Changed: Bump to v0.118.0

The `versionName` will now follow semantic version `2.0.0` spec in the format `major.minor.patch(-prerelease)(+buildmetadata)`. This will make versioning the prerelease and github debug builds versions easier and follow a spec. The @termux devs should make sure that when bumping `versionName` in `build.gradle` files and when creating a tag for new releases on github that they include the patch number as well, like `v0.1.0` instead of just `v0.1`. The `build.gradle` files and `attach_debug_apks_to_release` workflow will now validate the version as well and the build/attachment will fail if `versionName` does not follow the spec. https://semver.org/spec/v2.0.0.html

APKs released on github for debug build workflows and releases are now referred as `Github` releases as per 7b10a35f and 94e01d68, so APK filenames have been modified to include `github` in the filename. The APKs are still debuggable, so that tag remains too.

For github workflows the apk filename format will be `termux-app_<current_version>+<last_commit_hash>-github-debug_<arch>.apk`, like `termux-app_v0.1.0+xxxxxxxx-github-debug_arm64-v8a.apk` and for github releases it will be `termux-app_<release_version>+github-debug_<arch>.apk`, like `termux-app_v0.1+github-debug_arm64-v8a.apk`. The `last_commit_hash` will be the first `8` characters of the commit hash. The `<last_commit_hash>-github-debug` will act as `buildmetadata` and will not affect versioning precedence.

For github workflows triggered by `push` and `pull_request` triggers, `<current_version>+<last_commit_hash>` will be used as new `versionName`, like `v0.1.0+xxxxxxxx`. This will make tracking which build a user is using easier and help in resolving issues as well.

Note that users using github releases and termux devs using `$TERMUX_VERSION` environment variables in scripts should take commit hash into consideration and possibly use something like `dpkg --compare-versions "$TERMUX_VERSION" ge 0.1` where appropriate instead of mathematical comparisons.

The `app/build.gradle` now also supports following `TERMUX_` scoped environmental variables and `RELEASE_TAG` variable will not be used anymore since it may conflict with possibly other variables used by users. They will also allow enabling split APKs for both debug and release builds.

- `TERMUX_APP_VERSION_NAME` will be used as `versionName` if its set.
- `TERMUX_APK_VERSION_TAG` will be used as `termux-app_<TERMUX_APK_VERSION_TAG>_<arch>.apk` if its set. The `_<arch>` will only exist for split APKs.
- `TERMUX_SPLIT_APKS_FOR_DEBUG_BUILDS` will define whether split APKs should be enabled for debug builds. Default value is `1`.
- `TERMUX_SPLIT_APKS_FOR_RELEASE_BUILDS` will define whether split APKs should be enabled for release builds. Default value is `0` since F-Droid does not support split APKs, check #1904.

So based on above, if in future github releases are to be converted to `release` builds instead of `debug` builds, something like following can be done and even a workflow can be created for it. Users can also build split APKs release builds for themselves if they want.

```
export TERMUX_SPLIT_APKS_FOR_RELEASE_BUILDS=1
./gradlew assembleRelease -Pandroid.injected.signing.store.file="$(pwd)/app/dev_keystore.jks" -Pandroid.injected.signing.store.password=xrj45yWGLbsO7W0v -Pandroid.injected.signing.key.alias=alias -Pandroid.injected.signing.key.password=xrj45yWGLbsO7W0v
```

The APK will be found at `./app/build/outputs/apk/release/termux-app_<version>_<arch>.apk`

The `TERMUX_SPLIT_APKS_FOR_DEBUG_BUILDS` can be set to `0` to disable building split APKs which may be helpful for users building termux on device considering they will extra space and build time. Instructions for building are at https://github.com/termux/termux-packages/pull/7227#issuecomment-893022283.

```
export TERMUX_SPLIT_APKS_FOR_DEBUG_BUILDS=0
./gradlew assembleDebug
```

The APK will be found at `./app/build/outputs/apk/debug/termux-app_debug_universal.apk`

Note that F-Droid uses algorithm at https://gitlab.com/fdroid/fdroidserver/-/blob/2.1a0/fdroidserver/build.py#L746 to automatically detect built APKs, so ensure any modifications to location or file name are compliant. Current updates should be.

Auto updates are detected by checkupdates bot at https://gitlab.com/fdroid/fdroidserver/-/blob/master/fdroidserver/checkupdates.py

.editorconfig

@@ -14,3 +14,7 @@ insert_final_newline = true
 charset = utf-8
 indent_style = space
 indent_size = 4
+
+[*.y{a,}ml]
+indent_size = 2
+indent_style = space

.gitattributes

@@ -0,0 +1,5 @@
+*           text=auto
+*.bat       text eol=crlf
+*.gradle    text eol=lf
+*.mk        text eol=lf
+*.sh        text eol=lf

.github/FUNDING.yml

@@ -0,0 +1,2 @@
+patreon: termux
+custom: https://paypal.me/fornwall

.github/ISSUE_TEMPLATE/01-bug-report.yml

@@ -0,0 +1,44 @@
+name: "Bug report"
+description: "Create a report to help us improve"
+title: "[Bug]: "
+labels: ["bug report"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        This is a bug tracker of the Termux app. If you have issues with a package inside the app, then please open an issue at [termux-packages](https://github.com/termux/termux-packages) instead.
+
+        Use search before you open an issue to check whether your issue has been already reported and perhaps solved.
+
+        Android versions 5.x and 6.x are not supported anymore.
+
+        If you have issues installing packages then please see https://github.com/termux/termux-packages/issues/6726.
+  - type: textarea
+    attributes:
+      label: Problem description
+      description: |
+        A clear and concise description of what the problem is. You may attach the logs, screenshots, screen video recording and whatever else that will help to understand the issue.
+
+        Issues without proper description will be closed without solution.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Steps to reproduce the behavior.
+      description: |
+        Please post all necessary commands that are needed to reproduce the issue.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: What is the expected behavior?
+  - type: textarea
+    attributes:
+      label: System information
+      description: Please provide info about your device
+      value: |
+        * Termux application version:
+        * Android OS version:
+        * Device model:
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/02-feature-request.yml

@@ -0,0 +1,19 @@
+name: "Feature request"
+description: "Suggest a new feature for Termux application"
+title: "[Feature]: "
+labels: ["feature request"]
+body:
+  - type: textarea
+    attributes:
+      label: Feature description
+      description: Describe the feature and why you want it.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional information
+      description: |
+        Does another app/terminal emulator have this feature?
+        Provide links to more background information.
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Want ask questions about the project?
+    url: https://github.com/termux/termux-app/discussions
+    about: Join GitHub Discussions

.github/workflows/attach_debug_apks_to_release.yml

@@ -0,0 +1,76 @@
+name: Attach Debug APKs To Release
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  attach-apks:
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ env.GITHUB_REF }}
+
+      - name: Build and attach APKs to release
+        shell: bash {0}
+        run: |
+          exit_on_error() {
+              echo "$1"
+              echo "Deleting '$RELEASE_VERSION_NAME' release and '$GITHUB_REF' tag"
+              hub release delete "$RELEASE_VERSION_NAME"
+              git push --delete origin "$GITHUB_REF"
+              exit 1
+          }
+
+          echo "Setting vars"
+          RELEASE_VERSION_NAME="${GITHUB_REF/refs\/tags\//}"
+          if ! printf "%s" "${RELEASE_VERSION_NAME/v/}" | grep -qP '^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$'; then
+           exit_on_error "The versionName '${RELEASE_VERSION_NAME/v/}' is not a valid version as per semantic version '2.0.0' spec in the format 'major.minor.patch(-prerelease)(+buildmetadata)'. https://semver.org/spec/v2.0.0.html."
+          fi
+
+          APK_DIR_PATH="./app/build/outputs/apk/debug"
+          APK_VERSION_TAG="$RELEASE_VERSION_NAME+github-debug"
+          APK_BASENAME_PREFIX="termux-app_$APK_VERSION_TAG"
+
+          echo "Building APKs for '$RELEASE_VERSION_NAME' release"
+          export TERMUX_APK_VERSION_TAG="$APK_VERSION_TAG" # Used by app/build.gradle
+          if ! ./gradlew assembleDebug; then
+            exit_on_error "Build failed for '$RELEASE_VERSION_NAME' release."
+          fi
+
+          echo "Validating APKs"
+          for abi in universal arm64-v8a armeabi-v7a x86_64 x86; do
+            if ! test -f "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_$abi.apk"; then
+              files_found="$(ls "$APK_DIR_PATH")"
+              exit_on_error "Failed to find built APK at '$APK_DIR_PATH/${APK_BASENAME_PREFIX}_$abi.apk'. Files found: "$'\n'"$files_found"
+            fi
+          done
+
+          echo "Generating sha25sums file"
+          if ! (cd "$APK_DIR_PATH"; sha256sum \
+            "${APK_BASENAME_PREFIX}_universal.apk" \
+            "${APK_BASENAME_PREFIX}_arm64-v8a.apk" \
+            "${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
+            "${APK_BASENAME_PREFIX}_x86_64.apk" \
+            "${APK_BASENAME_PREFIX}_x86.apk" \
+            > sha256sums); then
+            exit_on_error "Generate sha25sums failed for '$RELEASE_VERSION_NAME' release."
+          fi
+
+          echo "Attaching APKs to github release"
+          if ! hub release edit \
+          -m "" \
+          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_universal.apk" \
+          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_arm64-v8a.apk" \
+          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
+          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86_64.apk" \
+          -a "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_x86.apk" \
+          -a "$APK_DIR_PATH/sha256sums" \
+          "$RELEASE_VERSION_NAME"; then
+            exit_on_error "Attach APKs to release failed for '$RELEASE_VERSION_NAME' release."
+          fi

.github/workflows/debug_build.yml

@@ -0,0 +1,113 @@
+name: Build
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v2
+
+      - name: Build APKs
+        shell: bash {0}
+        run: |
+          exit_on_error() { echo "$1"; exit 1; }
+
+          echo "Setting vars"
+          # Set RELEASE_VERSION_NAME to "<CURRENT_VERSION_NAME>+<last_commit_hash>"
+          CURRENT_VERSION_NAME_REGEX='\s+versionName "([^"]+)"$'
+          CURRENT_VERSION_NAME="$(grep -m 1 -E "$CURRENT_VERSION_NAME_REGEX" ./app/build.gradle | sed -r "s/$CURRENT_VERSION_NAME_REGEX/\1/")"
+          RELEASE_VERSION_NAME="v$CURRENT_VERSION_NAME+${GITHUB_SHA:0:7}" # The "+" is necessary so that versioning precedence is not affected
+          if ! printf "%s" "${RELEASE_VERSION_NAME/v/}" | grep -qP '^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$'; then
+           exit_on_error "The versionName '${RELEASE_VERSION_NAME/v/}' is not a valid version as per semantic version '2.0.0' spec in the format 'major.minor.patch(-prerelease)(+buildmetadata)'. https://semver.org/spec/v2.0.0.html."
+          fi
+
+          APK_DIR_PATH="./app/build/outputs/apk/debug"
+          APK_VERSION_TAG="$RELEASE_VERSION_NAME-github-debug" # Note the "-", GITHUB_SHA will already have "+" before it
+          APK_BASENAME_PREFIX="termux-app_$APK_VERSION_TAG"
+
+          # Used by attachment steps later
+          echo "APK_DIR_PATH=$APK_DIR_PATH" >> $GITHUB_ENV
+          echo "APK_VERSION_TAG=$APK_VERSION_TAG" >> $GITHUB_ENV
+          echo "APK_BASENAME_PREFIX=$APK_BASENAME_PREFIX" >> $GITHUB_ENV
+
+          echo "Building APKs for '$RELEASE_VERSION_NAME' build"
+          export TERMUX_APP_VERSION_NAME="${RELEASE_VERSION_NAME/v/}" # Used by app/build.gradle
+          export TERMUX_APK_VERSION_TAG="$APK_VERSION_TAG" # Used by app/build.gradle
+          if ! ./gradlew assembleDebug; then
+            exit_on_error "Build failed for '$RELEASE_VERSION_NAME' build."
+          fi
+
+          echo "Validating APKs"
+          for abi in universal arm64-v8a armeabi-v7a x86_64 x86; do
+            if ! test -f "$APK_DIR_PATH/${APK_BASENAME_PREFIX}_$abi.apk"; then
+              files_found="$(ls "$APK_DIR_PATH")"
+              exit_on_error "Failed to find built APK at '$APK_DIR_PATH/${APK_BASENAME_PREFIX}_$abi.apk'. Files found: "$'\n'"$files_found"
+            fi
+          done
+
+          echo "Generating sha25sums file"
+          if ! (cd "$APK_DIR_PATH"; sha256sum \
+            "${APK_BASENAME_PREFIX}_universal.apk" \
+            "${APK_BASENAME_PREFIX}_arm64-v8a.apk" \
+            "${APK_BASENAME_PREFIX}_armeabi-v7a.apk" \
+            "${APK_BASENAME_PREFIX}_x86_64.apk" \
+            "${APK_BASENAME_PREFIX}_x86.apk" \
+            > sha256sums); then
+            exit_on_error "Generate sha25sums failed for '$RELEASE_VERSION_NAME' release."
+          fi
+
+      - name: Attach universal APK file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.APK_BASENAME_PREFIX }}_universal
+          path: |
+            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}_universal.apk
+            ${{ env.APK_DIR_PATH }}/output-metadata.json
+
+      - name: Attach arm64-v8a APK file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.APK_BASENAME_PREFIX }}_arm64-v8a
+          path: |
+            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}_arm64-v8a.apk
+            ${{ env.APK_DIR_PATH }}/output-metadata.json
+
+      - name: Attach armeabi-v7a APK file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.APK_BASENAME_PREFIX }}_armeabi-v7a
+          path: |
+            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}_armeabi-v7a.apk
+            ${{ env.APK_DIR_PATH }}/output-metadata.json
+
+      - name: Attach x86_64 APK file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.APK_BASENAME_PREFIX }}_x86_64
+          path: |
+            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}_x86_64.apk
+            ${{ env.APK_DIR_PATH }}/output-metadata.json
+
+      - name: Attach x86 APK file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ env.APK_BASENAME_PREFIX }}_x86
+          path: |
+            ${{ env.APK_DIR_PATH }}/${{ env.APK_BASENAME_PREFIX }}_x86.apk
+            ${{ env.APK_DIR_PATH }}/output-metadata.json
+
+      - name: Attach sha256sums file
+        uses: actions/upload-artifact@v2
+        with:
+          name: sha256sums
+          path: |
+            ${{ env.APK_DIR_PATH }}/sha256sums
+            ${{ env.APK_DIR_PATH }}/output-metadata.json

.github/workflows/gradle-wrapper-validation.yml

@@ -0,0 +1,19 @@
+name: "Validate Gradle Wrapper"
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  validation:
+    name: "Validation"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1

.github/workflows/run_tests.yml

@@ -0,0 +1,21 @@
+name: Unit tests
+
+on:
+  push:
+    branches:
+      - master
+      - android-10
+  pull_request:
+    branches:
+      - master
+      - android-10
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Clone repository
+      uses: actions/checkout@v2
+    - name: Execute tests
+      run: |
+        ./gradlew test

.github/workflows/trigger_library_builds_on_jitpack.yml

@@ -0,0 +1,21 @@
+name: Trigger Termux Library Builds on Jitpack
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  trigger-termux-library-builds:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set vars
+        run: echo "TERMUX_LIB_VERSION=${GITHUB_REF/refs\/tags\/v/}" >> $GITHUB_ENV # Do not include "v" prefix
+      - name: Echo release
+        run: echo "Triggering termux library builds on jitpack for '$TERMUX_LIB_VERSION' release after waiting for 3 mins"
+      - name: Trigger termux library builds on jitpack
+        run: |
+          sleep 180 # It will take some time for the new tag to be detected by Jitpack
+          curl --max-time 600 --no-progress-meter "https://jitpack.io/com/termux/termux-app/terminal-emulator/$TERMUX_LIB_VERSION/terminal-emulator-$TERMUX_LIB_VERSION.pom"
+          curl --max-time 600 --no-progress-meter "https://jitpack.io/com/termux/termux-app/terminal-view/$TERMUX_LIB_VERSION/terminal-view-$TERMUX_LIB_VERSION.pom"
+          curl --max-time 600 --no-progress-meter "https://jitpack.io/com/termux/termux-app/termux-shared/$TERMUX_LIB_VERSION/termux-shared-$TERMUX_LIB_VERSION.pom"

.gitignore

@@ -4,8 +4,12 @@
 
 # Built application files
 build/
+release/
 *.apk
 *.so
+.externalNativeBuild
+.cxx
+*.zip
 
 # Crashlytics configuations
 com_crashlytics_export_strings.xml
@@ -19,19 +23,8 @@ local.properties
 # Signing files
 .signing/
 
-# User-specific configurations
-.idea/libraries/
-.idea/workspace.xml
-.idea/tasks.xml
-.idea/.name
-.idea/compiler.xml
-.idea/copyright/profiles_settings.xml
-.idea/encodings.xml
-.idea/misc.xml
-.idea/modules.xml
-.idea/scopes/scope_settings.xml
-.idea/vcs.xml
-.idea/dictionaries/
+# Intellij
+.idea/
 *.iml
 
 # OS-specific files
@@ -40,5 +33,6 @@ local.properties
 ._*
 .Spotlight-V100
 .Trashes
+.swp
 ehthumbs.db
 Thumbs.db

.idea/codeStyleSettings.xml

@@ -1,229 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectCodeStyleSettingsManager">
-    <option name="PER_PROJECT_SETTINGS">
-      <value>
-        <option name="CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="NAMES_COUNT_TO_USE_IMPORT_ON_DEMAND" value="99" />
-        <option name="PACKAGES_TO_USE_IMPORT_ON_DEMAND">
-          <value />
-        </option>
-        <option name="IMPORT_LAYOUT_TABLE">
-          <value>
-            <package name="android" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="com" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="junit" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="net" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="org" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="java" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="javax" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="false" />
-            <emptyLine />
-            <package name="" withSubpackages="true" static="true" />
-            <emptyLine />
-          </value>
-        </option>
-        <option name="RIGHT_MARGIN" value="100" />
-        <AndroidXmlCodeStyleSettings>
-          <option name="USE_CUSTOM_SETTINGS" value="true" />
-        </AndroidXmlCodeStyleSettings>
-        <Objective-C-extensions>
-          <option name="GENERATE_INSTANCE_VARIABLES_FOR_PROPERTIES" value="ASK" />
-          <option name="RELEASE_STYLE" value="IVAR" />
-          <option name="TYPE_QUALIFIERS_PLACEMENT" value="BEFORE" />
-          <file>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
-          </file>
-          <class>
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
-            <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
-          </class>
-          <extensions>
-            <pair source="cpp" header="h" />
-            <pair source="c" header="h" />
-          </extensions>
-        </Objective-C-extensions>
-        <XML>
-          <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
-        </XML>
-        <codeStyleSettings language="XML">
-          <option name="FORCE_REARRANGE_MODE" value="1" />
-          <indentOptions>
-            <option name="CONTINUATION_INDENT_SIZE" value="4" />
-          </indentOptions>
-          <arrangement>
-            <rules>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:android</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
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-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
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-              <section>
-                <rule>
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-                    </AND>
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-                      <NAME>style</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
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-                <rule>
-                  <match>
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-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
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-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
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-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
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-                      <NAME>.*:layout_height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
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-                      <NAME>.*:layout_.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
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-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:width</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>.*</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-            </rules>
-          </arrangement>
-        </codeStyleSettings>
-      </value>
-    </option>
-    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default (1)" />
-  </component>
-</project>

.idea/gradle.xml

@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="myModules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/inspectionProfiles/Project_Default.xml

@@ -1,71 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="AndroidLintLogConditional" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="AndroidLintNegativeMargin" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="AssignmentUsedAsCondition" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="DeprecatedAPI" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="DuplicateSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EmptyStatementBody" enabled="false" level="WARNING" enabled_by_default="false">
-      <option name="m_reportEmptyBlocks" value="true" />
-    </inspection_tool>
-    <inspection_tool class="EndlessLoop" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EqualityInConditionalOperator" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="Finalize" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoreTrivialFinalizers" value="true" />
-    </inspection_tool>
-    <inspection_tool class="FinalizeNotProtected" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="FormatSpecifiers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="FunctionImplicitDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="HidesUpperScope" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="HidingNonVirtualFunction" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ImplicitIntegerAndEnumConversion" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ImplicitPointerAndIntegerConversion" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatibleEnums" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatibleInitializers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="IncompatiblePointers" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="InstanceofChain" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="ignoreInstanceofOnLibraryClasses" value="false" />
-    </inspection_tool>
-    <inspection_tool class="KRUnspecifiedParameters" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="LocalValueEscapesScope" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="LoggerInitializedWithForeignClass" enabled="false" level="WARNING" enabled_by_default="false">
-      <option name="loggerClassName" value="org.apache.log4j.Logger,org.slf4j.LoggerFactory,org.apache.commons.logging.LogFactory,java.util.logging.Logger" />
-      <option name="loggerFactoryMethodName" value="getLogger,getLogger,getLog,getLogger" />
-    </inspection_tool>
-    <inspection_tool class="MissingReturn" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="MissingSwitchCase" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotImplementedFunctions" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotInitializedVariable" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="NotSuperclass" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCDFAInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCLoopDoesntUseConditionVariableInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCSimplifyInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedGlobalDeclarationInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedMacroInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedStructInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OCUnusedTemplateParameterInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="OnDemandImport" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="PrivateMemberAccessBetweenOuterAndInnerClass" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="ResourceNotFoundInspection" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SamePackageImport" enabled="true" level="WARNING" enabled_by_default="true" />
-    <inspection_tool class="SignednessMismatch" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
-      <option name="processCode" value="true" />
-      <option name="processLiterals" value="true" />
-      <option name="processComments" value="true" />
-    </inspection_tool>
-    <inspection_tool class="UnnecessaryFullyQualifiedName" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="m_ignoreJavadoc" value="false" />
-    </inspection_tool>
-    <inspection_tool class="UnreachableCode" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedExpressionResult" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedImportStatement" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedLocalVariable" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedLocalization" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedParameter" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="UnusedValue" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="ValueMayNotFitIntoReceiver" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="VariableNotUsedInsideIf" enabled="true" level="WARNING" enabled_by_default="true" />
-  </profile>
-</component>

.idea/inspectionProfiles/profiles_settings.xml

@@ -1,7 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <settings>
-    <option name="PROJECT_PROFILE" value="Project Default" />
-    <option name="USE_PROJECT_PROFILE" value="true" />
-    <version value="1.0" />
-  </settings>
-</component>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.travis.yml

@@ -1,30 +0,0 @@
-sudo: false
-language: android
-jdk: oraclejdk8
-
-env:
-  global:
-    # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
-    # via the "travis encrypt" command using the project repo's public key
-    - secure: "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"
-
-android:
-  components:
-    - platform-tools
-    - tools
-    - build-tools-24.0.1
-    - android-24
-    - extra-android-m2repository
-
-script:
-  - ./gradlew testDebugUnitTest
-
-addons:
-  coverity_scan:
-    project:
-      name: "termux/termux-app"
-      description: "Terminal emulator and Linux environment for Android"
-    notification_email: fredrik@fornwall.net
-    build_command_prepend: "./gradlew clean"
-    build_command: "./gradlew assemble"
-    branch_pattern: coverity_scan

LICENSE.md

@@ -0,0 +1,6 @@
+The `termux/termux-app` repository is released under [GPLv3 only](https://www.gnu.org/licenses/gpl-3.0.html) license.
+
+### Exceptions
+
+- [Terminal Emulator for Android](https://github.com/jackpal/Android-Terminal-Emulator) code is used which is released under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). Check [`terminal-view`](terminal-view) and [`terminal-emulator`](terminal-emulator) libraries.
+- Check [`termux-shared/LICENSE.md`](termux-shared/LICENSE.md) for `termux-shared` library related exceptions.

README.md

@@ -1,39 +1,256 @@
-Termux app
-==========
-[![Travis build status](https://travis-ci.org/termux/termux-app.svg?branch=master)](https://travis-ci.org/termux/termux-app)
+# Termux application
+
+[![Build status](https://github.com/termux/termux-app/workflows/Build/badge.svg)](https://github.com/termux/termux-app/actions)
+[![Testing status](https://github.com/termux/termux-app/workflows/Unit%20tests/badge.svg)](https://github.com/termux/termux-app/actions)
 [![Join the chat at https://gitter.im/termux/termux](https://badges.gitter.im/termux/termux.svg)](https://gitter.im/termux/termux)
+[![Join the Termux discord server](https://img.shields.io/discord/641256914684084234.svg?label=&logo=discord&logoColor=ffffff&color=5865F2)](https://discord.gg/HXpF69X)
+[![Termux library releases at Jitpack](https://jitpack.io/v/termux/termux-app.svg)](https://jitpack.io/#termux/termux-app)
 
 
-Termux is an Android terminal app and Linux environment.
+[Termux](https://termux.com) is an Android terminal application and Linux environment.
 
-* [Termux on Google Play Store](https://play.google.com/store/apps/details?id=com.termux)
-* [Termux on F-Droid](https://f-droid.org/repository/browse/?fdid=com.termux)
-* [termux.com](http://termux.com)
-* [Termux Help](http://termux.com/help/)
-* [Termux app on GitHub](https://github.com/termux/termux-app)
-* [Termux packages on GitHub](https://github.com/termux/termux-packages)
-* [Termux Google+ community](http://termux.com/community/)
+Note that this repository is for the app itself (the user interface and the terminal emulation). For the packages installable inside the app, see [termux/termux-packages](https://github.com/termux/termux-packages).
 
-License
-=======
-Released under [the GPLv3 license](https://www.gnu.org/licenses/gpl.html). Contains code from `Terminal Emulator for Android` which is released under [the Apache License 2.0](https://www.apache.org/licenses/).
+Quick how-to about Termux package management is available at [Package Management](https://github.com/termux/termux-packages/wiki/Package-Management). It also has info on how to fix **`repository is under maintenance or down`** errors when running `apt` or `pkg` commands.
 
-Building JNI libraries
-======================
-Execute the `build-jnilibs.sh` script to build the required JNI libraries.
+***
 
-Terminal resources
-==================
-* [XTerm control sequences](http://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
-* [vt100.net](http://vt100.net/)
-* [Terminal codes (ANSI and terminfo equivalents)](http://wiki.bash-hackers.org/scripting/terminalcodes)
+**@termux is looking for Termux Application maintainers for implementing new features, fixing bugs and reviewing pull requests since the current one (@fornwall) is inactive.**
 
-Terminal emulators
-==================
-* VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal. [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+), and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
-* iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2), [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](http://www.iterm2.com/documentation.html) (which includes [iTerm2 proprietary escape codes](http://www.iterm2.com/documentation-escape-codes.html)).
-* Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository), in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests), [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole) and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
-* hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm), including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js), and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
-* xterm: The grandfather of terminal emulators. [Source](http://invisible-island.net/datafiles/release/xterm.tar.gz).
-* Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
-* Android Terminal Emulator: Android terminal app which Termux terminal handling is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+Issue https://github.com/termux/termux-app/issues/1072 needs extra attention.
+
+***
+
+### Contents
+- [Termux App and Plugins](#Termux-App-and-Plugins)
+- [Installation](#Installation)
+- [Uninstallation](#Uninstallation)
+- [Important Links](#Important-Links)
+- [Debugging](#Debugging)
+- [For Maintainers and Contributors](#For-Maintainers-and-Contributors)
+- [Forking](#Forking)
+##
+
+
+
+## Termux App and Plugins
+
+The core [Termux](https://github.com/termux/termux-app) app comes with the following optional plugin apps.
+
+- [Termux:API](https://github.com/termux/termux-api)
+- [Termux:Boot](https://github.com/termux/termux-boot)
+- [Termux:Float](https://github.com/termux/termux-float)
+- [Termux:Styling](https://github.com/termux/termux-styling)
+- [Termux:Tasker](https://github.com/termux/termux-tasker)
+- [Termux:Widget](https://github.com/termux/termux-widget)
+##
+
+
+
+## Installation
+
+Latest version is `v0.118.0`.
+
+Termux can be obtained through various sources listed below for **only** Android `>= 7`. Support was dropped for Android `5` and `6` on [2020-01-01](https://www.reddit.com/r/termux/comments/dnzdbs/end_of_android56_support_on_20200101/) at `v0.83`, old builds are available on [archive.org](https://archive.org/details/termux-repositories-legacy).
+
+The APK files of different sources are signed with different signature keys. The `Termux` app and all its plugins use the same [`sharedUserId`](https://developer.android.com/guide/topics/manifest/manifest-element) `com.termux` and so all their APKs installed on a device must have been signed with the same signature key to work together and so they must all be installed from the same source. Do not attempt to mix them together, i.e do not try to install an app or plugin from `F-Droid` and another one from a different source like `Github`. Android Package Manager will also normally not allow installation of APKs with different signatures and you will get errors on installation like `App not installed`, `Failed to install due to an unknown error`, `INSTALL_FAILED_UPDATE_INCOMPATIBLE`, `INSTALL_FAILED_SHARED_USER_INCOMPATIBLE`, `signatures do not match previously installed version`, etc. This restriction can be bypassed with root or with custom roms.
+
+If you wish to install from a different source, then you must **uninstall any and all existing Termux or its plugin app APKs** from your device first, then install all new APKs from the same new source. Check [Uninstallation](#Uninstallation) section for details. You may also want to consider [Backing up Termux](https://wiki.termux.com/wiki/Backing_up_Termux) before the uninstallation so that you can restore it after re-installing from Termux different source.
+
+In the following paragraphs, *"bootstrap"* refers to the minimal packages that are shipped with the `termux-app` itself to start a working shell environment. Its zips are built and released [here](https://github.com/termux/termux-packages/releases).
+
+### F-Droid
+
+Termux application can be obtained from `F-Droid` from [here](https://f-droid.org/en/packages/com.termux/).
+
+You **do not** need to download the `F-Droid` app (via the `Download F-Droid` link) to install Termux. You can download the Termux APK directly from the site by clicking the `Download APK` link at the bottom of each version section.
+
+It usually takes a few days (or even a week or more) for updates to be available on `F-Droid` once an update has been released on `Github`. The `F-Droid` releases are built and published by `F-Droid` once they [detect](https://gitlab.com/fdroid/fdroiddata/-/blob/master/metadata/com.termux.yml) a new `Github` release. The Termux maintainers **do not** have any control over the building and publishing of the Termux apps on `F-Droid`. Moreover, the Termux maintainers also do not have access to the APK signing keys of `F-Droid` releases, so we cannot release an APK ourselves on `Github` that would be compatible with `F-Droid` releases.
+
+The `F-Droid` app often may not notify you of updates and you will manually have to do a pull down swipe action in the `Updates` tab of the app for it to check updates. Make sure battery optimizations are disabled for the app, check https://dontkillmyapp.com/ for details on how to do that.
+
+Only a universal APK is released, which will work on all supported architectures. The APK and bootstrap installation size will be `~180MB`. `F-Droid` does [not support](https://github.com/termux/termux-app/pull/1904) architecture specific APKs.
+
+### Github
+
+Termux application can be obtained on `Github` either from [`Github Releases`](https://github.com/termux/termux-app/releases) for version `>= 0.118.0` or from [`Github Build`](https://github.com/termux/termux-app/actions/workflows/debug_build.yml) action workflows.
+
+The APKs for `Github Releases` will be listed under `Assets` drop-down of a release. These are automatically attached when a new version is released.
+
+The APKs for `Github Build` action workflows will be listed under `Artifacts` section of a workflow run. These are created for each commit/push done to the repository and can be used by users who don't want to wait for releases and want to try out the latest features immediately or want to test their pull requests. Note that for action workflows, you need to be [**logged into a `Github` account**](https://github.com/login) for the `Artifacts` links to be enabled/clickable. If you are using the [`Github` app](https://github.com/mobile), then make sure to open workflow link in a browser like Chrome or Firefox that has your Github account logged in since the in-app browser may not be logged in. 
+
+The APKs for both of these are [`debuggable`](https://developer.android.com/studio/debug) and are compatible with each other but they are not compatible with other sources.
+
+Both universal and architecture specific APKs are released. The APK and bootstrap installation size will be `~180MB` if using universal and `~120MB` if using architecture specific. Check [here](https://github.com/termux/termux-app/issues/2153) for details.
+
+### Google Play Store **(Deprecated)**
+
+**Termux and its plugins are no longer updated on [Google Play Store](https://play.google.com/store/apps/details?id=com.termux) due to [android 10 issues](https://github.com/termux/termux-packages/wiki/Termux-and-Android-10) and have been deprecated.** The last version released for Android `>= 7` was `v0.101`. **It is highly recommended to not install Termux apps from Play Store any more.**
+
+There are plans for **unpublishing** the Termux app and all its plugins on Play Store soon so that new users cannot install it and for **disabling** the Termux apps with updates so that existing users **cannot continue using outdated versions**. You are encouraged to move to `F-Droid` or `Github` builds as soon as possible.
+
+You **will not need to buy plugins again** if you bought them on Play Store. All plugins are free on `F-Droid` and  `Github`.
+
+You can backup all your data under `$HOME/` and `$PREFIX/` before changing installation source, and then restore it afterwards, by following instructions at [Backing up Termux](https://wiki.termux.com/wiki/Backing_up_Termux) before the uninstallation.
+
+There is currently no work being done to solve android `10` issues and *working* updates will not be resumed on Google Play Store any time soon. We will continue targeting sdk `28` for now. So there is not much point in staying on Play Store builds and waiting for updates to be resumed. If for some reason you don't want to move to `F-Droid` or `Github` sources for now, then at least check [Package Management](https://github.com/termux/termux-packages/wiki/Package-Management) to **change your mirror**, otherwise, you will get **`repository is under maintenance or down`** errors when running `apt` or `pkg` commands. After that, it is also **highly advisable** to run `pkg upgrade` command to update all packages to the latest available versions, or at least update `termux-tools` package with `pkg install termux-tools` command. 
+
+Note that by upgrading old packages to latest versions, like that of `python` may break your setups/scripts since they may not be compatible anymore. Moreover, you will not be able to downgrade the package versions since termux repos only keep the latest version and you will have to manually rebuild the old versions of the packages if required as per https://github.com/termux/termux-packages/wiki/Building-packages.
+
+If you plan on staying on Play Store sources in future as well, then you may want to **disable automatic updates in Play Store** for Termux apps, since if and when updates to disable Termux apps are released, then **you will not be able to downgrade** and **will be forced** to move since apps won't work anymore. Only a way to backup `termux-app` data may be provided. The `termux-tools` [version `>= 0.135`](https://github.com/termux/termux-packages/pull/7493) will also show a banner at the top of the terminal saying `You are likely using a very old version of Termux, probably installed from the Google Play Store.`, you can remove it by running `rm -f /data/data/com.termux/files/usr/etc/motd-playstore` and restarting the app.
+
+#### Why Disable?
+
+<details>
+<summary></summary>
+
+- They should be disabled because deprecated things get removed and are not supported after some time, its the standard practice. It has been many months now since deprecation was announced and updates have not been released on Play Store since after `29 September 2020`.
+
+- The new versions have lots of **new features and fixes** which you can mostly check out in the Changelog of [`Github Releases`](https://github.com/termux/termux-app/releases) that you may be missing out. Extra detail is usually provided in [commit messages](https://github.com/termux/termux-app/commits/master).
+
+- Users on old versions are quite often reporting issues in multiple repositories and support forums that were **fixed months ago**, which we then have to deal with. The maintainers of @termux work in their free time, majorly for free, to work on development and provide support and having to re-re-deal with old issues takes away the already limited time from current work and is not possible to continue doing. Play Store page of `termux-app` has been filled with bad reviews of *"broken app"*, even though its clearly mentioned on the page that app is not being updated, yet users don't read and still install and report issues.
+
+- Asking people to pay for plugins when the `termux-app` at installation time is broken due to repository issues and has bugs is unethical.
+
+- Old versions don't have proper logging/debugging and crash report support. Reporting bugs without logs or detailed info is not helpful in solving them.
+
+- It's also easier for us to solve package related issues and provide custom functionality with app updates, which can't be done if users continue using old versions. For example, the [bintray shudown](https://github.com/termux/termux-packages/wiki/Package-Management) causing package install/update failures for new Play Store users is/was not an issue for F-Droid users since it is being shipped with updated bootstrap and repo info, hence no reported issues from new F-Droid users.
+</details>
+
+##
+
+
+
+## Uninstallation
+
+Uninstallation may be required if a user doesn't want Termux installed in their device anymore or is switching to a different [install source](#Installation). You may also want to consider [Backing up Termux](https://wiki.termux.com/wiki/Backing_up_Termux) before the uninstallation.
+
+To uninstall Termux completely, you must uninstall **any and all existing Termux or its plugin app APKs** listed in [Termux App and Plugins](#Termux-App-and-Plugins).
+
+Go to `Android Settings` -> `Applications` and then look for those apps. You can also use the search feature if it’s available on your device and search `termux` in the applications list.
+
+Even if you think you have not installed any of the plugins, it's strongly suggested to go through the application list in Android settings and double-check.
+##
+
+
+
+## Important Links
+
+### Community
+All community links are available [here](https://wiki.termux.com/wiki/Community).
+
+The main ones are the following.
+
+- [Termux Reddit community](https://reddit.com/r/termux)
+- [Termux Matrix Channel](https://matrix.to/#termux_termux:gitter.im)
+- [Termux Dev Matrix Channel](https://matrix.to/#termux_dev:gitter.im)
+- [Termux Twitter](https://twitter.com/termux/)
+- [Termux Reports Email](mailto:termuxreports@groups.io)
+
+### Wikis
+
+- [Termux Wiki](https://wiki.termux.com/wiki/)
+- [Termux App Wiki](https://github.com/termux/termux-app/wiki)
+- [Termux Packages Wiki](https://github.com/termux/termux-packages/wiki)
+
+### Miscellaneous
+- [FAQ](https://wiki.termux.com/wiki/FAQ)
+- [Termux File System Layout](https://github.com/termux/termux-packages/wiki/Termux-file-system-layout)
+- [Differences From Linux](https://wiki.termux.com/wiki/Differences_from_Linux)
+- [Package Management](https://wiki.termux.com/wiki/Package_Management)
+- [Remote Access](https://wiki.termux.com/wiki/Remote_Access)
+- [Backing up Termux](https://wiki.termux.com/wiki/Backing_up_Termux)
+- [Terminal Settings](https://wiki.termux.com/wiki/Terminal_Settings)
+- [Touch Keyboard](https://wiki.termux.com/wiki/Touch_Keyboard)
+- [Android Storage and Sharing Data with Other Apps](https://wiki.termux.com/wiki/Internal_and_external_storage)
+- [Android APIs](https://wiki.termux.com/wiki/Termux:API)
+- [Moved Termux Packages Hosting From Bintray to IPFS](https://github.com/termux/termux-packages/issues/6348)
+- [Running Commands in Termux From Other Apps via `RUN_COMMAND` intent](https://github.com/termux/termux-app/wiki/RUN_COMMAND-Intent)
+- [Termux and Android 10](https://github.com/termux/termux-packages/wiki/Termux-and-Android-10)
+
+
+### Terminal
+
+<details>
+<summary></summary>
+
+### Terminal resources
+
+- [XTerm control sequences](https://invisible-island.net/xterm/ctlseqs/ctlseqs.html)
+- [vt100.net](https://vt100.net/)
+- [Terminal codes (ANSI and terminfo equivalents)](https://wiki.bash-hackers.org/scripting/terminalcodes)
+
+### Terminal emulators
+
+- VTE (libvte): Terminal emulator widget for GTK+, mainly used in gnome-terminal. [Source](https://github.com/GNOME/vte), [Open Issues](https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22vte%22+), and [All (including closed) issues](https://bugzilla.gnome.org/buglist.cgi?bug_status=RESOLVED&bug_status=VERIFIED&chfield=resolution&chfieldfrom=-2000d&chfieldvalue=FIXED&product=vte&resolution=FIXED).
+
+- iTerm 2: OS X terminal application. [Source](https://github.com/gnachman/iTerm2), [Issues](https://gitlab.com/gnachman/iterm2/issues) and [Documentation](https://iterm2.com/documentation.html) (which includes [iTerm2 proprietary escape codes](https://iterm2.com/documentation-escape-codes.html)).
+
+- Konsole: KDE terminal application. [Source](https://projects.kde.org/projects/kde/applications/konsole/repository), in particular [tests](https://projects.kde.org/projects/kde/applications/konsole/repository/revisions/master/show/tests), [Bugs](https://bugs.kde.org/buglist.cgi?bug_severity=critical&bug_severity=grave&bug_severity=major&bug_severity=crash&bug_severity=normal&bug_severity=minor&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole) and [Wishes](https://bugs.kde.org/buglist.cgi?bug_severity=wishlist&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&bug_status=REOPENED&product=konsole).
+
+- hterm: JavaScript terminal implementation from Chromium. [Source](https://github.com/chromium/hterm), including [tests](https://github.com/chromium/hterm/blob/master/js/hterm_vt_tests.js), and [Google group](https://groups.google.com/a/chromium.org/forum/#!forum/chromium-hterm).
+
+- xterm: The grandfather of terminal emulators. [Source](https://invisible-island.net/datafiles/release/xterm.tar.gz).
+
+- Connectbot: Android SSH client. [Source](https://github.com/connectbot/connectbot)
+
+- Android Terminal Emulator: Android terminal app which Termux terminal handling is based on. Inactive. [Source](https://github.com/jackpal/Android-Terminal-Emulator).
+</details>
+
+##
+
+
+
+### Debugging
+
+You can help debug problems of the `Termux` app and its plugins by setting appropriate `logcat` `Log Level` in `Termux` app settings -> `<APP_NAME>` -> `Debugging` -> `Log Level` (Requires `Termux` app version `>= 0.118.0`). The `Log Level` defaults to `Normal` and log level `Verbose` currently logs additional information. Its best to revert log level to `Normal` after you have finished debugging since private data may otherwise be passed to `logcat` during normal operation and moreover, additional logging increases execution time.
+
+The plugin apps **do not execute the commands themselves** but send execution intents to `Termux` app, which has its own log level which can be set in `Termux` app settings -> `Termux` -> `Debugging` -> `Log Level`. So you must set log level for both `Termux` and the respective plugin app settings to get all the info.
+
+Once log levels have been set, you can run the `logcat` command in `Termux` app terminal to view the logs in realtime (`Ctrl+c` to stop) or use `logcat -d > logcat.txt` to take a dump of the log. You can also view the logs from a PC over `ADB`. For more information, check official android `logcat` guide [here](https://developer.android.com/studio/command-line/logcat).
+
+Moreover, users can generate termux files `stat` info and `logcat` dump automatically too with terminal's long hold options menu `More` -> `Report Issue` option and selecting `YES` in the prompt shown to add debug info. This can be helpful for reporting and debugging other issues. If the report generated is too large, then `Save To File` option in context menu (3 dots on top right) of `ReportActivity` can be used and the file viewed/shared instead.
+
+Users must post complete report (optionally without sensitive info) when reporting issues. Issues opened with **(partial) screenshots of error reports** instead of text will likely be automatically closed/deleted.
+
+##### Log Levels
+
+- `Off` - Log nothing.
+- `Normal` - Start logging error, warn and info messages and stacktraces.
+- `Debug` - Start logging debug messages.
+- `Verbose` - Start logging verbose messages.
+##
+
+
+
+## For Maintainers and Contributors
+
+The [termux-shared](termux-shared) library was added in [`v0.109`](https://github.com/termux/termux-app/releases/tag/v0.109). It defines shared constants and utils of the Termux app and its plugins. It was created to allow for the removal of all hardcoded paths in the Termux app. Some of the termux plugins are using this as well and rest will in future. If you are contributing code that is using a constant or a util that may be shared, then define it in `termux-shared` library if it currently doesn't exist and reference it from there. Update the relevant changelogs as well. Pull requests using hardcoded values **will/should not** be accepted. Termux app and plugin specific classes must be added under `com.termux.shared.termux` package and general classes outside it. The [`termux-shared` `LICENSE`](termux-shared/LICENSE.md) must also be checked and updated if necessary when contributing code. The licenses of any external library or code must be honoured.
+
+The main Termux constants are defined by [`TermuxConstants`](https://github.com/termux/termux-app/blob/master/termux-shared/src/main/java/com/termux/shared/termux/TermuxConstants.java) class. It also contains information on how to fork Termux or build it with your own package name. Changing the package name will require building the bootstrap zip packages and other packages with the new `$PREFIX`, check [Building Packages](https://github.com/termux/termux-packages/wiki/Building-packages) for more info.
+
+Check [Termux Libraries](https://github.com/termux/termux-app/wiki/Termux-Libraries) for how to import termux libraries in plugin apps and [Forking and Local Development](https://github.com/termux/termux-app/wiki/Termux-Libraries#forking-and-local-development) for how to update termux libraries for plugins.
+
+Commit messages **must** use [Conventional Commits](https://www.conventionalcommits.org) specs so that chagelogs can automatically be generated by the [`create-conventional-changelog`](https://github.com/termux/create-conventional-changelog) script, check its repo for further details on the spec. Use the following `types` as `Added: Add foo`, `Added|Fixed: Add foo and fix bar`, `Changed!: Change baz as a breaking change`, etc. You can optionally add a scope as well, like `Fixed(terminal): Some bug`. The space after `:` is necessary.
+
+- **Added** for new features.
+- **Changed** for changes in existing functionality.
+- **Deprecated** for soon-to-be removed features.
+- **Removed** for now removed features.
+- **Fixed** for any bug fixes.
+- **Security** in case of vulnerabilities.
+- **Docs** for updating documentation.
+
+Changelogs for releases are generated based on [Keep a Changelog](https://github.com/olivierlacan/keep-a-changelog) specs.
+
+The `versionName` in `build.gradle` files of Termux and its plugin apps must follow the [semantic version `2.0.0` spec](https://semver.org/spec/v2.0.0.html) in the format `major.minor.patch(-prerelease)(+buildmetadata)`. When bumping `versionName` in `build.gradle` files and when creating a tag for new releases on github, make sure to include the patch number as well, like `v0.1.0` instead of just `v0.1`. The `build.gradle` files and `attach_debug_apks_to_release` workflow validates the version as well and the build/attachment will fail if `versionName` does not follow the spec.
+##
+
+
+
+## Forking
+
+- Check [`TermuxConstants`](https://github.com/termux/termux-app/blob/master/termux-shared/src/main/java/com/termux/shared/termux/TermuxConstants.java) javadocs for instructions on what changes to make in the app to change package name.
+- You also need to recompile bootstrap zip for the new package name. Check [here](https://github.com/termux/termux-app/issues/1983) and [here](https://github.com/termux/termux-app/issues/2081#issuecomment-865280111) for experimental work on it.
+- Currently, not all plugins use `TermuxConstants` from `termux-shared` library and have hardcoded `com.termux` values and will need to be manually patched.
+- If forking termux plugins, check [Forking and Local Development](https://github.com/termux/termux-app/wiki/Termux-Libraries#forking-and-local-development) for info on how to use termux libraries for plugins.

app/build.gradle

@@ -1,37 +1,210 @@
-apply plugin: 'com.android.application'
+plugins {
+    id "com.android.application"
+}
 
 android {
-    compileSdkVersion 24
-    buildToolsVersion "24.0.1"
+    compileSdkVersion project.properties.compileSdkVersion.toInteger()
+    ndkVersion = System.getenv("JITPACK_NDK_VERSION") ?: project.properties.ndkVersion
+    def appVersionName = System.getenv("TERMUX_APP_VERSION_NAME") ?: ""
+    def apkVersionTag = System.getenv("TERMUX_APK_VERSION_TAG") ?: ""
+    def splitAPKsForDebugBuilds = System.getenv("TERMUX_SPLIT_APKS_FOR_DEBUG_BUILDS") ?: "1"
+    def splitAPKsForReleaseBuilds = System.getenv("TERMUX_SPLIT_APKS_FOR_RELEASE_BUILDS") ?: "0" // F-Droid does not support split APKs #1904
 
     dependencies {
-        compile 'com.android.support:support-annotations:24.1.1'
-        compile "com.android.support:support-v4:24.1.1"
+        implementation "androidx.annotation:annotation:1.3.0"
+        implementation "androidx.core:core:1.6.0"
+        implementation "androidx.drawerlayout:drawerlayout:1.1.1"
+        implementation "androidx.preference:preference:1.1.1"
+        implementation "androidx.viewpager:viewpager:1.0.0"
+        implementation "com.google.guava:guava:24.1-jre"
+        implementation "io.noties.markwon:core:$markwonVersion"
+        implementation "io.noties.markwon:ext-strikethrough:$markwonVersion"
+        implementation "io.noties.markwon:linkify:$markwonVersion"
+        implementation "io.noties.markwon:recycler:$markwonVersion"
+
+        implementation project(":terminal-view")
+        implementation project(":termux-shared")
     }
 
     defaultConfig {
         applicationId "com.termux"
-        minSdkVersion 21
-        targetSdkVersion 24
-        versionCode 38
-        versionName "0.38"
+        minSdkVersion project.properties.minSdkVersion.toInteger()
+        targetSdkVersion project.properties.targetSdkVersion.toInteger()
+        versionCode 118
+        versionName "0.118.0"
 
-        ndk {
-            moduleName "libtermux"
-            abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
-            cFlags "-std=c11 -Wall -Wextra -Os -fno-stack-protector -nostdlib -Wl,--gc-sections"
+        if (appVersionName) versionName = appVersionName
+        validateVersionName(versionName)
+
+        manifestPlaceholders.TERMUX_PACKAGE_NAME = "com.termux"
+        manifestPlaceholders.TERMUX_APP_NAME = "Termux"
+        manifestPlaceholders.TERMUX_API_APP_NAME = "Termux:API"
+        manifestPlaceholders.TERMUX_BOOT_APP_NAME = "Termux:Boot"
+        manifestPlaceholders.TERMUX_FLOAT_APP_NAME = "Termux:Float"
+        manifestPlaceholders.TERMUX_STYLING_APP_NAME = "Termux:Styling"
+        manifestPlaceholders.TERMUX_TASKER_APP_NAME = "Termux:Tasker"
+        manifestPlaceholders.TERMUX_WIDGET_APP_NAME = "Termux:Widget"
+
+        externalNativeBuild {
+            ndkBuild {
+                cFlags "-std=c11", "-Wall", "-Wextra", "-Werror", "-Os", "-fno-stack-protector", "-Wl,--gc-sections"
+            }
+        }
+
+        splits {
+            abi {
+                enable ((gradle.startParameter.taskNames.any { it.contains("Debug") } && splitAPKsForDebugBuilds == "1") ||
+                    (gradle.startParameter.taskNames.any { it.contains("Release") } && splitAPKsForReleaseBuilds == "1"))
+                reset ()
+                include 'x86', 'x86_64', 'armeabi-v7a', 'arm64-v8a'
+                universalApk true
+            }
+        }
+    }
+
+    signingConfigs {
+        debug {
+            storeFile file('dev_keystore.jks')
+            keyAlias 'alias'
+            storePassword 'xrj45yWGLbsO7W0v'
+            keyPassword 'xrj45yWGLbsO7W0v'
         }
     }
 
     buildTypes {
         release {
             minifyEnabled true
-            shrinkResources true
+            shrinkResources false // Reproducible builds
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
+
+        debug {
+            signingConfig signingConfigs.debug
+        }
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    externalNativeBuild {
+        ndkBuild {
+            path "src/main/cpp/Android.mk"
+        }
+    }
+
+    lintOptions {
+        disable 'ProtectedPermissions'
+    }
+
+    testOptions {
+        unitTests {
+            includeAndroidResources = true
+        }
+    }
+
+    packagingOptions {
+        jniLibs {
+            useLegacyPackaging true
+        }
+    }
+
+    applicationVariants.all { variant ->
+        variant.outputs.all { output ->
+            if (variant.buildType.name == "debug") {
+                def abi = output.getFilter(com.android.build.OutputFile.ABI)
+                outputFileName = new File("termux-app_" + (apkVersionTag ? apkVersionTag : "debug") + "_" + (abi ? abi : "universal") + ".apk")
+            } else if (variant.buildType.name == "release") {
+                def abi = output.getFilter(com.android.build.OutputFile.ABI)
+                outputFileName = new File("termux-app_" + (apkVersionTag ? apkVersionTag : "release") + "_" + (abi ? abi : "universal") + ".apk")
+            }
+        }
+    }
+
 }
 
 dependencies {
-    testCompile 'junit:junit:4.12'
+    testImplementation "junit:junit:4.13.2"
+    testImplementation "org.robolectric:robolectric:4.4"
+}
+
+task versionName {
+    doLast {
+        print android.defaultConfig.versionName
+    }
+}
+
+def validateVersionName(String versionName) {
+    // https://semver.org/spec/v2.0.0.html#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+    // ^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
+    if (!java.util.regex.Pattern.matches("^(0|[1-9]\\d*)\\.(0|[1-9]\\d*)\\.(0|[1-9]\\d*)(?:-((?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\\.(?:0|[1-9]\\d*|\\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\\+([0-9a-zA-Z-]+(?:\\.[0-9a-zA-Z-]+)*))?\$", versionName))
+        throw new GradleException("The versionName '"  + versionName + "' is not a valid version as per semantic version '2.0.0' spec in the format 'major.minor.patch(-prerelease)(+buildmetadata)'. https://semver.org/spec/v2.0.0.html.")
+}
+
+def downloadBootstrap(String arch, String expectedChecksum, String version) {
+    def digest = java.security.MessageDigest.getInstance("SHA-256")
+
+    def localUrl = "src/main/cpp/bootstrap-" + arch + ".zip"
+    def file = new File(projectDir, localUrl)
+    if (file.exists()) {
+        def buffer = new byte[8192]
+        def input = new FileInputStream(file)
+        while (true) {
+            def readBytes = input.read(buffer)
+            if (readBytes < 0) break
+            digest.update(buffer, 0, readBytes)
+        }
+        def checksum = new BigInteger(1, digest.digest()).toString(16)
+        while (checksum.length() < 64) { checksum = "0" + checksum }
+        if (checksum == expectedChecksum) {
+            return
+        } else {
+            logger.quiet("Deleting old local file with wrong hash: " + localUrl)
+            file.delete()
+        }
+    }
+
+    def remoteUrl = "https://github.com/termux/termux-packages/releases/download/bootstrap-" + version + "/bootstrap-" + arch + ".zip"
+    logger.quiet("Downloading " + remoteUrl + " ...")
+
+    file.parentFile.mkdirs()
+    def out = new BufferedOutputStream(new FileOutputStream(file))
+
+    def connection = new URL(remoteUrl).openConnection()
+    connection.setInstanceFollowRedirects(true)
+    def digestStream = new java.security.DigestInputStream(connection.inputStream, digest)
+    out << digestStream
+    out.close()
+
+    def checksum = new BigInteger(1, digest.digest()).toString(16)
+    while (checksum.length() < 64) { checksum = "0" + checksum }
+    if (checksum != expectedChecksum) {
+        file.delete()
+        throw new GradleException("Wrong checksum for " + remoteUrl + ": expected: " + expectedChecksum + ", actual: " + checksum)
+    }
+}
+
+clean {
+    doLast {
+        def tree = fileTree(new File(projectDir, 'src/main/cpp'))
+        tree.include 'bootstrap-*.zip'
+        tree.each { it.delete() }
+    }
+}
+
+task downloadBootstraps() {
+    doLast {
+        def version = "2022.01.07-r1"
+        downloadBootstrap("aarch64", "0fe6d0159d12fcb8baf7750ce9072b9b36f742662b02ad4da145ab85873614cd", version)
+        downloadBootstrap("arm",     "0a6014e2ec3b7079524fee3caabd02be05bcb4add3c6cd9e5ad98408b428c717", version)
+        downloadBootstrap("i686",    "c55369a9af1316dc3d99457aa23cce64b29c1e60e375159352c0d4b9cfed4ac6", version)
+        downloadBootstrap("x86_64",  "e93a7c66d15edb7d1b5ceca906255c85ead35a8b6a52f93524e117cfb07e6778", version)
+    }
+}
+
+afterEvaluate {
+    android.applicationVariants.all { variant ->
+        variant.javaCompileProvider.get().dependsOn(downloadBootstraps)
+    }
 }

app/proguard-rules.pro

@@ -7,11 +7,11 @@
 # For more details, see
 #   http://developer.android.com/guide/developing/tools/proguard.html
 
-# Add any project specific keep options here:
+-dontobfuscate
+#-renamesourcefileattribute SourceFile
+#-keepattributes SourceFile,LineNumberTable
 
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
+# Temp fix for androidx.window:window:1.0.0-alpha09 imported by termux-shared
+# https://issuetracker.google.com/issues/189001730
+# https://android-review.googlesource.com/c/platform/frameworks/support/+/1757630
+-keep class androidx.window.** { *; }

app/src/androidTest/java/com/termux/ApplicationTest.java

@@ -1,13 +0,0 @@
-package com.termux;
-
-import android.app.Application;
-import android.test.ApplicationTestCase;
-
-/**
- * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
- */
-public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
-}

app/src/main/AndroidManifest.xml

@@ -1,58 +1,119 @@
+<?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="com.termux"
     android:installLocation="internalOnly"
-    android:sharedUserId="com.termux"
-    android:sharedUserLabel="@string/shared_user_label" >
+    android:sharedUserId="${TERMUX_PACKAGE_NAME}"
+    android:sharedUserLabel="@string/shared_user_label">
 
-    <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
-    <uses-feature android:name="android.software.leanback" android:required="false" />
+    <uses-feature
+        android:name="android.hardware.touchscreen"
+        android:required="false" />
+    <uses-feature
+        android:name="android.software.leanback"
+        android:required="false" />
 
+    <permission
+        android:name="${TERMUX_PACKAGE_NAME}.permission.RUN_COMMAND"
+        android:description="@string/permission_run_command_description"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/permission_run_command_label"
+        android:protectionLevel="dangerous" />
+
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+    <uses-permission android:name="android.permission.READ_LOGS" />
+    <uses-permission android:name="android.permission.DUMP" />
+    <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+    <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" tools:ignore="ProtectedPermissions" />
 
     <application
-        android:allowBackup="true"
-        android:fullBackupContent="@xml/backupscheme"
-        android:icon="@drawable/ic_launcher"
+        android:name=".app.TermuxApplication"
+        android:allowBackup="false"
         android:banner="@drawable/banner"
+        android:extractNativeLibs="true"
+        android:icon="@mipmap/ic_launcher"
         android:label="@string/application_name"
-        android:theme="@style/Theme.Termux"
-        android:supportsRtl="false" >
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="false"
+        android:theme="@style/Theme.Termux">
 
         <activity
-            android:name="com.termux.app.TermuxActivity"
-            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+            android:name=".app.TermuxActivity"
+            android:configChanges="orientation|screenSize|smallestScreenSize|density|screenLayout|uiMode|keyboard|keyboardHidden|navigation"
+            android:label="@string/application_name"
             android:launchMode="singleTask"
-            android:windowSoftInputMode="adjustResize|stateAlwaysVisible" >
+            android:resizeableActivity="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LEANBACK_LAUNCHER" />
             </intent-filter>
+
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
         </activity>
 
-        <activity
-            android:name="com.termux.app.TermuxHelpActivity"
-            android:exported="false"
-            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
-            android:parentActivityName=".app.TermuxActivity"
-            android:label="@string/application_name" />
+        <activity-alias
+            android:name=".HomeActivity"
+            android:targetActivity=".app.TermuxActivity">
+
+            <!-- Launch activity automatically on boot on Android Things devices -->
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.IOT_LAUNCHER" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity-alias>
 
         <activity
-            android:name="com.termux.filepicker.TermuxFileReceiverActivity"
+            android:name=".app.activities.HelpActivity"
+            android:exported="false"
             android:label="@string/application_name"
-            android:taskAffinity="com.termux.filereceiver"
+            android:parentActivityName=".app.TermuxActivity"
+            android:resizeableActivity="true"
+            android:theme="@android:style/Theme.Material.Light.DarkActionBar" />
+
+        <activity
+            android:name=".app.activities.SettingsActivity"
+            android:exported="true"
+            android:label="@string/title_activity_termux_settings"
+            android:theme="@style/Theme.AppCompat.Light.DarkActionBar" />
+
+        <activity
+            android:name=".shared.activities.ReportActivity"
+            android:theme="@style/Theme.AppCompat.TermuxReportActivity"
+            android:documentLaunchMode="intoExisting"
+            />
+
+        <activity
+            android:name=".filepicker.TermuxFileReceiverActivity"
             android:excludeFromRecents="true"
-            android:noHistory="true">
+            android:label="@string/application_name"
+            android:noHistory="true"
+            android:resizeableActivity="true"
+            android:taskAffinity="${TERMUX_PACKAGE_NAME}.filereceiver">
+
             <!-- Accept multiple file types when sending. -->
             <intent-filter>
-                <action android:name="android.intent.action.SEND"/>
+                <action android:name="android.intent.action.SEND" />
+
                 <category android:name="android.intent.category.DEFAULT" />
+
                 <data android:mimeType="application/*" />
                 <data android:mimeType="audio/*" />
                 <data android:mimeType="image/*" />
@@ -61,33 +122,71 @@
                 <data android:mimeType="text/*" />
                 <data android:mimeType="video/*" />
             </intent-filter>
-            <!-- Be more restrictive for viewing files, restricting ourselves to text files. -->
-            <intent-filter>
-                <action android:name="android.intent.action.VIEW"/>
+            <!-- Accept multiple file types to let Termux be usable as generic file viewer. -->
+            <intent-filter tools:ignore="AppLinkUrlError">
+                <action android:name="android.intent.action.VIEW" />
+
                 <category android:name="android.intent.category.DEFAULT" />
+
+                <data android:mimeType="application/*" />
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
                 <data android:mimeType="text/*" />
-                <data android:mimeType="application/json" />
-                <data android:mimeType="application/*xml*" />
-                <data android:mimeType="application/*latex*" />
-                <data android:mimeType="application/javascript" />
+                <data android:mimeType="video/*" />
             </intent-filter>
         </activity>
 
+
         <provider
             android:name=".filepicker.TermuxDocumentsProvider"
-            android:authorities="com.termux.documents"
-            android:grantUriPermissions="true"
+            android:authorities="${TERMUX_PACKAGE_NAME}.documents"
             android:exported="true"
+            android:grantUriPermissions="true"
             android:permission="android.permission.MANAGE_DOCUMENTS">
             <intent-filter>
                 <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
             </intent-filter>
         </provider>
 
+        <provider
+            android:name=".app.TermuxOpenReceiver$ContentProvider"
+            android:authorities="${TERMUX_PACKAGE_NAME}.files"
+            android:exported="true"
+            android:grantUriPermissions="true"
+            android:permission="${TERMUX_PACKAGE_NAME}.permission.RUN_COMMAND" />
+
+
+        <receiver android:name=".app.TermuxOpenReceiver" android:exported="false" />
+
+        <receiver android:name=".shared.activities.ReportActivity$ReportActivityBroadcastReceiver" android:exported="false" />
+
+
         <service
-            android:name="com.termux.app.TermuxService"
+            android:name=".app.TermuxService"
             android:exported="false" />
 
+        <service
+            android:name=".app.RunCommandService"
+            android:exported="true"
+            android:permission="${TERMUX_PACKAGE_NAME}.permission.RUN_COMMAND">
+            <intent-filter>
+                <action android:name="${TERMUX_PACKAGE_NAME}.RUN_COMMAND" />
+            </intent-filter>
+        </service>
+
+
+        <!-- This (or rather, value 2.1 or higher) is needed to make the Samsung Galaxy S8 mark the
+        app with "This app is optimized to run in full screen." -->
+        <meta-data
+            android:name="android.max_aspect"
+            android:value="10.0" />
+        <meta-data
+            android:name="com.sec.android.support.multiwindow"
+            android:value="true" />
+        <meta-data
+            android:name="com.samsung.android.multidisplay.keep_process_alive"
+            android:value="true" />
+
     </application>
 
 </manifest>

app/src/main/cpp/Android.mk

@@ -0,0 +1,5 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE := libtermux-bootstrap
+LOCAL_SRC_FILES := termux-bootstrap-zip.S termux-bootstrap.c
+include $(BUILD_SHARED_LIBRARY)

app/src/main/cpp/termux-bootstrap-zip.S

@@ -0,0 +1,18 @@
+     .global blob
+     .global blob_size
+     .section .rodata
+ blob:
+ #if defined __i686__
+     .incbin "bootstrap-i686.zip"
+ #elif defined __x86_64__
+     .incbin "bootstrap-x86_64.zip"
+ #elif defined __aarch64__
+     .incbin "bootstrap-aarch64.zip"
+ #elif defined __arm__
+     .incbin "bootstrap-arm.zip"
+ #else
+ # error Unsupported arch
+ #endif
+ 1:
+ blob_size:
+     .int 1b - blob

app/src/main/cpp/termux-bootstrap.c

@@ -0,0 +1,11 @@
+#include <jni.h>
+
+extern jbyte blob[];
+extern int blob_size;
+
+JNIEXPORT jbyteArray JNICALL Java_com_termux_app_TermuxInstaller_getZip(JNIEnv *env, __attribute__((__unused__)) jobject This)
+{
+    jbyteArray ret = (*env)->NewByteArray(env, blob_size);
+    (*env)->SetByteArrayRegion(env, ret, 0, blob_size, blob);
+    return ret;
+}

app/src/main/java/com/termux/app/BackgroundJob.java

@@ -1,112 +0,0 @@
-package com.termux.app;
-
-import android.util.Log;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.nio.charset.StandardCharsets;
-
-/**
- * A background job launched by Termux.
- */
-public final class BackgroundJob {
-
-    private static final String LOG_TAG = "termux-background";
-
-    final Process mProcess;
-
-    public BackgroundJob(File cwd, File fileToExecute, String[] args) throws IOException {
-        String[] env = buildEnvironment(false, cwd.getAbsolutePath());
-
-        String[] progArray = new String[args.length + 1];
-
-        mProcess = Runtime.getRuntime().exec(progArray, env, cwd);
-
-        new Thread() {
-            @Override
-            public void run() {
-                while (true) {
-                    try {
-                        int exitCode = mProcess.waitFor();
-                        if (exitCode == 0) {
-                            Log.i(LOG_TAG, "exited normally");
-                            return;
-                        } else {
-                            Log.i(LOG_TAG, "exited with exit code: " + exitCode);
-                        }
-                    } catch (InterruptedException e) {
-                        // Ignore.
-                    }
-                }
-            }
-        }.start();
-
-        new Thread() {
-            @Override
-            public void run() {
-                InputStream stdout = mProcess.getInputStream();
-                BufferedReader reader = new BufferedReader(new InputStreamReader(stdout, StandardCharsets.UTF_8));
-                String line;
-                try {
-                    // FIXME: Long lines.
-                    while ((line = reader.readLine()) != null) {
-                        Log.i(LOG_TAG, line);
-                    }
-                } catch (IOException e) {
-                    // Ignore.
-                }
-            }
-        }.start();
-
-
-        new Thread() {
-            @Override
-            public void run() {
-                InputStream stderr = mProcess.getErrorStream();
-                BufferedReader reader = new BufferedReader(new InputStreamReader(stderr, StandardCharsets.UTF_8));
-                String line;
-                try {
-                    // FIXME: Long lines.
-                    while ((line = reader.readLine()) != null) {
-                        Log.e(LOG_TAG, line);
-                    }
-                } catch (IOException e) {
-                    // Ignore.
-                }
-            }
-        };
-    }
-
-    public String[] buildEnvironment(boolean failSafe, String cwd) {
-        new File(TermuxService.HOME_PATH).mkdirs();
-
-        if (cwd == null) cwd = TermuxService.HOME_PATH;
-
-        final String termEnv = "TERM=xterm-256color";
-        final String homeEnv = "HOME=" + TermuxService.HOME_PATH;
-        final String prefixEnv = "PREFIX=" + TermuxService.PREFIX_PATH;
-        final String androidRootEnv = "ANDROID_ROOT=" + System.getenv("ANDROID_ROOT");
-        final String androidDataEnv = "ANDROID_DATA=" + System.getenv("ANDROID_DATA");
-        // EXTERNAL_STORAGE is needed for /system/bin/am to work on at least
-        // Samsung S7 - see https://plus.google.com/110070148244138185604/posts/gp8Lk3aCGp3.
-        final String externalStorageEnv = "EXTERNAL_STORAGE=" + System.getenv("EXTERNAL_STORAGE");
-        String[] env;
-        if (failSafe) {
-            // Keep the default path so that system binaries can be used in the failsafe session.
-            final String pathEnv = "PATH=" + System.getenv("PATH");
-            return new String[]{termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv};
-        } else {
-            final String ps1Env = "PS1=$ ";
-            final String ldEnv = "LD_LIBRARY_PATH=" + TermuxService.PREFIX_PATH + "/lib";
-            final String langEnv = "LANG=en_US.UTF-8";
-            final String pathEnv = "PATH=" + TermuxService.PREFIX_PATH + "/bin:" + TermuxService.PREFIX_PATH + "/bin/applets";
-            final String pwdEnv = "PWD=" + cwd;
-
-            return new String[]{termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv};
-        }
-    }
-
-}

app/src/main/java/com/termux/app/ExtraKeysView.java

@@ -1,177 +0,0 @@
-package com.termux.app;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.view.Gravity;
-import android.view.KeyEvent;
-import android.view.View;
-import android.widget.Button;
-import android.widget.GridLayout;
-import android.widget.ToggleButton;
-
-import com.termux.R;
-import com.termux.terminal.TerminalSession;
-import com.termux.view.TerminalView;
-
-/**
- * A view showing extra keys (such as Escape, Ctrl, Alt) not normally available on an Android soft
- * keyboard.
- */
-public final class ExtraKeysView extends GridLayout {
-
-    private static final int TEXT_COLOR = 0xFFFFFFFF;
-
-    public ExtraKeysView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-
-        reload();
-    }
-
-    static void sendKey(View view, String keyName) {
-        int keyCode = 0;
-        String chars = null;
-        switch (keyName) {
-            case "ESC":
-                keyCode = KeyEvent.KEYCODE_ESCAPE;
-                break;
-            case "TAB":
-                keyCode = KeyEvent.KEYCODE_TAB;
-                break;
-            case "▲":
-                keyCode = KeyEvent.KEYCODE_DPAD_UP;
-                break;
-            case "◀":
-                keyCode = KeyEvent.KEYCODE_DPAD_LEFT;
-                break;
-            case "▶":
-                keyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
-                break;
-            case "▼":
-                keyCode = KeyEvent.KEYCODE_DPAD_DOWN;
-                break;
-            case "―":
-                chars = "-";
-                break;
-            default:
-                chars = keyName;
-        }
-
-        if (keyCode > 0) {
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
-            view.dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_UP, keyCode));
-        } else {
-            TerminalView terminalView = (TerminalView) view.findViewById(R.id.terminal_view);
-            TerminalSession session = terminalView.getCurrentSession();
-            if (session != null) session.write(chars);
-        }
-    }
-
-    private ToggleButton controlButton;
-    private ToggleButton altButton;
-    private ToggleButton fnButton;
-
-    public boolean readControlButton() {
-        if (controlButton.isPressed()) return true;
-        boolean result = controlButton.isChecked();
-        if (result) {
-            controlButton.setChecked(false);
-            controlButton.setTextColor(TEXT_COLOR);
-        }
-        return result;
-    }
-
-    public boolean readAltButton() {
-        if (altButton.isPressed()) return true;
-        boolean result = altButton.isChecked();
-        if (result) {
-            altButton.setChecked(false);
-            altButton.setTextColor(TEXT_COLOR);
-        }
-        return result;
-    }
-
-    public boolean readFnButton() {
-        if (fnButton.isPressed()) return true;
-        boolean result = fnButton.isChecked();
-        if (result) {
-            fnButton.setChecked(false);
-            fnButton.setTextColor(TEXT_COLOR);
-        }
-        return result;
-    }
-
-    void reload() {
-        altButton = controlButton = null;
-        removeAllViews();
-
-        String[][] buttons = {
-            {"ESC", "CTRL", "ALT", "TAB", "―", "/", "|"}
-        };
-
-        final int rows = buttons.length;
-        final int cols = buttons[0].length;
-
-        setRowCount(rows);
-        setColumnCount(cols);
-
-        for (int row = 0; row < rows; row++) {
-            for (int col = 0; col < cols; col++) {
-                final String buttonText = buttons[row][col];
-
-                Button button;
-                switch (buttonText) {
-                    case "CTRL":
-                        button = controlButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    case "ALT":
-                        button = altButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    case "FN":
-                        button = fnButton = new ToggleButton(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        button.setClickable(true);
-                        break;
-                    default:
-                        button = new Button(getContext(), null, android.R.attr.buttonBarButtonStyle);
-                        break;
-                }
-
-                button.setText(buttonText);
-                button.setTextColor(TEXT_COLOR);
-
-                final Button finalButton = button;
-                button.setOnClickListener(new OnClickListener() {
-                    @Override
-                    public void onClick(View v) {
-                        View root = getRootView();
-                        switch (buttonText) {
-                            case "CTRL":
-                            case "ALT":
-                            case "FN":
-                                ToggleButton self = (ToggleButton) finalButton;
-                                self.setChecked(self.isChecked());
-                                self.setTextColor(self.isChecked() ? 0xFF80DEEA : TEXT_COLOR);
-                                break;
-                            default:
-                                sendKey(root, buttonText);
-                                break;
-                        }
-                    }
-                });
-
-                GridLayout.LayoutParams param = new GridLayout.LayoutParams();
-                param.height = param.width = 0;
-                param.rightMargin = param.topMargin = 0;
-                param.setGravity(Gravity.LEFT);
-                float weight = "▲▼◀▶".contains(buttonText) ? 0.7f : 1.f;
-                param.columnSpec = GridLayout.spec(col, weight);
-                param.rowSpec = GridLayout.spec(row, 1.f);
-                button.setLayoutParams(param);
-
-                addView(button);
-            }
-        }
-    }
-
-}

app/src/main/java/com/termux/app/FullScreenHelper.java

@@ -1,67 +0,0 @@
-package com.termux.app;
-
-import android.graphics.Color;
-import android.graphics.drawable.ColorDrawable;
-import android.os.Build;
-import android.view.View;
-
-import com.termux.R;
-
-/**
- * Utility to manage full screen immersive mode.
- * <p/>
- * See https://code.google.com/p/android/issues/detail?id=5497
- */
-final class FullScreenHelper {
-
-    private boolean mEnabled = false;
-    final TermuxActivity mActivity;
-
-    public FullScreenHelper(TermuxActivity activity) {
-        this.mActivity = activity;
-    }
-
-    public void setImmersive(boolean enabled) {
-        if (enabled == mEnabled) return;
-        mEnabled = enabled;
-
-        View decorView = mActivity.getWindow().getDecorView();
-
-        if (enabled) {
-            decorView.setOnSystemUiVisibilityChangeListener
-                (new View.OnSystemUiVisibilityChangeListener() {
-                    @Override
-                    public void onSystemUiVisibilityChange(int visibility) {
-                        if ((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0) {
-                            if (mActivity.mSettings.isShowExtraKeys()) {
-                                mActivity.findViewById(R.id.viewpager).setVisibility(View.VISIBLE);
-                            }
-                            setImmersiveMode();
-                        } else {
-                            mActivity.findViewById(R.id.viewpager).setVisibility(View.GONE);
-                        }
-                    }
-                });
-            setImmersiveMode();
-        } else {
-            decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
-            decorView.setOnSystemUiVisibilityChangeListener(null);
-        }
-    }
-
-    private static boolean isColorLight(int color) {
-        double darkness = 1 - (0.299 * Color.red(color) + 0.587 * Color.green(color) + 0.114 * Color.blue(color)) / 255;
-        return darkness < 0.5;
-    }
-
-    void setImmersiveMode() {
-        int flags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
-            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
-            | View.SYSTEM_UI_FLAG_FULLSCREEN;
-        int color = ((ColorDrawable) mActivity.getWindow().getDecorView().getBackground()).getColor();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && isColorLight(color))
-            flags |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
-        mActivity.getWindow().getDecorView().setSystemUiVisibility(flags);
-    }
-
-}

app/src/main/java/com/termux/app/RunCommandService.java

@@ -0,0 +1,270 @@
+package com.termux.app;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Build;
+import android.os.IBinder;
+
+import com.termux.R;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.data.IntentUtils;
+import com.termux.shared.file.TermuxFileUtils;
+import com.termux.shared.file.filesystem.FileType;
+import com.termux.shared.models.errors.Errno;
+import com.termux.shared.models.errors.Error;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.RUN_COMMAND_SERVICE;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.app.utils.PluginUtils;
+import com.termux.shared.models.ExecutionCommand;
+
+/**
+ * A service that receives {@link RUN_COMMAND_SERVICE#ACTION_RUN_COMMAND} intent from third party apps and
+ * plugins that contains info on command execution and forwards the extras to {@link TermuxService}
+ * for the actual execution.
+ *
+ * Check https://github.com/termux/termux-app/wiki/RUN_COMMAND-Intent for more info.
+ */
+public class RunCommandService extends Service {
+
+    private static final String LOG_TAG = "RunCommandService";
+
+    class LocalBinder extends Binder {
+        public final RunCommandService service = RunCommandService.this;
+    }
+
+    private final IBinder mBinder = new RunCommandService.LocalBinder();
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    @Override
+    public void onCreate() {
+        Logger.logVerbose(LOG_TAG, "onCreate");
+        runStartForeground();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Logger.logDebug(LOG_TAG, "onStartCommand");
+
+        if (intent == null) return Service.START_NOT_STICKY;
+
+        // Run again in case service is already started and onCreate() is not called
+        runStartForeground();
+
+        ExecutionCommand executionCommand = new ExecutionCommand();
+        executionCommand.pluginAPIHelp = this.getString(R.string.error_run_command_service_api_help, RUN_COMMAND_SERVICE.RUN_COMMAND_API_HELP_URL);
+
+        Error error;
+        String errmsg;
+
+        // If invalid action passed, then just return
+        if (!RUN_COMMAND_SERVICE.ACTION_RUN_COMMAND.equals(intent.getAction())) {
+            errmsg = this.getString(R.string.error_run_command_service_invalid_intent_action, intent.getAction());
+            executionCommand.setStateFailed(Errno.ERRNO_FAILED.getCode(), errmsg);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return stopService();
+        }
+
+        String executableExtra = executionCommand.executable = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_COMMAND_PATH, null);
+        executionCommand.arguments = IntentUtils.getStringArrayExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_ARGUMENTS, null);
+
+        /*
+        * If intent was sent with `am` command, then normal comma characters may have been replaced
+        * with alternate characters if a normal comma existed in an argument itself to prevent it
+        * splitting into multiple arguments by `am` command.
+        * If `tudo` or `sudo` are used, then simply using their `-r` and `--comma-alternative` command
+        * options can be used without passing the below extras, but native supports is helpful if
+        * they are not being used.
+        * https://github.com/agnostic-apollo/tudo#passing-arguments-using-run_command-intent
+        * https://android.googlesource.com/platform/frameworks/base/+/21bdaf1/cmds/am/src/com/android/commands/am/Am.java#572
+        */
+        boolean replaceCommaAlternativeCharsInArguments = intent.getBooleanExtra(RUN_COMMAND_SERVICE.EXTRA_REPLACE_COMMA_ALTERNATIVE_CHARS_IN_ARGUMENTS, false);
+        if (replaceCommaAlternativeCharsInArguments) {
+            String commaAlternativeCharsInArguments = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_COMMA_ALTERNATIVE_CHARS_IN_ARGUMENTS, null);
+            if (commaAlternativeCharsInArguments == null)
+                commaAlternativeCharsInArguments = TermuxConstants.COMMA_ALTERNATIVE;
+            // Replace any commaAlternativeCharsInArguments characters with normal commas
+            DataUtils.replaceSubStringsInStringArrayItems(executionCommand.arguments, commaAlternativeCharsInArguments, TermuxConstants.COMMA_NORMAL);
+        }
+
+        executionCommand.stdin = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_STDIN, null);
+        executionCommand.workingDirectory = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_WORKDIR, null);
+        executionCommand.inBackground = intent.getBooleanExtra(RUN_COMMAND_SERVICE.EXTRA_BACKGROUND, false);
+        executionCommand.backgroundCustomLogLevel = IntentUtils.getIntegerExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_BACKGROUND_CUSTOM_LOG_LEVEL, null);
+        executionCommand.sessionAction = intent.getStringExtra(RUN_COMMAND_SERVICE.EXTRA_SESSION_ACTION);
+        executionCommand.commandLabel = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_COMMAND_LABEL, "RUN_COMMAND Execution Intent Command");
+        executionCommand.commandDescription = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_COMMAND_DESCRIPTION, null);
+        executionCommand.commandHelp = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_COMMAND_HELP, null);
+        executionCommand.isPluginExecutionCommand = true;
+        executionCommand.resultConfig.resultPendingIntent = intent.getParcelableExtra(RUN_COMMAND_SERVICE.EXTRA_PENDING_INTENT);
+        executionCommand.resultConfig.resultDirectoryPath = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_RESULT_DIRECTORY, null);
+        if (executionCommand.resultConfig.resultDirectoryPath != null) {
+            executionCommand.resultConfig.resultSingleFile = intent.getBooleanExtra(RUN_COMMAND_SERVICE.EXTRA_RESULT_SINGLE_FILE, false);
+            executionCommand.resultConfig.resultFileBasename = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_RESULT_FILE_BASENAME, null);
+            executionCommand.resultConfig.resultFileOutputFormat = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_RESULT_FILE_OUTPUT_FORMAT, null);
+            executionCommand.resultConfig.resultFileErrorFormat = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_RESULT_FILE_ERROR_FORMAT, null);
+            executionCommand.resultConfig.resultFilesSuffix = IntentUtils.getStringExtraIfSet(intent, RUN_COMMAND_SERVICE.EXTRA_RESULT_FILES_SUFFIX, null);
+        }
+
+        // If "allow-external-apps" property to not set to "true", then just return
+        // We enable force notifications if "allow-external-apps" policy is violated so that the
+        // user knows someone tried to run a command in termux context, since it may be malicious
+        // app or imported (tasker) plugin project and not the user himself. If a pending intent is
+        // also sent, then its creator is also logged and shown.
+        errmsg = PluginUtils.checkIfAllowExternalAppsPolicyIsViolated(this, LOG_TAG);
+        if (errmsg != null) {
+            executionCommand.setStateFailed(Errno.ERRNO_FAILED.getCode(), errmsg);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, true);
+            return stopService();
+        }
+
+
+
+        // If executable is null or empty, then exit here instead of getting canonical path which would expand to "/"
+        if (executionCommand.executable == null || executionCommand.executable.isEmpty()) {
+            errmsg  = this.getString(R.string.error_run_command_service_mandatory_extra_missing, RUN_COMMAND_SERVICE.EXTRA_COMMAND_PATH);
+            executionCommand.setStateFailed(Errno.ERRNO_FAILED.getCode(), errmsg);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return stopService();
+        }
+
+        // Get canonical path of executable
+        executionCommand.executable = TermuxFileUtils.getCanonicalPath(executionCommand.executable, null, true);
+
+        // If executable is not a regular file, or is not readable or executable, then just return
+        // Setting of missing read and execute permissions is not done
+        error = FileUtils.validateRegularFileExistenceAndPermissions("executable", executionCommand.executable, null,
+            FileUtils.APP_EXECUTABLE_FILE_PERMISSIONS, true, true,
+            false);
+        if (error != null) {
+            executionCommand.setStateFailed(error);
+            PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+            return stopService();
+        }
+
+
+
+        // If workingDirectory is not null or empty
+        if (executionCommand.workingDirectory != null && !executionCommand.workingDirectory.isEmpty()) {
+            // Get canonical path of workingDirectory
+            executionCommand.workingDirectory = TermuxFileUtils.getCanonicalPath(executionCommand.workingDirectory, null, true);
+
+            // If workingDirectory is not a directory, or is not readable or writable, then just return
+            // Creation of missing directory and setting of read, write and execute permissions are only done if workingDirectory is
+            // under allowed termux working directory paths.
+            // We try to set execute permissions, but ignore if they are missing, since only read and write permissions are required
+            // for working directories.
+            error = TermuxFileUtils.validateDirectoryFileExistenceAndPermissions("working", executionCommand.workingDirectory,
+                true, true, true,
+                false, true);
+            if (error != null) {
+                executionCommand.setStateFailed(error);
+                PluginUtils.processPluginExecutionCommandError(this, LOG_TAG, executionCommand, false);
+                return stopService();
+            }
+        }
+
+        // If the executable passed as the extra was an applet for coreutils/busybox, then we must
+        // use it instead of the canonical path above since otherwise arguments would be passed to
+        // coreutils/busybox instead and command would fail. Broken symlinks would already have been
+        // validated so it should be fine to use it.
+        executableExtra = TermuxFileUtils.getExpandedTermuxPath(executableExtra);
+        if (FileUtils.getFileType(executableExtra, false) == FileType.SYMLINK) {
+            Logger.logVerbose(LOG_TAG, "The executableExtra path \"" + executableExtra + "\" is a symlink so using it instead of the canonical path \"" + executionCommand.executable + "\"");
+            executionCommand.executable = executableExtra;
+        }
+
+        executionCommand.executableUri = new Uri.Builder().scheme(TERMUX_SERVICE.URI_SCHEME_SERVICE_EXECUTE).path(executionCommand.executable).build();
+
+        Logger.logVerboseExtended(LOG_TAG, executionCommand.toString());
+
+        // Create execution intent with the action TERMUX_SERVICE#ACTION_SERVICE_EXECUTE to be sent to the TERMUX_SERVICE
+        Intent execIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, executionCommand.executableUri);
+        execIntent.setClass(this, TermuxService.class);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, executionCommand.arguments);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_STDIN, executionCommand.stdin);
+        if (executionCommand.workingDirectory != null && !executionCommand.workingDirectory.isEmpty()) execIntent.putExtra(TERMUX_SERVICE.EXTRA_WORKDIR, executionCommand.workingDirectory);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_BACKGROUND, executionCommand.inBackground);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_BACKGROUND_CUSTOM_LOG_LEVEL, DataUtils.getStringFromInteger(executionCommand.backgroundCustomLogLevel, null));
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_SESSION_ACTION, executionCommand.sessionAction);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_LABEL, executionCommand.commandLabel);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_DESCRIPTION, executionCommand.commandDescription);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_COMMAND_HELP, executionCommand.commandHelp);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_PLUGIN_API_HELP, executionCommand.pluginAPIHelp);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_PENDING_INTENT, executionCommand.resultConfig.resultPendingIntent);
+        execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_DIRECTORY, executionCommand.resultConfig.resultDirectoryPath);
+        if (executionCommand.resultConfig.resultDirectoryPath != null) {
+            execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_SINGLE_FILE, executionCommand.resultConfig.resultSingleFile);
+            execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_FILE_BASENAME, executionCommand.resultConfig.resultFileBasename);
+            execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_FILE_OUTPUT_FORMAT, executionCommand.resultConfig.resultFileOutputFormat);
+            execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_FILE_ERROR_FORMAT, executionCommand.resultConfig.resultFileErrorFormat);
+            execIntent.putExtra(TERMUX_SERVICE.EXTRA_RESULT_FILES_SUFFIX, executionCommand.resultConfig.resultFilesSuffix);
+        }
+
+        // Start TERMUX_SERVICE and pass it execution intent
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            this.startForegroundService(execIntent);
+        } else {
+            this.startService(execIntent);
+        }
+
+        return stopService();
+    }
+
+    private int stopService() {
+        runStopForeground();
+        return Service.START_NOT_STICKY;
+    }
+
+    private void runStartForeground() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            setupNotificationChannel();
+            startForeground(TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_ID, buildNotification());
+        }
+    }
+
+    private void runStopForeground() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            stopForeground(true);
+        }
+    }
+
+    private Notification buildNotification() {
+        // Build the notification
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(this,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_LOW,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_NAME, null, null,
+            null, null, NotificationUtils.NOTIFICATION_MODE_SILENT);
+        if (builder == null)  return null;
+
+        // No need to show a timestamp:
+        builder.setShowWhen(false);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_service_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        return builder.build();
+    }
+
+    private void setupNotificationChannel() {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return;
+
+        NotificationUtils.setupNotificationChannel(this, TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_RUN_COMMAND_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_LOW);
+    }
+
+}

app/src/main/java/com/termux/app/TermuxApplication.java

@@ -0,0 +1,29 @@
+package com.termux.app;
+
+import android.app.Application;
+
+import com.termux.shared.crash.TermuxCrashUtils;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.logger.Logger;
+
+
+public class TermuxApplication extends Application {
+    public void onCreate() {
+        super.onCreate();
+
+        // Set crash handler for the app
+        TermuxCrashUtils.setCrashHandler(this);
+
+        // Set log level for the app
+        setLogLevel();
+    }
+
+    private void setLogLevel() {
+        // Load the log level from shared preferences and set it to the {@link Logger.CURRENT_LOG_LEVEL}
+        TermuxAppSharedPreferences preferences = TermuxAppSharedPreferences.build(getApplicationContext());
+        if (preferences == null) return;
+        preferences.setLogLevel(null, preferences.getLogLevel());
+        Logger.logDebug("Starting Application");
+    }
+}
+

app/src/main/java/com/termux/app/TermuxInstaller.java

@@ -4,46 +4,52 @@ import android.app.Activity;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnClickListener;
-import android.content.DialogInterface.OnDismissListener;
-import android.os.Build;
 import android.os.Environment;
-import android.os.UserManager;
 import android.system.Os;
-import android.util.Log;
 import android.util.Pair;
 import android.view.WindowManager;
 
 import com.termux.R;
-import com.termux.terminal.EmulatorDebug;
+import com.termux.app.utils.CrashUtils;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.file.TermuxFileUtils;
+import com.termux.shared.interact.MessageDialogUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.models.errors.Error;
+import com.termux.shared.packages.PackageUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxUtils;
 
 import java.io.BufferedReader;
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.InputStreamReader;
-import java.net.MalformedURLException;
-import java.net.URL;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
+import static com.termux.shared.termux.TermuxConstants.TERMUX_PREFIX_DIR;
+import static com.termux.shared.termux.TermuxConstants.TERMUX_PREFIX_DIR_PATH;
+import static com.termux.shared.termux.TermuxConstants.TERMUX_STAGING_PREFIX_DIR;
+import static com.termux.shared.termux.TermuxConstants.TERMUX_STAGING_PREFIX_DIR_PATH;
+
 /**
  * Install the Termux bootstrap packages if necessary by following the below steps:
  * <p/>
  * (1) If $PREFIX already exist, assume that it is correct and be done. Note that this relies on that we do not create a
- * broken $PREFIX folder below.
+ * broken $PREFIX directory below.
  * <p/>
  * (2) A progress dialog is shown with "Installing..." message and a spinner.
  * <p/>
- * (3) A staging folder, $STAGING_PREFIX, is {@link #deleteFolder(File)} if left over from broken installation below.
+ * (3) A staging directory, $STAGING_PREFIX, is cleared if left over from broken installation below.
  * <p/>
- * (4) The architecture is determined and an appropriate bootstrap zip url is determined in {@link #determineZipUrl()}.
+ * (4) The zip file is loaded from a shared library.
  * <p/>
  * (5) The zip, containing entries relative to the $PREFIX, is is downloaded and extracted by a zip input stream
- * continously encountering zip file entries:
+ * continuously encountering zip file entries:
  * <p/>
  * (5.1) If the zip entry encountered is SYMLINKS.txt, go through it and remember all symlinks to setup.
  * <p/>
@@ -51,46 +57,99 @@ import java.util.zip.ZipInputStream;
  */
 final class TermuxInstaller {
 
-    /** Performs setup if necessary. */
-    static void setupIfNeeded(final Activity activity, final Runnable whenDone) {
+    private static final String LOG_TAG = "TermuxInstaller";
+
+    /** Performs bootstrap setup if necessary. */
+    static void setupBootstrapIfNeeded(final Activity activity, final Runnable whenDone) {
+        String bootstrapErrorMessage;
+        Error filesDirectoryAccessibleError;
+
+        // This will also call Context.getFilesDir(), which should ensure that termux files directory
+        // is created if it does not already exist
+        filesDirectoryAccessibleError = TermuxFileUtils.isTermuxFilesDirectoryAccessible(activity, true, true);
+        boolean isFilesDirectoryAccessible = filesDirectoryAccessibleError == null;
+
         // Termux can only be run as the primary user (device owner) since only that
         // account has the expected file system paths. Verify that:
-        UserManager um = (UserManager) activity.getSystemService(Context.USER_SERVICE);
-        boolean isPrimaryUser = um.getSerialNumberForUser(android.os.Process.myUserHandle()) == 0;
-        if (!isPrimaryUser) {
-            new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_not_primary_user_message)
-                .setOnDismissListener(new OnDismissListener() {
-                    @Override
-                    public void onDismiss(DialogInterface dialog) {
-                        System.exit(0);
-                    }
-                }).setPositiveButton(android.R.string.ok, null).show();
+        if (!PackageUtils.isCurrentUserThePrimaryUser(activity)) {
+            bootstrapErrorMessage = activity.getString(R.string.bootstrap_error_not_primary_user_message, MarkdownUtils.getMarkdownCodeForString(TERMUX_PREFIX_DIR_PATH, false));
+            Logger.logError(LOG_TAG, "isFilesDirectoryAccessible: " + isFilesDirectoryAccessible);
+            Logger.logError(LOG_TAG, bootstrapErrorMessage);
+            sendBootstrapCrashReportNotification(activity, bootstrapErrorMessage);
+            MessageDialogUtils.exitAppWithErrorMessage(activity,
+                activity.getString(R.string.bootstrap_error_title),
+                bootstrapErrorMessage);
             return;
         }
 
-        final File PREFIX_FILE = new File(TermuxService.PREFIX_PATH);
-        if (PREFIX_FILE.isDirectory()) {
-            whenDone.run();
+        if (!isFilesDirectoryAccessible) {
+            bootstrapErrorMessage = Error.getMinimalErrorString(filesDirectoryAccessibleError) + "\nTERMUX_FILES_DIR: " + MarkdownUtils.getMarkdownCodeForString(TermuxConstants.TERMUX_FILES_DIR_PATH, false);
+            Logger.logError(LOG_TAG, bootstrapErrorMessage);
+            sendBootstrapCrashReportNotification(activity, bootstrapErrorMessage);
+            MessageDialogUtils.showMessage(activity,
+                activity.getString(R.string.bootstrap_error_title),
+                bootstrapErrorMessage, null);
             return;
         }
 
+        // If prefix directory exists, even if its a symlink to a valid directory and symlink is not broken/dangling
+        if (FileUtils.directoryFileExists(TERMUX_PREFIX_DIR_PATH, true)) {
+            File[] PREFIX_FILE_LIST =  TERMUX_PREFIX_DIR.listFiles();
+            // If prefix directory is empty or only contains the tmp directory
+            if(PREFIX_FILE_LIST == null || PREFIX_FILE_LIST.length == 0 || (PREFIX_FILE_LIST.length == 1 && TermuxConstants.TERMUX_TMP_PREFIX_DIR_PATH.equals(PREFIX_FILE_LIST[0].getAbsolutePath()))) {
+                Logger.logInfo(LOG_TAG, "The termux prefix directory \"" + TERMUX_PREFIX_DIR_PATH + "\" exists but is empty or only contains the tmp directory.");
+            } else {
+                whenDone.run();
+                return;
+            }
+        } else if (FileUtils.fileExists(TERMUX_PREFIX_DIR_PATH, false)) {
+            Logger.logInfo(LOG_TAG, "The termux prefix directory \"" + TERMUX_PREFIX_DIR_PATH + "\" does not exist but another file exists at its destination.");
+        }
+
         final ProgressDialog progress = ProgressDialog.show(activity, null, activity.getString(R.string.bootstrap_installer_body), true, false);
         new Thread() {
             @Override
             public void run() {
                 try {
-                    final String STAGING_PREFIX_PATH = TermuxService.FILES_PATH + "/usr-staging";
-                    final File STAGING_PREFIX_FILE = new File(STAGING_PREFIX_PATH);
+                    Logger.logInfo(LOG_TAG, "Installing " + TermuxConstants.TERMUX_APP_NAME + " bootstrap packages.");
 
-                    if (STAGING_PREFIX_FILE.exists()) {
-                        deleteFolder(STAGING_PREFIX_FILE);
+                    Error error;
+
+                    // Delete prefix staging directory or any file at its destination
+                    error = FileUtils.deleteFile("termux prefix staging directory", TERMUX_STAGING_PREFIX_DIR_PATH, true);
+                    if (error != null) {
+                        showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                        return;
                     }
 
+                    // Delete prefix directory or any file at its destination
+                    error = FileUtils.deleteFile("termux prefix directory", TERMUX_PREFIX_DIR_PATH, true);
+                    if (error != null) {
+                        showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                        return;
+                    }
+
+                    // Create prefix staging directory if it does not already exist and set required permissions
+                    error = TermuxFileUtils.isTermuxPrefixStagingDirectoryAccessible(true, true);
+                    if (error != null) {
+                        showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                        return;
+                    }
+
+                    // Create prefix directory if it does not already exist and set required permissions
+                    error = TermuxFileUtils.isTermuxPrefixDirectoryAccessible(true, true);
+                    if (error != null) {
+                        showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                        return;
+                    }
+
+                    Logger.logInfo(LOG_TAG, "Extracting bootstrap zip to prefix staging directory \"" + TERMUX_STAGING_PREFIX_DIR_PATH + "\".");
+
                     final byte[] buffer = new byte[8096];
                     final List<Pair<String, String>> symlinks = new ArrayList<>(50);
 
-                    final URL zipUrl = determineZipUrl();
-                    try (ZipInputStream zipInput = new ZipInputStream(zipUrl.openStream())) {
+                    final byte[] zipBytes = loadZipBytes();
+                    try (ZipInputStream zipInput = new ZipInputStream(new ByteArrayInputStream(zipBytes))) {
                         ZipEntry zipEntry;
                         while ((zipEntry = zipInput.getNextEntry()) != null) {
                             if (zipEntry.getName().equals("SYMLINKS.txt")) {
@@ -101,22 +160,34 @@ final class TermuxInstaller {
                                     if (parts.length != 2)
                                         throw new RuntimeException("Malformed symlink line: " + line);
                                     String oldPath = parts[0];
-                                    String newPath = STAGING_PREFIX_PATH + "/" + parts[1];
+                                    String newPath = TERMUX_STAGING_PREFIX_DIR_PATH + "/" + parts[1];
                                     symlinks.add(Pair.create(oldPath, newPath));
+
+                                    error = ensureDirectoryExists(new File(newPath).getParentFile());
+                                    if (error != null) {
+                                        showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                                        return;
+                                    }
                                 }
                             } else {
                                 String zipEntryName = zipEntry.getName();
-                                File targetFile = new File(STAGING_PREFIX_PATH, zipEntryName);
-                                if (zipEntry.isDirectory()) {
-                                    if (!targetFile.mkdirs())
-                                        throw new RuntimeException("Failed to create directory: " + targetFile.getAbsolutePath());
-                                } else {
+                                File targetFile = new File(TERMUX_STAGING_PREFIX_DIR_PATH, zipEntryName);
+                                boolean isDirectory = zipEntry.isDirectory();
+
+                                error = ensureDirectoryExists(isDirectory ? targetFile : targetFile.getParentFile());
+                                if (error != null) {
+                                    showBootstrapErrorDialog(activity, whenDone, Error.getErrorMarkdownString(error));
+                                    return;
+                                }
+
+                                if (!isDirectory) {
                                     try (FileOutputStream outStream = new FileOutputStream(targetFile)) {
                                         int readBytes;
                                         while ((readBytes = zipInput.read(buffer)) != -1)
                                             outStream.write(buffer, 0, readBytes);
                                     }
-                                    if (zipEntryName.startsWith("bin/") || zipEntryName.startsWith("libexec") || zipEntryName.startsWith("lib/apt/methods")) {
+                                    if (zipEntryName.startsWith("bin/") || zipEntryName.startsWith("libexec") ||
+                                        zipEntryName.startsWith("lib/apt/apt-helper") || zipEntryName.startsWith("lib/apt/methods")) {
                                         //noinspection OctalInteger
                                         Os.chmod(targetFile.getAbsolutePath(), 0700);
                                     }
@@ -131,50 +202,24 @@ final class TermuxInstaller {
                         Os.symlink(symlink.first, symlink.second);
                     }
 
-                    if (!STAGING_PREFIX_FILE.renameTo(PREFIX_FILE)) {
-                        throw new RuntimeException("Unable to rename staging folder");
+                    Logger.logInfo(LOG_TAG, "Moving termux prefix staging to prefix directory.");
+
+                    if (!TERMUX_STAGING_PREFIX_DIR.renameTo(TERMUX_PREFIX_DIR)) {
+                        throw new RuntimeException("Moving termux prefix staging to prefix directory failed");
                     }
 
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            whenDone.run();
-                        }
-                    });
+                    Logger.logInfo(LOG_TAG, "Bootstrap packages installed successfully.");
+                    activity.runOnUiThread(whenDone);
+
                 } catch (final Exception e) {
-                    Log.e(EmulatorDebug.LOG_TAG, "Bootstrap error", e);
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            try {
-                                new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
-                                    .setNegativeButton(R.string.bootstrap_error_abort, new OnClickListener() {
-                                        @Override
-                                        public void onClick(DialogInterface dialog, int which) {
-                                            dialog.dismiss();
-                                            activity.finish();
-                                        }
-                                    }).setPositiveButton(R.string.bootstrap_error_try_again, new OnClickListener() {
-                                    @Override
-                                    public void onClick(DialogInterface dialog, int which) {
-                                        dialog.dismiss();
-                                        TermuxInstaller.setupIfNeeded(activity, whenDone);
-                                    }
-                                }).show();
-                            } catch (WindowManager.BadTokenException e) {
-                                // Activity already dismissed - ignore.
-                            }
-                        }
-                    });
+                    showBootstrapErrorDialog(activity, whenDone, Logger.getStackTracesMarkdownString(null, Logger.getStackTracesStringArray(e)));
+
                 } finally {
-                    activity.runOnUiThread(new Runnable() {
-                        @Override
-                        public void run() {
-                            try {
-                                progress.dismiss();
-                            } catch (RuntimeException e) {
-                                // Activity already dismissed - ignore.
-                            }
+                    activity.runOnUiThread(() -> {
+                        try {
+                            progress.dismiss();
+                        } catch (RuntimeException e) {
+                            // Activity already dismissed - ignore.
                         }
                     });
                 }
@@ -182,58 +227,57 @@ final class TermuxInstaller {
         }.start();
     }
 
-    /** Get bootstrap zip url for this systems cpu architecture. */
-    static URL determineZipUrl() throws MalformedURLException {
-        String termuxArch = null;
-        // Note that we cannot use System.getProperty("os.arch") since that may give e.g. "aarch64"
-        // while a 64-bit runtime may not be installed (like on the Samsung Galaxy S5 Neo).
-        // Instead we search through the supported abi:s on the device, see:
-        // http://developer.android.com/ndk/guides/abis.html
-        // Note that we search for abi:s in preferred order, and want to avoid installing arm on
-        // an x86 system where arm emulation is available.
-        final String[] androidArchNames = {"arm64-v8a", "x86_64", "x86", "armeabi-v7a"};
-        final String[] termuxArchNames = {"aarch64", "x86_64", "i686", "arm"};
+    public static void showBootstrapErrorDialog(Activity activity, Runnable whenDone, String message) {
+        Logger.logErrorExtended(LOG_TAG, "Bootstrap Error:\n" + message);
 
-        final List<String> supportedArches = Arrays.asList(Build.SUPPORTED_ABIS);
-        for (int i = 0; i < termuxArchNames.length; i++) {
-            if (supportedArches.contains(androidArchNames[i])) {
-                termuxArch = termuxArchNames[i];
-                break;
+        // Send a notification with the exception so that the user knows why bootstrap setup failed
+        sendBootstrapCrashReportNotification(activity, message);
+
+        activity.runOnUiThread(() -> {
+            try {
+                new AlertDialog.Builder(activity).setTitle(R.string.bootstrap_error_title).setMessage(R.string.bootstrap_error_body)
+                    .setNegativeButton(R.string.bootstrap_error_abort, (dialog, which) -> {
+                        dialog.dismiss();
+                        activity.finish();
+                    })
+                    .setPositiveButton(R.string.bootstrap_error_try_again, (dialog, which) -> {
+                        dialog.dismiss();
+                        FileUtils.deleteFile("termux prefix directory", TERMUX_PREFIX_DIR_PATH, true);
+                        TermuxInstaller.setupBootstrapIfNeeded(activity, whenDone);
+                    }).show();
+            } catch (WindowManager.BadTokenException e1) {
+                // Activity already dismissed - ignore.
             }
-        }
-
-        return new URL("https://termux.net/bootstrap/bootstrap-" + termuxArch + ".zip");
+        });
     }
 
-    /** Delete a folder and all its content or throw. */
-    static void deleteFolder(File fileOrDirectory) {
-        File[] children = fileOrDirectory.listFiles();
-        if (children != null) {
-            for (File child : children) {
-                deleteFolder(child);
-            }
-        }
-        if (!fileOrDirectory.delete()) {
-            throw new RuntimeException("Unable to delete " + (fileOrDirectory.isDirectory() ? "directory " : "file ") + fileOrDirectory.getAbsolutePath());
-        }
+    private static void sendBootstrapCrashReportNotification(Activity activity, String message) {
+        CrashUtils.sendCrashReportNotification(activity, LOG_TAG,
+            "## Bootstrap Error\n\n" + message + "\n\n" +
+                TermuxUtils.getTermuxDebugMarkdownString(activity),
+            true, true);
     }
 
-    public static void setupStorageSymlinks(final Context context) {
+    static void setupStorageSymlinks(final Context context) {
         final String LOG_TAG = "termux-storage";
+
+        Logger.logInfo(LOG_TAG, "Setting up storage symlinks.");
+
         new Thread() {
             public void run() {
                 try {
-                    File storageDir = new File(TermuxService.HOME_PATH, "storage");
+                    Error error;
+                    File storageDir = TermuxConstants.TERMUX_STORAGE_HOME_DIR;
 
-                    if (storageDir.exists() && !storageDir.delete()) {
-                        Log.e(LOG_TAG, "Could not delete old $HOME/storage");
+                    error = FileUtils.clearDirectory("~/storage", storageDir.getAbsolutePath());
+                    if (error != null) {
+                        Logger.logErrorAndShowToast(context, LOG_TAG, error.getMessage());
+                        Logger.logErrorExtended(LOG_TAG, "Setup Storage Error\n" + error.toString());
+                        CrashUtils.sendCrashReportNotification(context, LOG_TAG, "## Setup Storage Error\n\n" + Error.getErrorMarkdownString(error), true, true);
                         return;
                     }
 
-                    if (!storageDir.mkdirs()) {
-                        Log.e(LOG_TAG, "Unable to mkdirs() for $HOME/storage");
-                        return;
-                    }
+                    Logger.logInfo(LOG_TAG, "Setting up storage symlinks at ~/storage/shared, ~/storage/downloads, ~/storage/dcim, ~/storage/pictures, ~/storage/music and ~/storage/movies for directories in \"" + Environment.getExternalStorageDirectory().getAbsolutePath() + "\".");
 
                     File sharedDir = Environment.getExternalStorageDirectory();
                     Os.symlink(sharedDir.getAbsolutePath(), new File(storageDir, "shared").getAbsolutePath());
@@ -254,15 +298,36 @@ final class TermuxInstaller {
                     Os.symlink(moviesDir.getAbsolutePath(), new File(storageDir, "movies").getAbsolutePath());
 
                     final File[] dirs = context.getExternalFilesDirs(null);
-                    if (dirs != null && dirs.length >= 2) {
-                        final File externalDir = dirs[1];
-                        Os.symlink(externalDir.getAbsolutePath(), new File(storageDir, "external").getAbsolutePath());
+                    if (dirs != null && dirs.length > 1) {
+                        for (int i = 1; i < dirs.length; i++) {
+                            File dir = dirs[i];
+                            if (dir == null) continue;
+                            String symlinkName = "external-" + i;
+                            Logger.logInfo(LOG_TAG, "Setting up storage symlinks at ~/storage/" + symlinkName + " for \"" + dir.getAbsolutePath() + "\".");
+                            Os.symlink(dir.getAbsolutePath(), new File(storageDir, symlinkName).getAbsolutePath());
+                        }
                     }
+
+                    Logger.logInfo(LOG_TAG, "Storage symlinks created successfully.");
                 } catch (Exception e) {
-                    Log.e(LOG_TAG, "Error setting up link", e);
+                    Logger.logErrorAndShowToast(context, LOG_TAG, e.getMessage());
+                    Logger.logStackTraceWithMessage(LOG_TAG, "Setup Storage Error: Error setting up link", e);
+                    CrashUtils.sendCrashReportNotification(context, LOG_TAG, "## Setup Storage Error\n\n" + Logger.getStackTracesMarkdownString(null, Logger.getStackTracesStringArray(e)), true, true);
                 }
             }
         }.start();
     }
 
+    private static Error ensureDirectoryExists(File directory) {
+        return FileUtils.createDirectoryFile(directory.getAbsolutePath());
+    }
+
+    public static byte[] loadZipBytes() {
+        // Only load the shared library when necessary to save memory usage.
+        System.loadLibrary("termux-bootstrap");
+        return getZip();
+    }
+
+    public static native byte[] getZip();
+
 }

app/src/main/java/com/termux/app/TermuxKeyListener.java

@@ -1,277 +0,0 @@
-package com.termux.app;
-
-import android.content.Context;
-import android.media.AudioManager;
-import android.support.v4.widget.DrawerLayout;
-import android.util.Log;
-import android.view.Gravity;
-import android.view.InputDevice;
-import android.view.KeyEvent;
-import android.view.MotionEvent;
-import android.view.inputmethod.InputMethodManager;
-
-import com.termux.terminal.KeyHandler;
-import com.termux.terminal.TerminalEmulator;
-import com.termux.terminal.TerminalSession;
-import com.termux.view.TerminalKeyListener;
-
-import java.util.List;
-
-public final class TermuxKeyListener implements TerminalKeyListener {
-
-    final TermuxActivity mActivity;
-
-    /** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
-    boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
-
-    public TermuxKeyListener(TermuxActivity activity) {
-        this.mActivity = activity;
-    }
-
-    @Override
-    public float onScale(float scale) {
-        if (scale < 0.9f || scale > 1.1f) {
-            boolean increase = scale > 1.f;
-            mActivity.changeFontSize(increase);
-            return 1.0f;
-        }
-        return scale;
-    }
-
-    @Override
-    public void onSingleTapUp(MotionEvent e) {
-        InputMethodManager mgr = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
-        mgr.showSoftInput(mActivity.mTerminalView, InputMethodManager.SHOW_IMPLICIT);
-    }
-
-    @Override
-    public boolean shouldBackButtonBeMappedToEscape() {
-        return mActivity.mSettings.mBackIsEscape;
-    }
-
-    @Override
-    public void copyModeChanged(boolean copyMode) {
-        // Disable drawer while copying.
-        mActivity.getDrawer().setDrawerLockMode(copyMode ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
-    }
-
-    @Override
-    public boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession currentSession) {
-        if (handleVirtualKeys(keyCode, e, true)) return true;
-
-        if (keyCode == KeyEvent.KEYCODE_ENTER && !currentSession.isRunning()) {
-            mActivity.removeFinishedSession(currentSession);
-            return true;
-        } else if (e.isCtrlPressed() && e.isShiftPressed()) {
-            // Get the unmodified code point:
-            int unicodeChar = e.getUnicodeChar(0);
-
-            if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN || unicodeChar == 'n'/* next */) {
-                mActivity.switchToSession(true);
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_UP || unicodeChar == 'p' /* previous */) {
-                mActivity.switchToSession(false);
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
-                mActivity.getDrawer().openDrawer(Gravity.LEFT);
-            } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
-                mActivity.getDrawer().closeDrawers();
-            } else if (unicodeChar == 'f'/* full screen */) {
-                mActivity.toggleImmersive();
-            } else if (unicodeChar == 'k'/* keyboard */) {
-                InputMethodManager imm = (InputMethodManager) mActivity.getSystemService(Context.INPUT_METHOD_SERVICE);
-                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);
-            } else if (unicodeChar == 'm'/* menu */) {
-                mActivity.mTerminalView.showContextMenu();
-            } else if (unicodeChar == 'r'/* rename */) {
-                mActivity.renameSession(currentSession);
-            } else if (unicodeChar == 'c'/* create */) {
-                mActivity.addNewSession(false, null);
-            } else if (unicodeChar == 'u' /* urls */) {
-                mActivity.showUrlSelection();
-            } else if (unicodeChar == 'v') {
-                mActivity.doPaste();
-            } else if (unicodeChar == '+' || e.getUnicodeChar(KeyEvent.META_SHIFT_ON) == '+') {
-                // We also check for the shifted char here since shift may be required to produce '+',
-                // see https://github.com/termux/termux-api/issues/2
-                mActivity.changeFontSize(true);
-            } else if (unicodeChar == '-') {
-                mActivity.changeFontSize(false);
-            } else if (unicodeChar >= '1' && unicodeChar <= '9') {
-                int num = unicodeChar - '1';
-                TermuxService service = mActivity.mTermService;
-                if (service.getSessions().size() > num)
-                    mActivity.switchToSession(service.getSessions().get(num));
-            }
-            return true;
-        }
-
-        return false;
-
-    }
-
-    @Override
-    public boolean onKeyUp(int keyCode, KeyEvent e) {
-        return handleVirtualKeys(keyCode, e, false);
-    }
-
-    @Override
-    public boolean readControlKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readControlButton()) || mVirtualControlKeyDown;
-    }
-
-    @Override
-    public boolean readAltKey() {
-        return (mActivity.mExtraKeysView != null && mActivity.mExtraKeysView.readAltButton());
-    }
-
-    @Override
-    public boolean onCodePoint(final int codePoint, boolean ctrlDown, TerminalSession session) {
-        if (mVirtualFnKeyDown) {
-            int resultingKeyCode = -1;
-            int resultingCodePoint = -1;
-            boolean altDown = false;
-            int lowerCase = Character.toLowerCase(codePoint);
-            switch (lowerCase) {
-                // Arrow keys.
-                case 'w':
-                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_UP;
-                    break;
-                case 'a':
-                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_LEFT;
-                    break;
-                case 's':
-                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_DOWN;
-                    break;
-                case 'd':
-                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
-                    break;
-
-                // Page up and down.
-                case 'p':
-                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_UP;
-                    break;
-                case 'n':
-                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_DOWN;
-                    break;
-
-                // Some special keys:
-                case 't':
-                    resultingKeyCode = KeyEvent.KEYCODE_TAB;
-                    break;
-                case 'i':
-                    resultingKeyCode = KeyEvent.KEYCODE_INSERT;
-                    break;
-                case 'h':
-                    resultingKeyCode = KeyEvent.KEYCODE_MOVE_HOME;
-                    break;
-
-                // Special characters to input.
-                case 'u':
-                    resultingCodePoint = '_';
-                    break;
-                case 'l':
-                    resultingCodePoint = '|';
-                    break;
-
-                // Function keys.
-                case '1':
-                case '2':
-                case '3':
-                case '4':
-                case '5':
-                case '6':
-                case '7':
-                case '8':
-                case '9':
-                    resultingKeyCode = (codePoint - '1') + KeyEvent.KEYCODE_F1;
-                    break;
-                case '0':
-                    resultingKeyCode = KeyEvent.KEYCODE_F10;
-                    break;
-
-                // Other special keys.
-                case 'e':
-                    resultingCodePoint = /*Escape*/ 27;
-                    break;
-                case '.':
-                    resultingCodePoint = /*^.*/ 28;
-                    break;
-
-                case 'b': // alt+b, jumping backward in readline.
-                case 'f': // alf+f, jumping forward in readline.
-                case 'x': // alt+x, common in emacs.
-                    resultingCodePoint = lowerCase;
-                    altDown = true;
-                    break;
-
-                // Volume control.
-                case 'v':
-                    resultingCodePoint = -1;
-                    AudioManager audio = (AudioManager) mActivity.getSystemService(Context.AUDIO_SERVICE);
-                    audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
-                    break;
-
-                // Writing mode:
-                case 'q':
-                    mActivity.toggleShowExtraKeys();
-                    break;
-            }
-
-            if (resultingKeyCode != -1) {
-                TerminalEmulator term = session.getEmulator();
-                session.write(KeyHandler.getCode(resultingKeyCode, 0, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode()));
-            } else if (resultingCodePoint != -1) {
-                session.writeCodePoint(altDown, resultingCodePoint);
-            }
-            return true;
-        } else if (ctrlDown) {
-            if (codePoint == 106 /* Ctrl+j or \n */ && !session.isRunning()) {
-                mActivity.removeFinishedSession(session);
-                return true;
-            }
-
-            List<TermuxPreferences.KeyboardShortcut> shortcuts = mActivity.mSettings.shortcuts;
-            if (!shortcuts.isEmpty()) {
-                int codePointLowerCase = Character.toLowerCase(codePoint);
-                for (int i = shortcuts.size() - 1; i >= 0; i--) {
-                    TermuxPreferences.KeyboardShortcut shortcut = shortcuts.get(i);
-                    if (codePointLowerCase == shortcut.codePoint) {
-                        switch (shortcut.shortcutAction) {
-                            case TermuxPreferences.SHORTCUT_ACTION_CREATE_SESSION:
-                                mActivity.addNewSession(false, null);
-                                return true;
-                            case TermuxPreferences.SHORTCUT_ACTION_PREVIOUS_SESSION:
-                                mActivity.switchToSession(false);
-                                return true;
-                            case TermuxPreferences.SHORTCUT_ACTION_NEXT_SESSION:
-                                mActivity.switchToSession(true);
-                                return true;
-                            case TermuxPreferences.SHORTCUT_ACTION_RENAME_SESSION:
-                                mActivity.renameSession(mActivity.getCurrentTermSession());
-                                return true;
-                        }
-                    }
-                }
-            }
-        }
-
-        return false;
-    }
-
-    /** Handle dedicated volume buttons as virtual keys if applicable. */
-    private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
-        InputDevice inputDevice = event.getDevice();
-        if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
-            // Do not steal dedicated buttons from a full external keyboard.
-            return false;
-        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
-            mVirtualControlKeyDown = down;
-            return true;
-        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
-            mVirtualFnKeyDown = down;
-            return true;
-        }
-        return false;
-    }
-
-
-}

app/src/main/java/com/termux/app/TermuxOpenReceiver.java

@@ -0,0 +1,217 @@
+package com.termux.app;
+
+import android.content.ActivityNotFoundException;
+import android.content.BroadcastReceiver;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.net.Uri;
+import android.os.Environment;
+import android.os.ParcelFileDescriptor;
+import android.provider.MediaStore;
+import android.webkit.MimeTypeMap;
+
+import com.termux.app.utils.PluginUtils;
+import com.termux.shared.data.IntentUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.termux.TermuxConstants;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+import androidx.annotation.NonNull;
+
+public class TermuxOpenReceiver extends BroadcastReceiver {
+
+    private static final String LOG_TAG = "TermuxOpenReceiver";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final Uri data = intent.getData();
+        if (data == null) {
+            Logger.logError(LOG_TAG, "termux-open: Called without intent data");
+            return;
+        }
+
+        Logger.logVerbose(LOG_TAG, "Intent Received:\n" + IntentUtils.getIntentString(intent));
+
+        final String filePath = data.getPath();
+        final String contentTypeExtra = intent.getStringExtra("content-type");
+        final boolean useChooser = intent.getBooleanExtra("chooser", false);
+        final String intentAction = intent.getAction() == null ? Intent.ACTION_VIEW : intent.getAction();
+        switch (intentAction) {
+            case Intent.ACTION_SEND:
+            case Intent.ACTION_VIEW:
+                // Ok.
+                break;
+            default:
+                Logger.logError(LOG_TAG, "Invalid action '" + intentAction + "', using 'view'");
+                break;
+        }
+
+        final boolean isExternalUrl = data.getScheme() != null && !data.getScheme().equals("file");
+        if (isExternalUrl) {
+            Intent urlIntent = new Intent(intentAction, data);
+            if (intentAction.equals(Intent.ACTION_SEND)) {
+                urlIntent.putExtra(Intent.EXTRA_TEXT, data.toString());
+                urlIntent.setData(null);
+            } else if (contentTypeExtra != null) {
+                urlIntent.setDataAndType(data, contentTypeExtra);
+            }
+            urlIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            try {
+                context.startActivity(urlIntent);
+            } catch (ActivityNotFoundException e) {
+                Logger.logError(LOG_TAG, "termux-open: No app handles the url " + data);
+            }
+            return;
+        }
+
+        final File fileToShare = new File(filePath);
+        if (!(fileToShare.isFile() && fileToShare.canRead())) {
+            Logger.logError(LOG_TAG, "termux-open: Not a readable file: '" + fileToShare.getAbsolutePath() + "'");
+            return;
+        }
+
+        Intent sendIntent = new Intent();
+        sendIntent.setAction(intentAction);
+        sendIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+        String contentTypeToUse;
+        if (contentTypeExtra == null) {
+            String fileName = fileToShare.getName();
+            int lastDotIndex = fileName.lastIndexOf('.');
+            String fileExtension = fileName.substring(lastDotIndex + 1);
+            MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
+            // Lower casing makes it work with e.g. "JPG":
+            contentTypeToUse = mimeTypes.getMimeTypeFromExtension(fileExtension.toLowerCase());
+            if (contentTypeToUse == null) contentTypeToUse = "application/octet-stream";
+        } else {
+            contentTypeToUse = contentTypeExtra;
+        }
+
+        Uri uriToShare = Uri.parse("content://" + TermuxConstants.TERMUX_FILE_SHARE_URI_AUTHORITY + fileToShare.getAbsolutePath());
+
+        if (Intent.ACTION_SEND.equals(intentAction)) {
+            sendIntent.putExtra(Intent.EXTRA_STREAM, uriToShare);
+            sendIntent.setType(contentTypeToUse);
+        } else {
+            sendIntent.setDataAndType(uriToShare, contentTypeToUse);
+        }
+
+        if (useChooser) {
+            sendIntent = Intent.createChooser(sendIntent, null).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        }
+
+        try {
+            context.startActivity(sendIntent);
+        } catch (ActivityNotFoundException e) {
+            Logger.logError(LOG_TAG, "termux-open: No app handles the url " + data);
+        }
+    }
+
+    public static class ContentProvider extends android.content.ContentProvider {
+
+        private static final String LOG_TAG = "TermuxContentProvider";
+
+        @Override
+        public boolean onCreate() {
+            return true;
+        }
+
+        @Override
+        public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
+            File file = new File(uri.getPath());
+
+            if (projection == null) {
+                projection = new String[]{
+                    MediaStore.MediaColumns.DISPLAY_NAME,
+                    MediaStore.MediaColumns.SIZE,
+                    MediaStore.MediaColumns._ID
+                };
+            }
+
+            Object[] row = new Object[projection.length];
+            for (int i = 0; i < projection.length; i++) {
+                String column = projection[i];
+                Object value;
+                switch (column) {
+                    case MediaStore.MediaColumns.DISPLAY_NAME:
+                        value = file.getName();
+                        break;
+                    case MediaStore.MediaColumns.SIZE:
+                        value = (int) file.length();
+                        break;
+                    case MediaStore.MediaColumns._ID:
+                        value = 1;
+                        break;
+                    default:
+                        value = null;
+                }
+                row[i] = value;
+            }
+
+            MatrixCursor cursor = new MatrixCursor(projection);
+            cursor.addRow(row);
+            return cursor;
+        }
+
+        @Override
+        public String getType(@NonNull Uri uri) {
+            return null;
+        }
+
+        @Override
+        public Uri insert(@NonNull Uri uri, ContentValues values) {
+            return null;
+        }
+
+        @Override
+        public int delete(@NonNull Uri uri, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public int update(@NonNull Uri uri, ContentValues values, String selection, String[] selectionArgs) {
+            return 0;
+        }
+
+        @Override
+        public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException {
+            File file = new File(uri.getPath());
+            try {
+                String path = file.getCanonicalPath();
+                Logger.logDebug(LOG_TAG, "Open file request received for \"" + path + "\" with mode \"" + mode + "\"");
+                String storagePath = Environment.getExternalStorageDirectory().getCanonicalPath();
+                // See https://support.google.com/faqs/answer/7496913:
+                if (!(path.startsWith(TermuxConstants.TERMUX_FILES_DIR_PATH) || path.startsWith(storagePath))) {
+                    throw new IllegalArgumentException("Invalid path: " + path);
+                }
+
+                // If "allow-external-apps" property to not set to "true", then throw exception
+                String errmsg = PluginUtils.checkIfAllowExternalAppsPolicyIsViolated(getContext(), LOG_TAG);
+                if (errmsg != null) {
+                    throw new IllegalArgumentException(errmsg);
+                }
+
+                // Do not allow apps with RUN_COMMAND permission to modify termux apps properties files,
+                // including allow-external-apps
+                if (TermuxConstants.TERMUX_PROPERTIES_PRIMARY_FILE_PATH.equals(path) ||
+                    TermuxConstants.TERMUX_PROPERTIES_SECONDARY_FILE_PATH.equals(path) ||
+                    TermuxConstants.TERMUX_FLOAT_PROPERTIES_PRIMARY_FILE_PATH.equals(path) ||
+                    TermuxConstants.TERMUX_FLOAT_PROPERTIES_SECONDARY_FILE_PATH.equals(path)) {
+                    mode = "r";
+                }
+
+            } catch (IOException e) {
+                throw new IllegalArgumentException(e);
+            }
+
+            return ParcelFileDescriptor.open(file, ParcelFileDescriptor.parseMode(mode));
+        }
+    }
+
+}

app/src/main/java/com/termux/app/TermuxPreferences.java

@@ -1,207 +0,0 @@
-package com.termux.app;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-import android.support.annotation.IntDef;
-import android.util.Log;
-import android.util.TypedValue;
-import android.widget.Toast;
-
-import com.termux.terminal.TerminalSession;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Properties;
-
-final class TermuxPreferences {
-
-    @IntDef({BELL_VIBRATE, BELL_BEEP, BELL_IGNORE})
-    @Retention(RetentionPolicy.SOURCE)
-    public @interface AsciiBellBehaviour {
-    }
-
-    static final int BELL_VIBRATE = 1;
-    static final int BELL_BEEP = 2;
-    static final int BELL_IGNORE = 3;
-
-    private final int MIN_FONTSIZE;
-    private static final int MAX_FONTSIZE = 256;
-
-    private static final String FULLSCREEN_KEY = "fullscreen";
-    private static final String SHOW_EXTRA_KEYS_KEY = "show_extra_keys";
-    private static final String FONTSIZE_KEY = "fontsize";
-    private static final String CURRENT_SESSION_KEY = "current_session";
-    private static final String SHOW_WELCOME_DIALOG_KEY = "intro_dialog";
-
-    private boolean mFullScreen;
-    private int mFontSize;
-
-    @AsciiBellBehaviour
-    int mBellBehaviour = BELL_VIBRATE;
-
-    boolean mBackIsEscape;
-    boolean mShowExtraKeys;
-
-    TermuxPreferences(Context context) {
-        reloadFromProperties(context);
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-
-        float dipInPixels = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 1, context.getResources().getDisplayMetrics());
-
-        // This is a bit arbitrary and sub-optimal. We want to give a sensible default for minimum font size
-        // to prevent invisible text due to zoom be mistake:
-        MIN_FONTSIZE = (int) (4f * dipInPixels);
-
-        mFullScreen = prefs.getBoolean(FULLSCREEN_KEY, false);
-        mShowExtraKeys = prefs.getBoolean(SHOW_EXTRA_KEYS_KEY, false);
-
-        // http://www.google.com/design/spec/style/typography.html#typography-line-height
-        int defaultFontSize = Math.round(12 * dipInPixels);
-        // Make it divisible by 2 since that is the minimal adjustment step:
-        if (defaultFontSize % 2 == 1) defaultFontSize--;
-
-        try {
-            mFontSize = Integer.parseInt(prefs.getString(FONTSIZE_KEY, Integer.toString(defaultFontSize)));
-        } catch (NumberFormatException | ClassCastException e) {
-            mFontSize = defaultFontSize;
-        }
-        mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
-    }
-
-    boolean isFullScreen() {
-        return mFullScreen;
-    }
-
-    void setFullScreen(Context context, boolean newValue) {
-        mFullScreen = newValue;
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(FULLSCREEN_KEY, newValue).apply();
-    }
-
-    boolean isShowExtraKeys() {
-        return mShowExtraKeys;
-    }
-
-    boolean toggleShowExtraKeys(Context context) {
-        mShowExtraKeys = !mShowExtraKeys;
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_EXTRA_KEYS_KEY, mShowExtraKeys).apply();
-        return mShowExtraKeys;
-    }
-
-    int getFontSize() {
-        return mFontSize;
-    }
-
-    void changeFontSize(Context context, boolean increase) {
-        mFontSize += (increase ? 1 : -1) * 2;
-        mFontSize = Math.max(MIN_FONTSIZE, Math.min(mFontSize, MAX_FONTSIZE));
-
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        prefs.edit().putString(FONTSIZE_KEY, Integer.toString(mFontSize)).apply();
-    }
-
-    static void storeCurrentSession(Context context, TerminalSession session) {
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putString(TermuxPreferences.CURRENT_SESSION_KEY, session.mHandle).commit();
-    }
-
-    static TerminalSession getCurrentSession(TermuxActivity context) {
-        String sessionHandle = PreferenceManager.getDefaultSharedPreferences(context).getString(TermuxPreferences.CURRENT_SESSION_KEY, "");
-        for (int i = 0, len = context.mTermService.getSessions().size(); i < len; i++) {
-            TerminalSession session = context.mTermService.getSessions().get(i);
-            if (session.mHandle.equals(sessionHandle)) return session;
-        }
-        return null;
-    }
-
-    public static boolean isShowWelcomeDialog(Context context) {
-        return PreferenceManager.getDefaultSharedPreferences(context).getBoolean(SHOW_WELCOME_DIALOG_KEY, true);
-    }
-
-    public static void disableWelcomeDialog(Context context) {
-        PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean(SHOW_WELCOME_DIALOG_KEY, false).apply();
-    }
-
-    public void reloadFromProperties(Context context) {
-        try {
-            File propsFile = new File(TermuxService.HOME_PATH + "/.termux/termux.properties");
-            if (!propsFile.exists())
-                propsFile = new File(TermuxService.HOME_PATH + "/.config/termux/termux.properties");
-
-            Properties props = new Properties();
-            if (propsFile.isFile() && propsFile.canRead()) {
-                try (FileInputStream in = new FileInputStream(propsFile)) {
-                    props.load(in);
-                }
-            }
-
-            switch (props.getProperty("bell-character", "vibrate")) {
-                case "beep":
-                    mBellBehaviour = BELL_BEEP;
-                    break;
-                case "ignore":
-                    mBellBehaviour = BELL_IGNORE;
-                    break;
-                default: // "vibrate".
-                    mBellBehaviour = BELL_VIBRATE;
-                    break;
-            }
-
-            mBackIsEscape = "escape".equals(props.getProperty("back-key", "back"));
-
-            shortcuts.clear();
-            parseAction("shortcut.create-session", SHORTCUT_ACTION_CREATE_SESSION, props);
-            parseAction("shortcut.next-session", SHORTCUT_ACTION_NEXT_SESSION, props);
-            parseAction("shortcut.previous-session", SHORTCUT_ACTION_PREVIOUS_SESSION, props);
-            parseAction("shortcut.rename-session", SHORTCUT_ACTION_RENAME_SESSION, props);
-        } catch (Exception e) {
-            Toast.makeText(context, "Error loading properties: " + e.getMessage(), Toast.LENGTH_LONG).show();
-            Log.e("termux", "Error loading props", e);
-        }
-    }
-
-    public static final int SHORTCUT_ACTION_CREATE_SESSION = 1;
-    public static final int SHORTCUT_ACTION_NEXT_SESSION = 2;
-    public static final int SHORTCUT_ACTION_PREVIOUS_SESSION = 3;
-    public static final int SHORTCUT_ACTION_RENAME_SESSION = 4;
-
-    public final static class KeyboardShortcut {
-
-        public KeyboardShortcut(int codePoint, int shortcutAction) {
-            this.codePoint = codePoint;
-            this.shortcutAction = shortcutAction;
-        }
-
-        final int codePoint;
-        final int shortcutAction;
-    }
-
-    final List<KeyboardShortcut> shortcuts = new ArrayList<>();
-
-    private void parseAction(String name, int shortcutAction, Properties props) {
-        String value = props.getProperty(name);
-        if (value == null) return;
-        String[] parts = value.toLowerCase().trim().split("\\+");
-        String input = parts.length == 2 ? parts[1].trim() : null;
-        if (!(parts.length == 2 && parts[0].trim().equals("ctrl")) || input.isEmpty() || input.length() > 2) {
-            Log.e("termux", "Keyboard shortcut '" + name + "' is not Ctrl+<something>");
-            return;
-        }
-
-        char c = input.charAt(0);
-        int codePoint = c;
-        if (Character.isLowSurrogate(c)) {
-            if (input.length() != 2 || Character.isHighSurrogate(input.charAt(1))) {
-                Log.e("termux", "Keyboard shortcut '" + name + "' is not Ctrl+<something>");
-                return;
-            } else {
-                codePoint = Character.toCodePoint(input.charAt(1), c);
-            }
-        }
-        shortcuts.add(new KeyboardShortcut(codePoint, shortcutAction));
-    }
-
-}

app/src/main/java/com/termux/app/activities/HelpActivity.java

@@ -1,4 +1,4 @@
-package com.termux.app;
+package com.termux.app.activities;
 
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
@@ -12,8 +12,10 @@ import android.webkit.WebViewClient;
 import android.widget.ProgressBar;
 import android.widget.RelativeLayout;
 
+import com.termux.shared.termux.TermuxConstants;
+
 /** Basic embedded browser for viewing help pages. */
-public final class TermuxHelpActivity extends Activity {
+public final class HelpActivity extends Activity {
 
     WebView mWebView;
 
@@ -39,7 +41,7 @@ public final class TermuxHelpActivity extends Activity {
         mWebView.setWebViewClient(new WebViewClient() {
             @Override
             public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                if (url.startsWith("https://termux.com")) {
+                if (url.equals(TermuxConstants.TERMUX_WIKI_URL) || url.startsWith(TermuxConstants.TERMUX_WIKI_URL + "/")) {
                     // Inline help.
                     setContentView(progressLayout);
                     return false;
@@ -60,7 +62,7 @@ public final class TermuxHelpActivity extends Activity {
                 setContentView(mWebView);
             }
         });
-        mWebView.loadUrl("https://termux.com/help.html");
+        mWebView.loadUrl(TermuxConstants.TERMUX_WIKI_URL);
     }
 
     @Override

app/src/main/java/com/termux/app/activities/SettingsActivity.java

@@ -0,0 +1,164 @@
+package com.termux.app.activities;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Environment;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceFragmentCompat;
+
+import com.termux.R;
+import com.termux.shared.activities.ReportActivity;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.models.ReportInfo;
+import com.termux.app.models.UserAction;
+import com.termux.shared.interact.ShareUtils;
+import com.termux.shared.packages.PackageUtils;
+import com.termux.shared.settings.preferences.TermuxAPIAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxFloatAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxTaskerAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxWidgetAppSharedPreferences;
+import com.termux.shared.termux.AndroidUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxUtils;
+
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_settings);
+        if (savedInstanceState == null) {
+            getSupportFragmentManager()
+                .beginTransaction()
+                .replace(R.id.settings, new RootPreferencesFragment())
+                .commit();
+        }
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayHomeAsUpEnabled(true);
+            actionBar.setDisplayShowHomeEnabled(true);
+        }
+    }
+
+    @Override
+    public boolean onSupportNavigateUp() {
+        onBackPressed();
+        return true;
+    }
+
+    public static class RootPreferencesFragment extends PreferenceFragmentCompat {
+        @Override
+        public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+            Context context = getContext();
+            if (context == null) return;
+
+            setPreferencesFromResource(R.xml.root_preferences, rootKey);
+
+            configureTermuxAPIPreference(context);
+            configureTermuxFloatPreference(context);
+            configureTermuxTaskerPreference(context);
+            configureTermuxWidgetPreference(context);
+            configureAboutPreference(context);
+            configureDonatePreference(context);
+        }
+
+        private void configureTermuxAPIPreference(@NonNull Context context) {
+            Preference termuxAPIPreference = findPreference("termux_api");
+            if (termuxAPIPreference != null) {
+                TermuxAPIAppSharedPreferences preferences = TermuxAPIAppSharedPreferences.build(context, false);
+                // If failed to get app preferences, then likely app is not installed, so do not show its preference
+                termuxAPIPreference.setVisible(preferences != null);
+            }
+        }
+
+        private void configureTermuxFloatPreference(@NonNull Context context) {
+            Preference termuxFloatPreference = findPreference("termux_float");
+            if (termuxFloatPreference != null) {
+                TermuxFloatAppSharedPreferences preferences = TermuxFloatAppSharedPreferences.build(context, false);
+                // If failed to get app preferences, then likely app is not installed, so do not show its preference
+                termuxFloatPreference.setVisible(preferences != null);
+            }
+        }
+
+        private void configureTermuxTaskerPreference(@NonNull Context context) {
+            Preference termuxTaskerPreference = findPreference("termux_tasker");
+            if (termuxTaskerPreference != null) {
+                TermuxTaskerAppSharedPreferences preferences = TermuxTaskerAppSharedPreferences.build(context, false);
+                // If failed to get app preferences, then likely app is not installed, so do not show its preference
+                termuxTaskerPreference.setVisible(preferences != null);
+            }
+        }
+
+        private void configureTermuxWidgetPreference(@NonNull Context context) {
+            Preference termuxWidgetPreference = findPreference("termux_widget");
+            if (termuxWidgetPreference != null) {
+                TermuxWidgetAppSharedPreferences preferences = TermuxWidgetAppSharedPreferences.build(context, false);
+                // If failed to get app preferences, then likely app is not installed, so do not show its preference
+                termuxWidgetPreference.setVisible(preferences != null);
+            }
+        }
+
+        private void configureAboutPreference(@NonNull Context context) {
+            Preference aboutPreference = findPreference("about");
+            if (aboutPreference != null) {
+                aboutPreference.setOnPreferenceClickListener(preference -> {
+                    new Thread() {
+                        @Override
+                        public void run() {
+                            String title = "About";
+
+                            StringBuilder aboutString = new StringBuilder();
+                            aboutString.append(TermuxUtils.getAppInfoMarkdownString(context, false));
+
+                            String termuxPluginAppsInfo =  TermuxUtils.getTermuxPluginAppsInfoMarkdownString(context);
+                            if (termuxPluginAppsInfo != null)
+                                aboutString.append("\n\n").append(termuxPluginAppsInfo);
+
+                            aboutString.append("\n\n").append(AndroidUtils.getDeviceInfoMarkdownString(context));
+                            aboutString.append("\n\n").append(TermuxUtils.getImportantLinksMarkdownString(context));
+
+                            String userActionName = UserAction.ABOUT.getName();
+                            ReportActivity.startReportActivity(context, new ReportInfo(userActionName,
+                                TermuxConstants.TERMUX_APP.TERMUX_SETTINGS_ACTIVITY_NAME, title, null,
+                                aboutString.toString(), null, false,
+                                userActionName,
+                                Environment.getExternalStorageDirectory() + "/" +
+                                    FileUtils.sanitizeFileName(TermuxConstants.TERMUX_APP_NAME + "-" + userActionName + ".log", true, true)));
+                        }
+                    }.start();
+
+                    return true;
+                });
+            }
+        }
+
+        private void configureDonatePreference(@NonNull Context context) {
+            Preference donatePreference = findPreference("donate");
+            if (donatePreference != null) {
+                String signingCertificateSHA256Digest = PackageUtils.getSigningCertificateSHA256DigestForPackage(context);
+                if (signingCertificateSHA256Digest != null) {
+                    // If APK is a Google Playstore release, then do not show the donation link
+                    // since Termux isn't exempted from the playstore policy donation links restriction
+                    // Check Fund solicitations: https://pay.google.com/intl/en_in/about/policy/
+                    String apkRelease = TermuxUtils.getAPKRelease(signingCertificateSHA256Digest);
+                    if (apkRelease == null || apkRelease.equals(TermuxConstants.APK_RELEASE_GOOGLE_PLAYSTORE_SIGNING_CERTIFICATE_SHA256_DIGEST)) {
+                        donatePreference.setVisible(false);
+                        return;
+                    } else {
+                        donatePreference.setVisible(true);
+                    }
+                }
+
+                donatePreference.setOnPreferenceClickListener(preference -> {
+                    ShareUtils.openURL(context, TermuxConstants.TERMUX_DONATE_URL);
+                    return true;
+                });
+            }
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/TermuxAPIPreferencesFragment.java

@@ -0,0 +1,49 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAPIAppSharedPreferences;
+
+@Keep
+public class TermuxAPIPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TermuxAPIPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_api_preferences, rootKey);
+    }
+
+}
+
+class TermuxAPIPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAPIAppSharedPreferences mPreferences;
+
+    private static TermuxAPIPreferencesDataStore mInstance;
+
+    private TermuxAPIPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAPIAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TermuxAPIPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TermuxAPIPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/TermuxFloatPreferencesFragment.java

@@ -0,0 +1,49 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxFloatAppSharedPreferences;
+
+@Keep
+public class TermuxFloatPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TermuxFloatPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_float_preferences, rootKey);
+    }
+
+}
+
+class TermuxFloatPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxFloatAppSharedPreferences mPreferences;
+
+    private static TermuxFloatPreferencesDataStore mInstance;
+
+    private TermuxFloatPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxFloatAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TermuxFloatPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TermuxFloatPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/TermuxPreferencesFragment.java

@@ -0,0 +1,49 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+
+@Keep
+public class TermuxPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TermuxPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_preferences, rootKey);
+    }
+
+}
+
+class TermuxPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static TermuxPreferencesDataStore mInstance;
+
+    private TermuxPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TermuxPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TermuxPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/TermuxTaskerPreferencesFragment.java

@@ -0,0 +1,49 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxTaskerAppSharedPreferences;
+
+@Keep
+public class TermuxTaskerPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TermuxTaskerPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_tasker_preferences, rootKey);
+    }
+
+}
+
+class TermuxTaskerPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxTaskerAppSharedPreferences mPreferences;
+
+    private static TermuxTaskerPreferencesDataStore mInstance;
+
+    private TermuxTaskerPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxTaskerAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TermuxTaskerPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TermuxTaskerPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/TermuxWidgetPreferencesFragment.java

@@ -0,0 +1,49 @@
+package com.termux.app.fragments.settings;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxWidgetAppSharedPreferences;
+
+@Keep
+public class TermuxWidgetPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TermuxWidgetPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_widget_preferences, rootKey);
+    }
+
+}
+
+class TermuxWidgetPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxWidgetAppSharedPreferences mPreferences;
+
+    private static TermuxWidgetPreferencesDataStore mInstance;
+
+    private TermuxWidgetPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxWidgetAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TermuxWidgetPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TermuxWidgetPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux/DebuggingPreferencesFragment.java

@@ -0,0 +1,155 @@
+package com.termux.app.fragments.settings.termux;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.logger.Logger;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_debugging_preferences, rootKey);
+
+        configureLoggingPreferences(context);
+    }
+
+    private void configureLoggingPreferences(@NonNull Context context) {
+        PreferenceCategory loggingCategory = findPreference("logging");
+        if (loggingCategory == null) return;
+
+        ListPreference logLevelListPreference = findPreference("log_level");
+        if (logLevelListPreference != null) {
+            TermuxAppSharedPreferences preferences = TermuxAppSharedPreferences.build(context, true);
+            if (preferences == null) return;
+
+            setLogLevelListPreferenceData(logLevelListPreference, context, preferences.getLogLevel());
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+
+    public static ListPreference setLogLevelListPreferenceData(ListPreference logLevelListPreference, Context context, int logLevel) {
+        if (logLevelListPreference == null)
+            logLevelListPreference = new ListPreference(context);
+
+        CharSequence[] logLevels = Logger.getLogLevelsArray();
+        CharSequence[] logLevelLabels = Logger.getLogLevelLabelsArray(context, logLevels, true);
+
+        logLevelListPreference.setEntryValues(logLevels);
+        logLevelListPreference.setEntries(logLevelLabels);
+
+        logLevelListPreference.setValue(String.valueOf(logLevel));
+        logLevelListPreference.setDefaultValue(Logger.DEFAULT_LOG_LEVEL);
+
+        return logLevelListPreference;
+    }
+
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (mPreferences == null) return null;
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel());
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value));
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                    mPreferences.setTerminalViewKeyLoggingEnabled(value);
+                break;
+            case "plugin_error_notifications_enabled":
+                mPreferences.setPluginErrorNotificationsEnabled(value);
+                break;
+            case "crash_report_notifications_enabled":
+                mPreferences.setCrashReportNotificationsEnabled(value);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        if (mPreferences == null) return false;
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                return mPreferences.isTerminalViewKeyLoggingEnabled();
+            case "plugin_error_notifications_enabled":
+                return mPreferences.arePluginErrorNotificationsEnabled();
+            case "crash_report_notifications_enabled":
+                return mPreferences.areCrashReportNotificationsEnabled();
+            default:
+                return false;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux/TerminalIOPreferencesFragment.java

@@ -0,0 +1,82 @@
+package com.termux.app.fragments.settings.termux;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+
+@Keep
+public class TerminalIOPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TerminalIOPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_terminal_io_preferences, rootKey);
+    }
+
+}
+
+class TerminalIOPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static TerminalIOPreferencesDataStore mInstance;
+
+    private TerminalIOPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TerminalIOPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TerminalIOPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "soft_keyboard_enabled":
+                    mPreferences.setSoftKeyboardEnabled(value);
+                break;
+            case "soft_keyboard_enabled_only_if_no_hardware":
+                mPreferences.setSoftKeyboardEnabledOnlyIfNoHardware(value);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        if (mPreferences == null) return false;
+
+        switch (key) {
+            case "soft_keyboard_enabled":
+                return mPreferences.isSoftKeyboardEnabled();
+            case "soft_keyboard_enabled_only_if_no_hardware":
+                return mPreferences.isSoftKeyboardEnabledOnlyIfNoHardware();
+            default:
+                return false;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux/TerminalViewPreferencesFragment.java

@@ -0,0 +1,77 @@
+package com.termux.app.fragments.settings.termux;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+
+@Keep
+public class TerminalViewPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(TerminalViewPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_terminal_view_preferences, rootKey);
+    }
+
+}
+
+class TerminalViewPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAppSharedPreferences mPreferences;
+
+    private static TerminalViewPreferencesDataStore mInstance;
+
+    private TerminalViewPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized TerminalViewPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new TerminalViewPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "terminal_margin_adjustment":
+                    mPreferences.setTerminalMarginAdjustment(value);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        if (mPreferences == null) return false;
+
+        switch (key) {
+            case "terminal_margin_adjustment":
+                return mPreferences.isTerminalMarginAdjustmentEnabled();
+            default:
+                return false;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux_api/DebuggingPreferencesFragment.java

@@ -0,0 +1,101 @@
+package com.termux.app.fragments.settings.termux_api;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxAPIAppSharedPreferences;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_api_debugging_preferences, rootKey);
+
+        configureLoggingPreferences(context);
+    }
+
+    private void configureLoggingPreferences(@NonNull Context context) {
+        PreferenceCategory loggingCategory = findPreference("logging");
+        if (loggingCategory == null) return;
+
+        ListPreference logLevelListPreference = findPreference("log_level");
+        if (logLevelListPreference != null) {
+            TermuxAPIAppSharedPreferences preferences = TermuxAPIAppSharedPreferences.build(context, true);
+            if (preferences == null) return;
+
+            com.termux.app.fragments.settings.termux.DebuggingPreferencesFragment.
+                setLogLevelListPreferenceData(logLevelListPreference, context, preferences.getLogLevel(true));
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxAPIAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxAPIAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (mPreferences == null) return null;
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel(true));
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value), true);
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux_float/DebuggingPreferencesFragment.java

@@ -0,0 +1,126 @@
+package com.termux.app.fragments.settings.termux_float;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxFloatAppSharedPreferences;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_float_debugging_preferences, rootKey);
+
+        configureLoggingPreferences(context);
+    }
+
+    private void configureLoggingPreferences(@NonNull Context context) {
+        PreferenceCategory loggingCategory = findPreference("logging");
+        if (loggingCategory == null) return;
+
+        ListPreference logLevelListPreference = findPreference("log_level");
+        if (logLevelListPreference != null) {
+            TermuxFloatAppSharedPreferences preferences = TermuxFloatAppSharedPreferences.build(context, true);
+            if (preferences == null) return;
+
+            com.termux.app.fragments.settings.termux.DebuggingPreferencesFragment.
+                setLogLevelListPreferenceData(logLevelListPreference, context, preferences.getLogLevel(true));
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxFloatAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxFloatAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (mPreferences == null) return null;
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel(true));
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value), true);
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public void putBoolean(String key, boolean value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                mPreferences.setTerminalViewKeyLoggingEnabled(value, true);
+                break;
+            default:
+                break;
+        }
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        if (mPreferences == null) return false;
+        switch (key) {
+            case "terminal_view_key_logging_enabled":
+                return mPreferences.isTerminalViewKeyLoggingEnabled(true);
+            default:
+                return false;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux_tasker/DebuggingPreferencesFragment.java

@@ -0,0 +1,101 @@
+package com.termux.app.fragments.settings.termux_tasker;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxTaskerAppSharedPreferences;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_tasker_debugging_preferences, rootKey);
+
+        configureLoggingPreferences(context);
+    }
+
+    private void configureLoggingPreferences(@NonNull Context context) {
+        PreferenceCategory loggingCategory = findPreference("logging");
+        if (loggingCategory == null) return;
+
+        ListPreference logLevelListPreference = findPreference("log_level");
+        if (logLevelListPreference != null) {
+            TermuxTaskerAppSharedPreferences preferences = TermuxTaskerAppSharedPreferences.build(context, true);
+            if (preferences == null) return;
+
+            com.termux.app.fragments.settings.termux.DebuggingPreferencesFragment.
+                setLogLevelListPreferenceData(logLevelListPreference, context, preferences.getLogLevel(true));
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxTaskerAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxTaskerAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (mPreferences == null) return null;
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel(true));
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value), true);
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/fragments/settings/termux_widget/DebuggingPreferencesFragment.java

@@ -0,0 +1,101 @@
+package com.termux.app.fragments.settings.termux_widget;
+
+import android.content.Context;
+import android.os.Bundle;
+
+import androidx.annotation.Keep;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.ListPreference;
+import androidx.preference.PreferenceCategory;
+import androidx.preference.PreferenceDataStore;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+
+import com.termux.R;
+import com.termux.shared.settings.preferences.TermuxWidgetAppSharedPreferences;
+
+@Keep
+public class DebuggingPreferencesFragment extends PreferenceFragmentCompat {
+
+    @Override
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        Context context = getContext();
+        if (context == null) return;
+
+        PreferenceManager preferenceManager = getPreferenceManager();
+        preferenceManager.setPreferenceDataStore(DebuggingPreferencesDataStore.getInstance(context));
+
+        setPreferencesFromResource(R.xml.termux_widget_debugging_preferences, rootKey);
+
+        configureLoggingPreferences(context);
+    }
+
+    private void configureLoggingPreferences(@NonNull Context context) {
+        PreferenceCategory loggingCategory = findPreference("logging");
+        if (loggingCategory == null) return;
+
+        ListPreference logLevelListPreference = findPreference("log_level");
+        if (logLevelListPreference != null) {
+            TermuxWidgetAppSharedPreferences preferences = TermuxWidgetAppSharedPreferences.build(context, true);
+            if (preferences == null) return;
+
+            com.termux.app.fragments.settings.termux.DebuggingPreferencesFragment.
+                setLogLevelListPreferenceData(logLevelListPreference, context, preferences.getLogLevel(true));
+            loggingCategory.addPreference(logLevelListPreference);
+        }
+    }
+}
+
+class DebuggingPreferencesDataStore extends PreferenceDataStore {
+
+    private final Context mContext;
+    private final TermuxWidgetAppSharedPreferences mPreferences;
+
+    private static DebuggingPreferencesDataStore mInstance;
+
+    private DebuggingPreferencesDataStore(Context context) {
+        mContext = context;
+        mPreferences = TermuxWidgetAppSharedPreferences.build(context, true);
+    }
+
+    public static synchronized DebuggingPreferencesDataStore getInstance(Context context) {
+        if (mInstance == null) {
+            mInstance = new DebuggingPreferencesDataStore(context);
+        }
+        return mInstance;
+    }
+
+
+
+    @Override
+    @Nullable
+    public String getString(String key, @Nullable String defValue) {
+        if (mPreferences == null) return null;
+        if (key == null) return null;
+
+        switch (key) {
+            case "log_level":
+                return String.valueOf(mPreferences.getLogLevel(true));
+            default:
+                return null;
+        }
+    }
+
+    @Override
+    public void putString(String key, @Nullable String value) {
+        if (mPreferences == null) return;
+        if (key == null) return;
+
+        switch (key) {
+            case "log_level":
+                if (value != null) {
+                    mPreferences.setLogLevel(mContext, Integer.parseInt(value), true);
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+}

app/src/main/java/com/termux/app/models/UserAction.java

@@ -0,0 +1,20 @@
+package com.termux.app.models;
+
+public enum UserAction {
+
+    ABOUT("about"),
+    CRASH_REPORT("crash report"),
+    PLUGIN_EXECUTION_COMMAND("plugin execution command"),
+    REPORT_ISSUE_FROM_TRANSCRIPT("report issue from transcript");
+
+    private final String name;
+
+    UserAction(final String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+}

app/src/main/java/com/termux/app/settings/properties/TermuxAppSharedProperties.java

@@ -0,0 +1,119 @@
+package com.termux.app.settings.properties;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import com.termux.app.terminal.io.KeyboardShortcut;
+import com.termux.shared.terminal.io.extrakeys.ExtraKeysConstants;
+import com.termux.shared.terminal.io.extrakeys.ExtraKeysConstants.EXTRA_KEY_DISPLAY_MAPS;
+import com.termux.shared.terminal.io.extrakeys.ExtraKeysInfo;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.settings.properties.TermuxSharedProperties;
+import com.termux.shared.termux.TermuxConstants;
+
+import org.json.JSONException;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class TermuxAppSharedProperties extends TermuxSharedProperties {
+
+    private ExtraKeysInfo mExtraKeysInfo;
+    private List<KeyboardShortcut> mSessionShortcuts = new ArrayList<>();
+
+    private static final String LOG_TAG = "TermuxAppSharedProperties";
+
+    public TermuxAppSharedProperties(@NonNull Context context) {
+        super(context, TermuxConstants.TERMUX_APP_NAME, TermuxPropertyConstants.getTermuxPropertiesFile(),
+            TermuxPropertyConstants.TERMUX_PROPERTIES_LIST, new SharedPropertiesParserClient());
+    }
+
+    /**
+     * Reload the termux properties from disk into an in-memory cache.
+     */
+    @Override
+    public void loadTermuxPropertiesFromDisk() {
+        super.loadTermuxPropertiesFromDisk();
+
+        setExtraKeys();
+        setSessionShortcuts();
+    }
+
+    /**
+     * Set the terminal extra keys and style.
+     */
+    private void setExtraKeys() {
+        mExtraKeysInfo = null;
+
+        try {
+            // The mMap stores the extra key and style string values while loading properties
+            // Check {@link #getExtraKeysInternalPropertyValueFromValue(String)} and
+            // {@link #getExtraKeysStyleInternalPropertyValueFromValue(String)}
+            String extrakeys = (String) getInternalPropertyValue(TermuxPropertyConstants.KEY_EXTRA_KEYS, true);
+            String extraKeysStyle = (String) getInternalPropertyValue(TermuxPropertyConstants.KEY_EXTRA_KEYS_STYLE, true);
+
+            ExtraKeysConstants.ExtraKeyDisplayMap extraKeyDisplayMap = ExtraKeysInfo.getCharDisplayMapForStyle(extraKeysStyle);
+            if (EXTRA_KEY_DISPLAY_MAPS.DEFAULT_CHAR_DISPLAY.equals(extraKeyDisplayMap) && !TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS_STYLE.equals(extraKeysStyle)) {
+                Logger.logError(TermuxSharedProperties.LOG_TAG, "The style \"" + extraKeysStyle + "\" for the key \"" + TermuxPropertyConstants.KEY_EXTRA_KEYS_STYLE + "\" is invalid. Using default style instead.");
+                extraKeysStyle = TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS_STYLE;
+            }
+
+            mExtraKeysInfo = new ExtraKeysInfo(extrakeys, extraKeysStyle, ExtraKeysConstants.CONTROL_CHARS_ALIASES);
+        } catch (JSONException e) {
+            Logger.showToast(mContext, "Could not load and set the \"" + TermuxPropertyConstants.KEY_EXTRA_KEYS + "\" property from the properties file: " + e.toString(), true);
+            Logger.logStackTraceWithMessage(LOG_TAG, "Could not load and set the \"" + TermuxPropertyConstants.KEY_EXTRA_KEYS + "\" property from the properties file: ", e);
+
+            try {
+                mExtraKeysInfo = new ExtraKeysInfo(TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS, TermuxPropertyConstants.DEFAULT_IVALUE_EXTRA_KEYS_STYLE, ExtraKeysConstants.CONTROL_CHARS_ALIASES);
+            } catch (JSONException e2) {
+                Logger.showToast(mContext, "Can't create default extra keys",true);
+                Logger.logStackTraceWithMessage(LOG_TAG, "Could create default extra keys: ", e);
+                mExtraKeysInfo = null;
+            }
+        }
+    }
+
+    /**
+     * Set the terminal sessions shortcuts.
+     */
+    private void setSessionShortcuts() {
+        if (mSessionShortcuts == null)
+            mSessionShortcuts = new ArrayList<>();
+        else
+            mSessionShortcuts.clear();
+
+        // The {@link TermuxPropertyConstants#MAP_SESSION_SHORTCUTS} stores the session shortcut key and action pair
+        for (Map.Entry<String, Integer> entry : TermuxPropertyConstants.MAP_SESSION_SHORTCUTS.entrySet()) {
+            // The mMap stores the code points for the session shortcuts while loading properties
+            Integer codePoint = (Integer) getInternalPropertyValue(entry.getKey(), true);
+            // If codePoint is null, then session shortcut did not exist in properties or was invalid
+            // as parsed by {@link #getCodePointForSessionShortcuts(String,String)}
+            // If codePoint is not null, then get the action for the MAP_SESSION_SHORTCUTS key and
+            // add the code point to sessionShortcuts
+            if (codePoint != null)
+                mSessionShortcuts.add(new KeyboardShortcut(codePoint, entry.getValue()));
+        }
+    }
+
+    public List<KeyboardShortcut> getSessionShortcuts() {
+        return mSessionShortcuts;
+    }
+
+    public ExtraKeysInfo getExtraKeysInfo() {
+        return mExtraKeysInfo;
+    }
+
+
+
+    /**
+     * Load the {@link TermuxPropertyConstants#KEY_TERMINAL_TRANSCRIPT_ROWS} value from termux properties file on disk.
+     */
+    public static int getTerminalTranscriptRows(Context context) {
+        return  (int) TermuxSharedProperties.getInternalPropertyValue(context, TermuxPropertyConstants.getTermuxPropertiesFile(),
+            TermuxPropertyConstants.KEY_TERMINAL_TRANSCRIPT_ROWS, new SharedPropertiesParserClient());
+    }
+
+}

app/src/main/java/com/termux/app/terminal/TermuxActivityRootView.java

@@ -0,0 +1,284 @@
+package com.termux.app.terminal;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.inputmethodservice.InputMethodService;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewTreeObserver;
+import android.view.WindowInsets;
+import android.view.inputmethod.EditorInfo;
+import android.widget.FrameLayout;
+import android.widget.LinearLayout;
+
+import androidx.annotation.Nullable;
+import androidx.core.view.WindowInsetsCompat;
+
+import com.termux.app.TermuxActivity;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.view.ViewUtils;
+
+
+/**
+ * The {@link TermuxActivity} relies on {@link android.view.WindowManager.LayoutParams#SOFT_INPUT_ADJUST_RESIZE)}
+ * set by {@link TermuxTerminalViewClient#setSoftKeyboardState(boolean, boolean)} to automatically
+ * resize the view and push the terminal up when soft keyboard is opened. However, this does not
+ * always work properly. When `enforce-char-based-input=true` is set in `termux.properties`
+ * and {@link com.termux.view.TerminalView#onCreateInputConnection(EditorInfo)} sets the inputType
+ * to `InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD | InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS`
+ * instead of the default `InputType.TYPE_NULL` for termux, some keyboards may still show suggestions.
+ * Gboard does too, but only when text is copied and clipboard suggestions **and** number keys row
+ * toggles are enabled in its settings. When number keys row toggle is not enabled, Gboard will still
+ * show the row but will switch it with suggestions if needed. If its enabled, then number keys row
+ * is always shown and suggestions are shown in an additional row on top of it. This additional row is likely
+ * part of the candidates view returned by the keyboard app in {@link InputMethodService#onCreateCandidatesView()}.
+ *
+ * With the above configuration, the additional clipboard suggestions row partially covers the
+ * extra keys/terminal. Reopening the keyboard/activity does not fix the issue. This is either a bug
+ * in the Android OS where it does not consider the candidate's view height in its calculation to push
+ * up the view or because Gboard does not include the candidate's view height in the height reported
+ * to android that should be used, hence causing an overlap.
+ *
+ * Gboard logs the following entry to `logcat` when its opened with or without the suggestions bar showing:
+ * I/KeyboardViewUtil: KeyboardViewUtil.calculateMaxKeyboardBodyHeight():62 leave 500 height for app when screen height:2392, header height:176 and isFullscreenMode:false, so the max keyboard body height is:1716
+ * where `keyboard_height = screen_height - height_for_app - header_height` (62 is a hardcoded value in Gboard source code and may be a version number)
+ * So this may in fact be due to Gboard but https://stackoverflow.com/questions/57567272 suggests
+ * otherwise. Another similar report https://stackoverflow.com/questions/66761661.
+ * Also check https://github.com/termux/termux-app/issues/1539.
+ *
+ * This overlap may happen even without `enforce-char-based-input=true` for keyboards with extended layouts
+ * like number row, etc.
+ *
+ * To fix these issues, `activity_termux.xml` has the constant 1sp transparent
+ * `activity_termux_bottom_space_view` View at the bottom. This will appear as a line matching the
+ * activity theme. When {@link TermuxActivity} {@link ViewTreeObserver.OnGlobalLayoutListener} is
+ * called when any of the sub view layouts change,  like keyboard opening/closing keyboard,
+ * extra keys/input view switched, etc, we check if the bottom space view is visible or not.
+ * If its not, then we add a margin to the bottom of the root view, so that the keyboard does not
+ * overlap the extra keys/terminal, since the margin will push up the view. By default the margin
+ * added is equal to the height of the hidden part of extra keys/terminal. For Gboard's case, the
+ * hidden part equals the `header_height`. The updates to margins may cause a jitter in some cases
+ * when the view is redrawn if the margin is incorrect, but logic has been implemented to avoid that.
+ */
+public class TermuxActivityRootView extends LinearLayout implements ViewTreeObserver.OnGlobalLayoutListener {
+
+    public TermuxActivity mActivity;
+    public Integer marginBottom;
+    public Integer lastMarginBottom;
+    public long lastMarginBottomTime;
+    public long lastMarginBottomExtraTime;
+
+    /** Log root view events. */
+    private boolean ROOT_VIEW_LOGGING_ENABLED = false;
+
+    private static final String LOG_TAG = "TermuxActivityRootView";
+
+    private static int mStatusBarHeight;
+
+    public TermuxActivityRootView(Context context) {
+        super(context);
+    }
+
+    public TermuxActivityRootView(Context context, @Nullable AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public TermuxActivityRootView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    public void setActivity(TermuxActivity activity) {
+        mActivity = activity;
+    }
+
+    /**
+     * Sets whether root view logging is enabled or not.
+     *
+     * @param value The boolean value that defines the state.
+     */
+    public void setIsRootViewLoggingEnabled(boolean value) {
+        ROOT_VIEW_LOGGING_ENABLED = value;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+
+        if (marginBottom != null) {
+            if (ROOT_VIEW_LOGGING_ENABLED)
+                Logger.logVerbose(LOG_TAG, "onMeasure: Setting bottom margin to " + marginBottom);
+            ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) getLayoutParams();
+            params.setMargins(0, 0, 0, marginBottom);
+            setLayoutParams(params);
+            marginBottom = null;
+            requestLayout();
+        }
+    }
+
+    @Override
+    public void onGlobalLayout() {
+        if (mActivity == null || !mActivity.isVisible()) return;
+
+        View bottomSpaceView = mActivity.getTermuxActivityBottomSpaceView();
+        if (bottomSpaceView == null) return;
+
+        boolean root_view_logging_enabled = ROOT_VIEW_LOGGING_ENABLED;
+
+        if (root_view_logging_enabled)
+            Logger.logVerbose(LOG_TAG, ":\nonGlobalLayout:");
+
+        FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) getLayoutParams();
+
+        // Get the position Rects of the bottom space view and the main window holding it
+        Rect[] windowAndViewRects = ViewUtils.getWindowAndViewRects(bottomSpaceView, mStatusBarHeight);
+        if (windowAndViewRects == null)
+            return;
+
+        Rect windowAvailableRect = windowAndViewRects[0];
+        Rect bottomSpaceViewRect = windowAndViewRects[1];
+
+        // If the bottomSpaceViewRect is inside the windowAvailableRect, then it must be completely visible
+        //boolean isVisible = windowAvailableRect.contains(bottomSpaceViewRect); // rect.right comparison often fails in landscape
+        boolean isVisible = ViewUtils.isRectAbove(windowAvailableRect, bottomSpaceViewRect);
+        boolean isVisibleBecauseMargin = (windowAvailableRect.bottom == bottomSpaceViewRect.bottom) && params.bottomMargin > 0;
+        boolean isVisibleBecauseExtraMargin = ((bottomSpaceViewRect.bottom - windowAvailableRect.bottom) < 0);
+
+        if (root_view_logging_enabled) {
+            Logger.logVerbose(LOG_TAG, "windowAvailableRect " + ViewUtils.toRectString(windowAvailableRect) + ", bottomSpaceViewRect " + ViewUtils.toRectString(bottomSpaceViewRect));
+            Logger.logVerbose(LOG_TAG, "windowAvailableRect.bottom " + windowAvailableRect.bottom +
+                ", bottomSpaceViewRect.bottom " +bottomSpaceViewRect.bottom +
+                ", diff " + (bottomSpaceViewRect.bottom - windowAvailableRect.bottom) + ", bottom " + params.bottomMargin +
+                ", isVisible " + windowAvailableRect.contains(bottomSpaceViewRect) + ", isRectAbove " + ViewUtils.isRectAbove(windowAvailableRect, bottomSpaceViewRect) +
+                ", isVisibleBecauseMargin " + isVisibleBecauseMargin + ", isVisibleBecauseExtraMargin " + isVisibleBecauseExtraMargin);
+        }
+
+        // If the bottomSpaceViewRect is visible, then remove the margin if needed
+        if (isVisible) {
+            // If visible because of margin, i.e the bottom of bottomSpaceViewRect equals that of windowAvailableRect
+            // and a margin has been added
+            // Necessary so that we don't get stuck in an infinite loop since setting margin
+            // will call OnGlobalLayoutListener again and next time bottom space view
+            // will be visible and margin will be set to 0, which again will call
+            // OnGlobalLayoutListener...
+            // Calling addTermuxActivityRootViewGlobalLayoutListener with a delay fails to
+            // set appropriate margins when views are changed quickly since some changes
+            // may be missed.
+            if (isVisibleBecauseMargin) {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Visible due to margin");
+
+                // Once the view has been redrawn with new margin, we set margin back to 0 so that
+                // when next time onMeasure() is called, margin 0 is used. This is necessary for
+                // cases when view has been redrawn with new margin because bottom space view was
+                // hidden by keyboard and then view was redrawn again due to layout change (like
+                // keyboard symbol view is switched to), android will add margin below its new position
+                // if its greater than 0, which was already above the keyboard creating x2x margin.
+                // Adding time check since moving split screen divider in landscape causes jitter
+                // and prevents some infinite loops
+                if ((System.currentTimeMillis() - lastMarginBottomTime) > 40) {
+                    lastMarginBottomTime = System.currentTimeMillis();
+                    marginBottom = 0;
+                } else {
+                    if (root_view_logging_enabled)
+                        Logger.logVerbose(LOG_TAG, "Ignoring restoring marginBottom to 0 since called to quickly");
+                }
+
+                return;
+            }
+
+            boolean setMargin = params.bottomMargin != 0;
+
+            // If visible because of extra margin, i.e the bottom of bottomSpaceViewRect is above that of windowAvailableRect
+            // onGlobalLayout: windowAvailableRect 1408, bottomSpaceViewRect 1232, diff -176, bottom 0, isVisible true, isVisibleBecauseMargin false, isVisibleBecauseExtraMargin false
+            // onGlobalLayout: Bottom margin already equals 0
+            if (isVisibleBecauseExtraMargin) {
+                // Adding time check since prevents infinite loops, like in landscape mode in freeform mode in Taskbar
+                if ((System.currentTimeMillis() - lastMarginBottomExtraTime) > 40) {
+                    if (root_view_logging_enabled)
+                        Logger.logVerbose(LOG_TAG, "Resetting margin since visible due to extra margin");
+                    lastMarginBottomExtraTime = System.currentTimeMillis();
+                    // lastMarginBottom must be invalid. May also happen when keyboards are changed.
+                    lastMarginBottom = null;
+                    setMargin = true;
+                } else {
+                    if (root_view_logging_enabled)
+                        Logger.logVerbose(LOG_TAG, "Ignoring resetting margin since visible due to extra margin since called to quickly");
+                }
+            }
+
+            if (setMargin) {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Setting bottom margin to 0");
+                params.setMargins(0, 0, 0, 0);
+                setLayoutParams(params);
+            } else {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Bottom margin already equals 0");
+                // This is done so that when next time onMeasure() is called, lastMarginBottom is used.
+                // This is done since we **expect** the keyboard to have same dimensions next time layout
+                // changes, so best set margin while view is drawn the first time, otherwise it will
+                // cause a jitter when OnGlobalLayoutListener is called with margin 0 and it sets the
+                // likely same lastMarginBottom again and requesting a redraw. Hopefully, this logic
+                // works fine for all cases.
+                marginBottom = lastMarginBottom;
+            }
+        }
+        // ELse find the part of the extra keys/terminal that is hidden and add a margin accordingly
+        else {
+            int pxHidden = bottomSpaceViewRect.bottom - windowAvailableRect.bottom;
+
+            if (root_view_logging_enabled)
+                Logger.logVerbose(LOG_TAG, "pxHidden " + pxHidden + ", bottom " + params.bottomMargin);
+
+            boolean setMargin = params.bottomMargin != pxHidden;
+
+            // If invisible despite margin, i.e a margin was added, but the bottom of bottomSpaceViewRect
+            // is still below that of windowAvailableRect, this will trigger OnGlobalLayoutListener
+            // again, so that margins are set properly. May happen when toolbar/extra keys is disabled
+            // and enabled from left drawer, just like case for isVisibleBecauseExtraMargin.
+            // onMeasure: Setting bottom margin to 176
+            // onGlobalLayout: windowAvailableRect 1232, bottomSpaceViewRect 1408, diff 176, bottom 176, isVisible false, isVisibleBecauseMargin false, isVisibleBecauseExtraMargin false
+            // onGlobalLayout: Bottom margin already equals 176
+            if (pxHidden > 0 && params.bottomMargin > 0) {
+                if (pxHidden != params.bottomMargin) {
+                    if (root_view_logging_enabled)
+                        Logger.logVerbose(LOG_TAG, "Force setting margin to 0 since not visible due to wrong margin");
+                    pxHidden = 0;
+                } else {
+                    if (root_view_logging_enabled)
+                        Logger.logVerbose(LOG_TAG, "Force setting margin since not visible despite required margin");
+                }
+                setMargin = true;
+            }
+
+            if (pxHidden  < 0) {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Force setting margin to 0 since new margin is negative");
+                pxHidden = 0;
+            }
+
+
+            if (setMargin) {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Setting bottom margin to " + pxHidden);
+                params.setMargins(0, 0, 0, pxHidden);
+                setLayoutParams(params);
+                lastMarginBottom = pxHidden;
+            } else {
+                if (root_view_logging_enabled)
+                    Logger.logVerbose(LOG_TAG, "Bottom margin already equals " + pxHidden);
+            }
+        }
+    }
+
+    public static class WindowInsetsListener implements View.OnApplyWindowInsetsListener {
+        @Override
+        public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
+            mStatusBarHeight =  WindowInsetsCompat.toWindowInsetsCompat(insets).getInsets(WindowInsetsCompat.Type.statusBars()).top;
+            // Let view window handle insets however it wants
+            return v.onApplyWindowInsets(insets);
+        }
+    }
+
+}

app/src/main/java/com/termux/app/terminal/TermuxSessionsListViewController.java

@@ -0,0 +1,107 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Typeface;
+import android.text.SpannableString;
+import android.text.Spanned;
+import android.text.TextUtils;
+import android.text.style.StyleSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.core.content.ContextCompat;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.shell.TermuxSession;
+import com.termux.terminal.TerminalSession;
+
+import java.util.List;
+
+public class TermuxSessionsListViewController extends ArrayAdapter<TermuxSession> implements AdapterView.OnItemClickListener, AdapterView.OnItemLongClickListener {
+
+    final TermuxActivity mActivity;
+
+    final StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
+    final StyleSpan italicSpan = new StyleSpan(Typeface.ITALIC);
+
+    public TermuxSessionsListViewController(TermuxActivity activity, List<TermuxSession> sessionList) {
+        super(activity.getApplicationContext(), R.layout.item_terminal_sessions_list, sessionList);
+        this.mActivity = activity;
+    }
+
+    @SuppressLint("SetTextI18n")
+    @NonNull
+    @Override
+    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
+        View sessionRowView = convertView;
+        if (sessionRowView == null) {
+            LayoutInflater inflater = mActivity.getLayoutInflater();
+            sessionRowView = inflater.inflate(R.layout.item_terminal_sessions_list, parent, false);
+        }
+
+        TextView sessionTitleView = sessionRowView.findViewById(R.id.session_title);
+
+        TerminalSession sessionAtRow = getItem(position).getTerminalSession();
+        if (sessionAtRow == null) {
+            sessionTitleView.setText("null session");
+            return sessionRowView;
+        }
+
+        boolean isUsingBlackUI = mActivity.getProperties().isUsingBlackUI();
+
+        if (isUsingBlackUI) {
+            sessionTitleView.setBackground(
+                ContextCompat.getDrawable(mActivity, R.drawable.session_background_black_selected)
+            );
+        }
+
+        String name = sessionAtRow.mSessionName;
+        String sessionTitle = sessionAtRow.getTitle();
+
+        String numberPart = "[" + (position + 1) + "] ";
+        String sessionNamePart = (TextUtils.isEmpty(name) ? "" : name);
+        String sessionTitlePart = (TextUtils.isEmpty(sessionTitle) ? "" : ((sessionNamePart.isEmpty() ? "" : "\n") + sessionTitle));
+
+        String fullSessionTitle = numberPart + sessionNamePart + sessionTitlePart;
+        SpannableString fullSessionTitleStyled = new SpannableString(fullSessionTitle);
+        fullSessionTitleStyled.setSpan(boldSpan, 0, numberPart.length() + sessionNamePart.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        fullSessionTitleStyled.setSpan(italicSpan, numberPart.length() + sessionNamePart.length(), fullSessionTitle.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+
+        sessionTitleView.setText(fullSessionTitleStyled);
+
+        boolean sessionRunning = sessionAtRow.isRunning();
+
+        if (sessionRunning) {
+            sessionTitleView.setPaintFlags(sessionTitleView.getPaintFlags() & ~Paint.STRIKE_THRU_TEXT_FLAG);
+        } else {
+            sessionTitleView.setPaintFlags(sessionTitleView.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG);
+        }
+        int defaultColor = isUsingBlackUI ? Color.WHITE : Color.BLACK;
+        int color = sessionRunning || sessionAtRow.getExitStatus() == 0 ? defaultColor : Color.RED;
+        sessionTitleView.setTextColor(color);
+        return sessionRowView;
+    }
+
+    @Override
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        TermuxSession clickedSession = getItem(position);
+        mActivity.getTermuxTerminalSessionClient().setCurrentSession(clickedSession.getTerminalSession());
+        mActivity.getDrawer().closeDrawers();
+    }
+
+    @Override
+    public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
+        final TermuxSession selectedSession = getItem(position);
+        mActivity.getTermuxTerminalSessionClient().renameSession(selectedSession.getTerminalSession());
+        return true;
+    }
+
+}

app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionClient.java

@@ -0,0 +1,498 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.graphics.Typeface;
+import android.media.AudioAttributes;
+import android.media.SoundPool;
+import android.text.TextUtils;
+import android.widget.ListView;
+
+import com.termux.R;
+import com.termux.shared.shell.TermuxSession;
+import com.termux.shared.interact.TextInputDialogUtils;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.terminal.TermuxTerminalSessionClientBase;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.app.TermuxService;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.terminal.io.BellHandler;
+import com.termux.shared.logger.Logger;
+import com.termux.terminal.TerminalColors;
+import com.termux.terminal.TerminalSession;
+import com.termux.terminal.TextStyle;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.util.Properties;
+
+public class TermuxTerminalSessionClient extends TermuxTerminalSessionClientBase {
+
+    private final TermuxActivity mActivity;
+
+    private static final int MAX_SESSIONS = 8;
+
+    private SoundPool mBellSoundPool;
+
+    private int mBellSoundId;
+
+    private static final String LOG_TAG = "TermuxTerminalSessionClient";
+
+    public TermuxTerminalSessionClient(TermuxActivity activity) {
+        this.mActivity = activity;
+    }
+
+    /**
+     * Should be called when mActivity.onCreate() is called
+     */
+    public void onCreate() {
+        // Set terminal fonts and colors
+        checkForFontAndColors();
+    }
+
+    /**
+     * Should be called when mActivity.onStart() is called
+     */
+    public void onStart() {
+        // The service has connected, but data may have changed since we were last in the foreground.
+        // Get the session stored in shared preferences stored by {@link #onStop} if its valid,
+        // otherwise get the last session currently running.
+        if (mActivity.getTermuxService() != null) {
+            setCurrentSession(getCurrentStoredSessionOrLast());
+            termuxSessionListNotifyUpdated();
+        }
+
+        // The current terminal session may have changed while being away, force
+        // a refresh of the displayed terminal.
+        mActivity.getTerminalView().onScreenUpdated();
+    }
+
+    /**
+     * Should be called when mActivity.onResume() is called
+     */
+    public void onResume() {
+        // Just initialize the mBellSoundPool and load the sound, otherwise bell might not run
+        // the first time bell key is pressed and play() is called, since sound may not be loaded
+        // quickly enough before the call to play(). https://stackoverflow.com/questions/35435625
+        getBellSoundPool();
+    }
+
+    /**
+     * Should be called when mActivity.onStop() is called
+     */
+    public void onStop() {
+        // Store current session in shared preferences so that it can be restored later in
+        // {@link #onStart} if needed.
+        setCurrentStoredSession();
+
+        // Release mBellSoundPool resources, specially to prevent exceptions like the following to be thrown
+        // java.util.concurrent.TimeoutException: android.media.SoundPool.finalize() timed out after 10 seconds
+        // Bell is not played in background anyways
+        // Related: https://stackoverflow.com/a/28708351/14686958
+        releaseBellSoundPool();
+    }
+
+    /**
+     * Should be called when mActivity.reloadActivityStyling() is called
+     */
+    public void onReload() {
+        // Set terminal fonts and colors
+        checkForFontAndColors();
+    }
+
+
+
+    @Override
+    public void onTextChanged(TerminalSession changedSession) {
+        if (!mActivity.isVisible()) return;
+
+        if (mActivity.getCurrentSession() == changedSession) mActivity.getTerminalView().onScreenUpdated();
+    }
+
+    @Override
+    public void onTitleChanged(TerminalSession updatedSession) {
+        if (!mActivity.isVisible()) return;
+
+        if (updatedSession != mActivity.getCurrentSession()) {
+            // Only show toast for other sessions than the current one, since the user
+            // probably consciously caused the title change to change in the current session
+            // and don't want an annoying toast for that.
+            mActivity.showToast(toToastTitle(updatedSession), true);
+        }
+
+        termuxSessionListNotifyUpdated();
+    }
+
+    @Override
+    public void onSessionFinished(final TerminalSession finishedSession) {
+        TermuxService service = mActivity.getTermuxService();
+
+        if (service == null || service.wantsToStop()) {
+            // The service wants to stop as soon as possible.
+            mActivity.finishActivityIfNotFinishing();
+            return;
+        }
+
+        int index = service.getIndexOfSession(finishedSession);
+
+        // For plugin commands that expect the result back, we should immediately close the session
+        // and send the result back instead of waiting fo the user to press enter.
+        // The plugin can handle/show errors itself.
+        boolean isPluginExecutionCommandWithPendingResult = false;
+        TermuxSession termuxSession = service.getTermuxSession(index);
+        if (termuxSession != null) {
+            isPluginExecutionCommandWithPendingResult = termuxSession.getExecutionCommand().isPluginExecutionCommandWithPendingResult();
+            if (isPluginExecutionCommandWithPendingResult)
+                Logger.logVerbose(LOG_TAG, "The \"" + finishedSession.mSessionName + "\" session will be force finished automatically since result in pending.");
+        }
+
+        if (mActivity.isVisible() && finishedSession != mActivity.getCurrentSession()) {
+            // Show toast for non-current sessions that exit.
+            // Verify that session was not removed before we got told about it finishing:
+            if (index >= 0)
+                mActivity.showToast(toToastTitle(finishedSession) + " - exited", true);
+        }
+
+        if (mActivity.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK)) {
+            // On Android TV devices we need to use older behaviour because we may
+            // not be able to have multiple launcher icons.
+            if (service.getTermuxSessionsSize() > 1 || isPluginExecutionCommandWithPendingResult) {
+                removeFinishedSession(finishedSession);
+            }
+        } else {
+            // Once we have a separate launcher icon for the failsafe session, it
+            // should be safe to auto-close session on exit code '0' or '130'.
+            if (finishedSession.getExitStatus() == 0 || finishedSession.getExitStatus() == 130 || isPluginExecutionCommandWithPendingResult) {
+                removeFinishedSession(finishedSession);
+            }
+        }
+    }
+
+    @Override
+    public void onCopyTextToClipboard(TerminalSession session, String text) {
+        if (!mActivity.isVisible()) return;
+
+        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+        clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(text)));
+    }
+
+    @Override
+    public void onPasteTextFromClipboard(TerminalSession session) {
+        if (!mActivity.isVisible()) return;
+
+        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clipData = clipboard.getPrimaryClip();
+        if (clipData != null) {
+            CharSequence paste = clipData.getItemAt(0).coerceToText(mActivity);
+            if (!TextUtils.isEmpty(paste)) mActivity.getTerminalView().mEmulator.paste(paste.toString());
+        }
+    }
+
+    @Override
+    public void onBell(TerminalSession session) {
+        if (!mActivity.isVisible()) return;
+
+        switch (mActivity.getProperties().getBellBehaviour()) {
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_VIBRATE:
+                BellHandler.getInstance(mActivity).doBell();
+                break;
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_BEEP:
+                getBellSoundPool().play(mBellSoundId, 1.f, 1.f, 1, 0, 1.f);
+                break;
+            case TermuxPropertyConstants.IVALUE_BELL_BEHAVIOUR_IGNORE:
+                // Ignore the bell character.
+                break;
+        }
+    }
+
+    @Override
+    public void onColorsChanged(TerminalSession changedSession) {
+        if (mActivity.getCurrentSession() == changedSession)
+            updateBackgroundColor();
+    }
+
+    @Override
+    public void onTerminalCursorStateChange(boolean enabled) {
+        // Do not start cursor blinking thread if activity is not visible
+        if (enabled && !mActivity.isVisible()) {
+            Logger.logVerbose(LOG_TAG, "Ignoring call to start cursor blinking since activity is not visible");
+            return;
+        }
+
+        // If cursor is to enabled now, then start cursor blinking if blinking is enabled
+        // otherwise stop cursor blinking
+        mActivity.getTerminalView().setTerminalCursorBlinkerState(enabled, false);
+    }
+
+    /**
+     * Should be called when mActivity.onResetTerminalSession() is called
+     */
+    public void onResetTerminalSession() {
+        // Ensure blinker starts again after reset if cursor blinking was disabled before reset like
+        // with "tput civis" which would have called onTerminalCursorStateChange()
+        mActivity.getTerminalView().setTerminalCursorBlinkerState(true, true);
+    }
+
+
+
+    @Override
+    public Integer getTerminalCursorStyle() {
+        return mActivity.getProperties().getTerminalCursorStyle();
+    }
+
+
+
+    /** Initialize and get mBellSoundPool */
+    private synchronized SoundPool getBellSoundPool() {
+        if (mBellSoundPool == null) {
+            mBellSoundPool = new SoundPool.Builder().setMaxStreams(1).setAudioAttributes(
+                new AudioAttributes.Builder().setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
+                    .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION).build()).build();
+
+            mBellSoundId = mBellSoundPool.load(mActivity, R.raw.bell, 1);
+        }
+
+        return mBellSoundPool;
+    }
+
+    /** Release mBellSoundPool resources */
+    private synchronized void releaseBellSoundPool() {
+        if (mBellSoundPool != null) {
+            mBellSoundPool.release();
+            mBellSoundPool = null;
+        }
+    }
+
+
+
+    /** Try switching to session. */
+    public void setCurrentSession(TerminalSession session) {
+        if (session == null) return;
+
+        if (mActivity.getTerminalView().attachSession(session)) {
+            // notify about switched session if not already displaying the session
+            notifyOfSessionChange();
+        }
+
+        // We call the following even when the session is already being displayed since config may
+        // be stale, like current session not selected or scrolled to.
+        checkAndScrollToSession(session);
+        updateBackgroundColor();
+    }
+
+    void notifyOfSessionChange() {
+        if (!mActivity.isVisible()) return;
+
+        if (!mActivity.getProperties().areTerminalSessionChangeToastsDisabled()) {
+            TerminalSession session = mActivity.getCurrentSession();
+            mActivity.showToast(toToastTitle(session), false);
+        }
+    }
+
+    public void switchToSession(boolean forward) {
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return;
+
+        TerminalSession currentTerminalSession = mActivity.getCurrentSession();
+        int index = service.getIndexOfSession(currentTerminalSession);
+        int size = service.getTermuxSessionsSize();
+        if (forward) {
+            if (++index >= size) index = 0;
+        } else {
+            if (--index < 0) index = size - 1;
+        }
+
+        TermuxSession termuxSession = service.getTermuxSession(index);
+        if (termuxSession != null)
+            setCurrentSession(termuxSession.getTerminalSession());
+    }
+
+    public void switchToSession(int index) {
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return;
+
+        TermuxSession termuxSession = service.getTermuxSession(index);
+        if (termuxSession != null)
+            setCurrentSession(termuxSession.getTerminalSession());
+    }
+
+    @SuppressLint("InflateParams")
+    public void renameSession(final TerminalSession sessionToRename) {
+        if (sessionToRename == null) return;
+
+        TextInputDialogUtils.textInput(mActivity, R.string.title_rename_session, sessionToRename.mSessionName, R.string.action_rename_session_confirm, text -> {
+            sessionToRename.mSessionName = text;
+            termuxSessionListNotifyUpdated();
+        }, -1, null, -1, null, null);
+    }
+
+    public void addNewSession(boolean isFailSafe, String sessionName) {
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return;
+
+        if (service.getTermuxSessionsSize() >= MAX_SESSIONS) {
+            new AlertDialog.Builder(mActivity).setTitle(R.string.title_max_terminals_reached).setMessage(R.string.msg_max_terminals_reached)
+                .setPositiveButton(android.R.string.ok, null).show();
+        } else {
+            TerminalSession currentSession = mActivity.getCurrentSession();
+
+            String workingDirectory;
+            if (currentSession == null) {
+                workingDirectory = mActivity.getProperties().getDefaultWorkingDirectory();
+            } else {
+                workingDirectory = currentSession.getCwd();
+            }
+
+            TermuxSession newTermuxSession = service.createTermuxSession(null, null, null, workingDirectory, isFailSafe, sessionName);
+            if (newTermuxSession == null) return;
+
+            TerminalSession newTerminalSession = newTermuxSession.getTerminalSession();
+            setCurrentSession(newTerminalSession);
+
+            mActivity.getDrawer().closeDrawers();
+        }
+    }
+
+    public void setCurrentStoredSession() {
+        TerminalSession currentSession = mActivity.getCurrentSession();
+        if (currentSession != null)
+            mActivity.getPreferences().setCurrentSession(currentSession.mHandle);
+        else
+            mActivity.getPreferences().setCurrentSession(null);
+    }
+
+    /** The current session as stored or the last one if that does not exist. */
+    public TerminalSession getCurrentStoredSessionOrLast() {
+        TerminalSession stored = getCurrentStoredSession();
+
+        if (stored != null) {
+            // If a stored session is in the list of currently running sessions, then return it
+            return stored;
+        } else {
+            // Else return the last session currently running
+            TermuxService service = mActivity.getTermuxService();
+            if (service == null) return null;
+
+            TermuxSession termuxSession = service.getLastTermuxSession();
+            if (termuxSession != null)
+                return termuxSession.getTerminalSession();
+            else
+                return null;
+        }
+    }
+
+    private TerminalSession getCurrentStoredSession() {
+        String sessionHandle = mActivity.getPreferences().getCurrentSession();
+
+        // If no session is stored in shared preferences
+        if (sessionHandle == null)
+            return null;
+
+        // Check if the session handle found matches one of the currently running sessions
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return null;
+
+        return service.getTerminalSessionForHandle(sessionHandle);
+    }
+
+    public void removeFinishedSession(TerminalSession finishedSession) {
+        // Return pressed with finished session - remove it.
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return;
+
+        int index = service.removeTermuxSession(finishedSession);
+
+        int size = service.getTermuxSessionsSize();
+        if (size == 0) {
+            // There are no sessions to show, so finish the activity.
+            mActivity.finishActivityIfNotFinishing();
+        } else {
+            if (index >= size) {
+                index = size - 1;
+            }
+            TermuxSession termuxSession = service.getTermuxSession(index);
+            if (termuxSession != null)
+                setCurrentSession(termuxSession.getTerminalSession());
+        }
+    }
+
+    public void termuxSessionListNotifyUpdated() {
+        mActivity.termuxSessionListNotifyUpdated();
+    }
+
+    public void checkAndScrollToSession(TerminalSession session) {
+        if (!mActivity.isVisible()) return;
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return;
+
+        final int indexOfSession = service.getIndexOfSession(session);
+        if (indexOfSession < 0) return;
+        final ListView termuxSessionsListView = mActivity.findViewById(R.id.terminal_sessions_list);
+        if (termuxSessionsListView == null) return;
+
+        termuxSessionsListView.setItemChecked(indexOfSession, true);
+        // Delay is necessary otherwise sometimes scroll to newly added session does not happen
+        termuxSessionsListView.postDelayed(() -> termuxSessionsListView.smoothScrollToPosition(indexOfSession), 1000);
+    }
+
+
+    String toToastTitle(TerminalSession session) {
+        TermuxService service = mActivity.getTermuxService();
+        if (service == null) return null;
+
+        final int indexOfSession = service.getIndexOfSession(session);
+        if (indexOfSession < 0) return null;
+        StringBuilder toastTitle = new StringBuilder("[" + (indexOfSession + 1) + "]");
+        if (!TextUtils.isEmpty(session.mSessionName)) {
+            toastTitle.append(" ").append(session.mSessionName);
+        }
+        String title = session.getTitle();
+        if (!TextUtils.isEmpty(title)) {
+            // Space to "[${NR}] or newline after session name:
+            toastTitle.append(session.mSessionName == null ? " " : "\n");
+            toastTitle.append(title);
+        }
+        return toastTitle.toString();
+    }
+
+
+    public void checkForFontAndColors() {
+        try {
+            File colorsFile = TermuxConstants.TERMUX_COLOR_PROPERTIES_FILE;
+            File fontFile = TermuxConstants.TERMUX_FONT_FILE;
+
+            final Properties props = new Properties();
+            if (colorsFile.isFile()) {
+                try (InputStream in = new FileInputStream(colorsFile)) {
+                    props.load(in);
+                }
+            }
+
+            TerminalColors.COLOR_SCHEME.updateWith(props);
+            TerminalSession session = mActivity.getCurrentSession();
+            if (session != null && session.getEmulator() != null) {
+                session.getEmulator().mColors.reset();
+            }
+            updateBackgroundColor();
+
+            final Typeface newTypeface = (fontFile.exists() && fontFile.length() > 0) ? Typeface.createFromFile(fontFile) : Typeface.MONOSPACE;
+            mActivity.getTerminalView().setTypeface(newTypeface);
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG, "Error in checkForFontAndColors()", e);
+        }
+    }
+
+    public void updateBackgroundColor() {
+        if (!mActivity.isVisible()) return;
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session != null && session.getEmulator() != null) {
+            mActivity.getWindow().getDecorView().setBackgroundColor(session.getEmulator().mColors.mCurrentColors[TextStyle.COLOR_INDEX_BACKGROUND]);
+        }
+    }
+
+}

app/src/main/java/com/termux/app/terminal/TermuxTerminalViewClient.java

@@ -0,0 +1,766 @@
+package com.termux.app.terminal;
+
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
+import android.content.ActivityNotFoundException;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.Intent;
+import android.media.AudioManager;
+import android.net.Uri;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.view.Gravity;
+import android.view.InputDevice;
+import android.view.KeyEvent;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.Toast;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.data.UrlUtils;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.interact.MessageDialogUtils;
+import com.termux.shared.interact.ShareUtils;
+import com.termux.shared.shell.ShellUtils;
+import com.termux.shared.terminal.TermuxTerminalViewClientBase;
+import com.termux.shared.terminal.io.extrakeys.SpecialButton;
+import com.termux.shared.termux.AndroidUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.activities.ReportActivity;
+import com.termux.shared.models.ReportInfo;
+import com.termux.app.models.UserAction;
+import com.termux.app.terminal.io.KeyboardShortcut;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.termux.TermuxUtils;
+import com.termux.shared.view.KeyboardUtils;
+import com.termux.shared.view.ViewUtils;
+import com.termux.terminal.KeyHandler;
+import com.termux.terminal.TerminalBuffer;
+import com.termux.terminal.TerminalEmulator;
+import com.termux.terminal.TerminalSession;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.LinkedHashSet;
+import java.util.List;
+
+import androidx.drawerlayout.widget.DrawerLayout;
+
+public class TermuxTerminalViewClient extends TermuxTerminalViewClientBase {
+
+    final TermuxActivity mActivity;
+
+    final TermuxTerminalSessionClient mTermuxTerminalSessionClient;
+
+    /** Keeping track of the special keys acting as Ctrl and Fn for the soft keyboard and other hardware keys. */
+    boolean mVirtualControlKeyDown, mVirtualFnKeyDown;
+
+    private Runnable mShowSoftKeyboardRunnable;
+
+    private boolean mShowSoftKeyboardIgnoreOnce;
+    private boolean mShowSoftKeyboardWithDelayOnce;
+
+    private boolean mTerminalCursorBlinkerStateAlreadySet;
+
+    private static final String LOG_TAG = "TermuxTerminalViewClient";
+
+    public TermuxTerminalViewClient(TermuxActivity activity, TermuxTerminalSessionClient termuxTerminalSessionClient) {
+        this.mActivity = activity;
+        this.mTermuxTerminalSessionClient = termuxTerminalSessionClient;
+    }
+
+    public TermuxActivity getActivity() {
+        return mActivity;
+    }
+
+    /**
+     * Should be called when mActivity.onCreate() is called
+     */
+    public void onCreate() {
+        mActivity.getTerminalView().setTextSize(mActivity.getPreferences().getFontSize());
+        mActivity.getTerminalView().setKeepScreenOn(mActivity.getPreferences().shouldKeepScreenOn());
+    }
+
+    /**
+     * Should be called when mActivity.onStart() is called
+     */
+    public void onStart() {
+        // Set {@link TerminalView#TERMINAL_VIEW_KEY_LOGGING_ENABLED} value
+        // Also required if user changed the preference from {@link TermuxSettings} activity and returns
+        boolean isTerminalViewKeyLoggingEnabled = mActivity.getPreferences().isTerminalViewKeyLoggingEnabled();
+        mActivity.getTerminalView().setIsTerminalViewKeyLoggingEnabled(isTerminalViewKeyLoggingEnabled);
+
+        // Piggyback on the terminal view key logging toggle for now, should add a separate toggle in future
+        mActivity.getTermuxActivityRootView().setIsRootViewLoggingEnabled(isTerminalViewKeyLoggingEnabled);
+        ViewUtils.setIsViewUtilsLoggingEnabled(isTerminalViewKeyLoggingEnabled);
+    }
+
+    /**
+     * Should be called when mActivity.onResume() is called
+     */
+    public void onResume() {
+        // Show the soft keyboard if required
+        setSoftKeyboardState(true, false);
+
+        mTerminalCursorBlinkerStateAlreadySet = false;
+
+        if (mActivity.getTerminalView().mEmulator != null) {
+            // Start terminal cursor blinking if enabled
+            // If emulator is already set, then start blinker now, otherwise wait for onEmulatorSet()
+            // event to start it. This is needed since onEmulatorSet() may not be called after
+            // TermuxActivity is started after device display timeout with double tap and not power button.
+            setTerminalCursorBlinkerState(true);
+            mTerminalCursorBlinkerStateAlreadySet = true;
+        }
+    }
+
+    /**
+     * Should be called when mActivity.onStop() is called
+     */
+    public void onStop() {
+        // Stop terminal cursor blinking if enabled
+        setTerminalCursorBlinkerState(false);
+    }
+
+    /**
+     * Should be called when mActivity.reloadActivityStyling() is called
+     */
+    public void onReload() {
+        // Show the soft keyboard if required
+        setSoftKeyboardState(false, true);
+
+        // Start terminal cursor blinking if enabled
+        setTerminalCursorBlinkerState(true);
+    }
+
+    /**
+     * Should be called when {@link com.termux.view.TerminalView#mEmulator} is set
+     */
+    @Override
+    public void onEmulatorSet() {
+        if (!mTerminalCursorBlinkerStateAlreadySet) {
+            // Start terminal cursor blinking if enabled
+            // We need to wait for the first session to be attached that's set in
+            // TermuxActivity.onServiceConnected() and then the multiple calls to TerminalView.updateSize()
+            // where the final one eventually sets the mEmulator when width/height is not 0. Otherwise
+            // blinker will not start again if TermuxActivity is started again after exiting it with
+            // double back press. Check TerminalView.setTerminalCursorBlinkerState().
+            setTerminalCursorBlinkerState(true);
+            mTerminalCursorBlinkerStateAlreadySet = true;
+        }
+    }
+
+
+
+    @Override
+    public float onScale(float scale) {
+        if (scale < 0.9f || scale > 1.1f) {
+            boolean increase = scale > 1.f;
+            changeFontSize(increase);
+            return 1.0f;
+        }
+        return scale;
+    }
+
+
+
+    @Override
+    public void onSingleTapUp(MotionEvent e) {
+        TerminalEmulator term = mActivity.getCurrentSession().getEmulator();
+
+        if (mActivity.getProperties().shouldOpenTerminalTranscriptURLOnClick()) {
+            int[] columnAndRow = mActivity.getTerminalView().getColumnAndRow(e, true);
+            String wordAtTap = term.getScreen().getWordAtLocation(columnAndRow[0], columnAndRow[1]);
+            LinkedHashSet<CharSequence> urlSet = UrlUtils.extractUrls(wordAtTap);
+
+            if (!urlSet.isEmpty()) {
+                String url = (String) urlSet.iterator().next();
+                ShareUtils.openURL(mActivity, url);
+                return;
+            }
+        }
+
+        if (!term.isMouseTrackingActive() && !e.isFromSource(InputDevice.SOURCE_MOUSE)) {
+            if (!KeyboardUtils.areDisableSoftKeyboardFlagsSet(mActivity))
+                KeyboardUtils.showSoftKeyboard(mActivity, mActivity.getTerminalView());
+            else
+                Logger.logVerbose(LOG_TAG, "Not showing soft keyboard onSingleTapUp since its disabled");
+        }
+    }
+
+    @Override
+    public boolean shouldBackButtonBeMappedToEscape() {
+        return mActivity.getProperties().isBackKeyTheEscapeKey();
+    }
+
+    @Override
+    public boolean shouldEnforceCharBasedInput() {
+        return mActivity.getProperties().isEnforcingCharBasedInput();
+    }
+
+    @Override
+    public boolean shouldUseCtrlSpaceWorkaround() {
+        return mActivity.getProperties().isUsingCtrlSpaceWorkaround();
+    }
+
+    @Override
+    public boolean isTerminalViewSelected() {
+        return mActivity.getTerminalToolbarViewPager() == null || mActivity.isTerminalViewSelected();
+    }
+
+
+
+    @Override
+    public void copyModeChanged(boolean copyMode) {
+        // Disable drawer while copying.
+        mActivity.getDrawer().setDrawerLockMode(copyMode ? DrawerLayout.LOCK_MODE_LOCKED_CLOSED : DrawerLayout.LOCK_MODE_UNLOCKED);
+    }
+
+
+
+    @SuppressLint("RtlHardcoded")
+    @Override
+    public boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession currentSession) {
+        if (handleVirtualKeys(keyCode, e, true)) return true;
+
+        if (keyCode == KeyEvent.KEYCODE_ENTER && !currentSession.isRunning()) {
+            mTermuxTerminalSessionClient.removeFinishedSession(currentSession);
+            return true;
+        } else if (!mActivity.getProperties().areHardwareKeyboardShortcutsDisabled() &&
+            e.isCtrlPressed() && e.isAltPressed()) {
+            // Get the unmodified code point:
+            int unicodeChar = e.getUnicodeChar(0);
+
+            if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN || unicodeChar == 'n'/* next */) {
+                mTermuxTerminalSessionClient.switchToSession(true);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_UP || unicodeChar == 'p' /* previous */) {
+                mTermuxTerminalSessionClient.switchToSession(false);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
+                mActivity.getDrawer().openDrawer(Gravity.LEFT);
+            } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
+                mActivity.getDrawer().closeDrawers();
+            } else if (unicodeChar == 'k'/* keyboard */) {
+                onToggleSoftKeyboardRequest();
+            } else if (unicodeChar == 'm'/* menu */) {
+                mActivity.getTerminalView().showContextMenu();
+            } else if (unicodeChar == 'r'/* rename */) {
+                mTermuxTerminalSessionClient.renameSession(currentSession);
+            } else if (unicodeChar == 'c'/* create */) {
+                mTermuxTerminalSessionClient.addNewSession(false, null);
+            } else if (unicodeChar == 'u' /* urls */) {
+                showUrlSelection();
+            } else if (unicodeChar == 'v') {
+                doPaste();
+            } else if (unicodeChar == '+' || e.getUnicodeChar(KeyEvent.META_SHIFT_ON) == '+') {
+                // We also check for the shifted char here since shift may be required to produce '+',
+                // see https://github.com/termux/termux-api/issues/2
+                changeFontSize(true);
+            } else if (unicodeChar == '-') {
+                changeFontSize(false);
+            } else if (unicodeChar >= '1' && unicodeChar <= '9') {
+                int index = unicodeChar - '1';
+                mTermuxTerminalSessionClient.switchToSession(index);
+            }
+            return true;
+        }
+
+        return false;
+
+    }
+
+
+
+    @Override
+    public boolean onKeyUp(int keyCode, KeyEvent e) {
+        // If emulator is not set, like if bootstrap installation failed and user dismissed the error
+        // dialog, then just exit the activity, otherwise they will be stuck in a broken state.
+        if (keyCode == KeyEvent.KEYCODE_BACK && mActivity.getTerminalView().mEmulator == null) {
+            mActivity.finishActivityIfNotFinishing();
+            return true;
+        }
+
+        return handleVirtualKeys(keyCode, e, false);
+    }
+
+    /** Handle dedicated volume buttons as virtual keys if applicable. */
+    private boolean handleVirtualKeys(int keyCode, KeyEvent event, boolean down) {
+        InputDevice inputDevice = event.getDevice();
+        if (mActivity.getProperties().areVirtualVolumeKeysDisabled()) {
+            return false;
+        } else if (inputDevice != null && inputDevice.getKeyboardType() == InputDevice.KEYBOARD_TYPE_ALPHABETIC) {
+            // Do not steal dedicated buttons from a full external keyboard.
+            return false;
+        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
+            mVirtualControlKeyDown = down;
+            return true;
+        } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
+            mVirtualFnKeyDown = down;
+            return true;
+        }
+        return false;
+    }
+
+
+
+    @Override
+    public boolean readControlKey() {
+        return readExtraKeysSpecialButton(SpecialButton.CTRL) || mVirtualControlKeyDown;
+    }
+
+    @Override
+    public boolean readAltKey() {
+        return readExtraKeysSpecialButton(SpecialButton.ALT);
+    }
+
+    @Override
+    public boolean readShiftKey() {
+        return readExtraKeysSpecialButton(SpecialButton.SHIFT);
+    }
+
+    @Override
+    public boolean readFnKey() {
+        return readExtraKeysSpecialButton(SpecialButton.FN);
+    }
+
+    public boolean readExtraKeysSpecialButton(SpecialButton specialButton) {
+        if (mActivity.getExtraKeysView() == null) return false;
+        Boolean state = mActivity.getExtraKeysView().readSpecialButton(specialButton, true);
+        if (state == null) {
+            Logger.logError(LOG_TAG,"Failed to read an unregistered " + specialButton + " special button value from extra keys.");
+            return false;
+        }
+        return state;
+    }
+
+    @Override
+    public boolean onLongPress(MotionEvent event) {
+        return false;
+    }
+
+
+
+    @Override
+    public boolean onCodePoint(final int codePoint, boolean ctrlDown, TerminalSession session) {
+        if (mVirtualFnKeyDown) {
+            int resultingKeyCode = -1;
+            int resultingCodePoint = -1;
+            boolean altDown = false;
+            int lowerCase = Character.toLowerCase(codePoint);
+            switch (lowerCase) {
+                // Arrow keys.
+                case 'w':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_UP;
+                    break;
+                case 'a':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_LEFT;
+                    break;
+                case 's':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_DOWN;
+                    break;
+                case 'd':
+                    resultingKeyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
+                    break;
+
+                // Page up and down.
+                case 'p':
+                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_UP;
+                    break;
+                case 'n':
+                    resultingKeyCode = KeyEvent.KEYCODE_PAGE_DOWN;
+                    break;
+
+                // Some special keys:
+                case 't':
+                    resultingKeyCode = KeyEvent.KEYCODE_TAB;
+                    break;
+                case 'i':
+                    resultingKeyCode = KeyEvent.KEYCODE_INSERT;
+                    break;
+                case 'h':
+                    resultingCodePoint = '~';
+                    break;
+
+                // Special characters to input.
+                case 'u':
+                    resultingCodePoint = '_';
+                    break;
+                case 'l':
+                    resultingCodePoint = '|';
+                    break;
+
+                // Function keys.
+                case '1':
+                case '2':
+                case '3':
+                case '4':
+                case '5':
+                case '6':
+                case '7':
+                case '8':
+                case '9':
+                    resultingKeyCode = (codePoint - '1') + KeyEvent.KEYCODE_F1;
+                    break;
+                case '0':
+                    resultingKeyCode = KeyEvent.KEYCODE_F10;
+                    break;
+
+                // Other special keys.
+                case 'e':
+                    resultingCodePoint = /*Escape*/ 27;
+                    break;
+                case '.':
+                    resultingCodePoint = /*^.*/ 28;
+                    break;
+
+                case 'b': // alt+b, jumping backward in readline.
+                case 'f': // alf+f, jumping forward in readline.
+                case 'x': // alt+x, common in emacs.
+                    resultingCodePoint = lowerCase;
+                    altDown = true;
+                    break;
+
+                // Volume control.
+                case 'v':
+                    resultingCodePoint = -1;
+                    AudioManager audio = (AudioManager) mActivity.getSystemService(Context.AUDIO_SERVICE);
+                    audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
+                    break;
+
+                // Writing mode:
+                case 'q':
+                case 'k':
+                    mActivity.toggleTerminalToolbar();
+                    mVirtualFnKeyDown=false; // force disable fn key down to restore keyboard input into terminal view, fixes termux/termux-app#1420
+                    break;
+            }
+
+            if (resultingKeyCode != -1) {
+                TerminalEmulator term = session.getEmulator();
+                session.write(KeyHandler.getCode(resultingKeyCode, 0, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode()));
+            } else if (resultingCodePoint != -1) {
+                session.writeCodePoint(altDown, resultingCodePoint);
+            }
+            return true;
+        } else if (ctrlDown) {
+            if (codePoint == 106 /* Ctrl+j or \n */ && !session.isRunning()) {
+                mTermuxTerminalSessionClient.removeFinishedSession(session);
+                return true;
+            }
+
+            List<KeyboardShortcut> shortcuts = mActivity.getProperties().getSessionShortcuts();
+            if (shortcuts != null && !shortcuts.isEmpty()) {
+                int codePointLowerCase = Character.toLowerCase(codePoint);
+                for (int i = shortcuts.size() - 1; i >= 0; i--) {
+                    KeyboardShortcut shortcut = shortcuts.get(i);
+                    if (codePointLowerCase == shortcut.codePoint) {
+                        switch (shortcut.shortcutAction) {
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_CREATE_SESSION:
+                                mTermuxTerminalSessionClient.addNewSession(false, null);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_NEXT_SESSION:
+                                mTermuxTerminalSessionClient.switchToSession(true);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_PREVIOUS_SESSION:
+                                mTermuxTerminalSessionClient.switchToSession(false);
+                                return true;
+                            case TermuxPropertyConstants.ACTION_SHORTCUT_RENAME_SESSION:
+                                mTermuxTerminalSessionClient.renameSession(mActivity.getCurrentSession());
+                                return true;
+                        }
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+
+
+    public void changeFontSize(boolean increase) {
+        mActivity.getPreferences().changeFontSize(increase);
+        mActivity.getTerminalView().setTextSize(mActivity.getPreferences().getFontSize());
+    }
+
+
+
+    /**
+     * Called when user requests the soft keyboard to be toggled via "KEYBOARD" toggle button in
+     * drawer or extra keys, or with ctrl+alt+k hardware keyboard shortcut.
+     */
+    public void onToggleSoftKeyboardRequest() {
+        // If soft keyboard toggle behaviour is enable/disabled
+        if (mActivity.getProperties().shouldEnableDisableSoftKeyboardOnToggle()) {
+            // If soft keyboard is visible
+            if (!KeyboardUtils.areDisableSoftKeyboardFlagsSet(mActivity)) {
+                Logger.logVerbose(LOG_TAG, "Disabling soft keyboard on toggle");
+                mActivity.getPreferences().setSoftKeyboardEnabled(false);
+                KeyboardUtils.disableSoftKeyboard(mActivity, mActivity.getTerminalView());
+            } else {
+                // Show with a delay, otherwise pressing keyboard toggle won't show the keyboard after
+                // switching back from another app if keyboard was previously disabled by user.
+                // Also request focus, since it wouldn't have been requested at startup by
+                // setSoftKeyboardState if keyboard was disabled. #2112
+                Logger.logVerbose(LOG_TAG, "Enabling soft keyboard on toggle");
+                mActivity.getPreferences().setSoftKeyboardEnabled(true);
+                KeyboardUtils.clearDisableSoftKeyboardFlags(mActivity);
+                if(mShowSoftKeyboardWithDelayOnce) {
+                    mShowSoftKeyboardWithDelayOnce = false;
+                    mActivity.getTerminalView().postDelayed(getShowSoftKeyboardRunnable(), 500);
+                    mActivity.getTerminalView().requestFocus();
+                } else
+                    KeyboardUtils.showSoftKeyboard(mActivity, mActivity.getTerminalView());
+            }
+        }
+        // If soft keyboard toggle behaviour is show/hide
+        else {
+            // If soft keyboard is disabled by user for Termux
+            if (!mActivity.getPreferences().isSoftKeyboardEnabled()) {
+                Logger.logVerbose(LOG_TAG, "Maintaining disabled soft keyboard on toggle");
+                KeyboardUtils.disableSoftKeyboard(mActivity, mActivity.getTerminalView());
+            } else {
+                Logger.logVerbose(LOG_TAG, "Showing/Hiding soft keyboard on toggle");
+                KeyboardUtils.clearDisableSoftKeyboardFlags(mActivity);
+                KeyboardUtils.toggleSoftKeyboard(mActivity);
+            }
+        }
+    }
+
+    public void setSoftKeyboardState(boolean isStartup, boolean isReloadTermuxProperties) {
+        boolean noShowKeyboard = false;
+
+        // Requesting terminal view focus is necessary regardless of if soft keyboard is to be
+        // disabled or hidden at startup, otherwise if hardware keyboard is attached and user
+        // starts typing on hardware keyboard without tapping on the terminal first, then a colour
+        // tint will be added to the terminal as highlight for the focussed view. Test with a light
+        // theme.
+
+        // If soft keyboard is disabled by user for Termux (check function docs for Termux behaviour info)
+        if (KeyboardUtils.shouldSoftKeyboardBeDisabled(mActivity,
+            mActivity.getPreferences().isSoftKeyboardEnabled(),
+            mActivity.getPreferences().isSoftKeyboardEnabledOnlyIfNoHardware())) {
+            Logger.logVerbose(LOG_TAG, "Maintaining disabled soft keyboard");
+            KeyboardUtils.disableSoftKeyboard(mActivity, mActivity.getTerminalView());
+            mActivity.getTerminalView().requestFocus();
+            noShowKeyboard = true;
+            // Delay is only required if onCreate() is called like when Termux app is exited with
+            // double back press, not when Termux app is switched back from another app and keyboard
+            // toggle is pressed to enable keyboard
+            if (isStartup && mActivity.isOnResumeAfterOnCreate())
+                mShowSoftKeyboardWithDelayOnce = true;
+        } else {
+            // Set flag to automatically push up TerminalView when keyboard is opened instead of showing over it
+            KeyboardUtils.setSoftInputModeAdjustResize(mActivity);
+
+            // Clear any previous flags to disable soft keyboard in case setting updated
+            KeyboardUtils.clearDisableSoftKeyboardFlags(mActivity);
+
+            // If soft keyboard is to be hidden on startup
+            if (isStartup && mActivity.getProperties().shouldSoftKeyboardBeHiddenOnStartup()) {
+                Logger.logVerbose(LOG_TAG, "Hiding soft keyboard on startup");
+                // Required to keep keyboard hidden when Termux app is switched back from another app
+                KeyboardUtils.setSoftKeyboardAlwaysHiddenFlags(mActivity);
+
+                KeyboardUtils.hideSoftKeyboard(mActivity, mActivity.getTerminalView());
+                mActivity.getTerminalView().requestFocus();
+                noShowKeyboard = true;
+                // Required to keep keyboard hidden on app startup
+                mShowSoftKeyboardIgnoreOnce = true;
+            }
+        }
+
+        mActivity.getTerminalView().setOnFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View view, boolean hasFocus) {
+                // Force show soft keyboard if TerminalView or toolbar text input view has
+                // focus and close it if they don't
+                boolean textInputViewHasFocus = false;
+                final EditText textInputView =  mActivity.findViewById(R.id.terminal_toolbar_text_input);
+                if (textInputView != null) textInputViewHasFocus = textInputView.hasFocus();
+
+                if (hasFocus || textInputViewHasFocus) {
+                    if (mShowSoftKeyboardIgnoreOnce) {
+                        mShowSoftKeyboardIgnoreOnce = false; return;
+                    }
+                    Logger.logVerbose(LOG_TAG, "Showing soft keyboard on focus change");
+                } else {
+                    Logger.logVerbose(LOG_TAG, "Hiding soft keyboard on focus change");
+                }
+
+                KeyboardUtils.setSoftKeyboardVisibility(getShowSoftKeyboardRunnable(), mActivity, mActivity.getTerminalView(), hasFocus || textInputViewHasFocus);
+            }
+        });
+
+        // Do not force show soft keyboard if termux-reload-settings command was run with hardware keyboard
+        // or soft keyboard is to be hidden or is disabled
+        if (!isReloadTermuxProperties && !noShowKeyboard) {
+            // Request focus for TerminalView
+            // Also show the keyboard, since onFocusChange will not be called if TerminalView already
+            // had focus on startup to show the keyboard, like when opening url with context menu
+            // "Select URL" long press and returning to Termux app with back button. This
+            // will also show keyboard even if it was closed before opening url. #2111
+            Logger.logVerbose(LOG_TAG, "Requesting TerminalView focus and showing soft keyboard");
+            mActivity.getTerminalView().requestFocus();
+            mActivity.getTerminalView().postDelayed(getShowSoftKeyboardRunnable(), 300);
+        }
+    }
+
+    private Runnable getShowSoftKeyboardRunnable() {
+        if (mShowSoftKeyboardRunnable == null) {
+            mShowSoftKeyboardRunnable = () -> {
+                KeyboardUtils.showSoftKeyboard(mActivity, mActivity.getTerminalView());
+            };
+        }
+        return mShowSoftKeyboardRunnable;
+    }
+
+
+
+    public void setTerminalCursorBlinkerState(boolean start) {
+        if (start) {
+            // If set/update the cursor blinking rate is successful, then enable cursor blinker
+            if (mActivity.getTerminalView().setTerminalCursorBlinkerRate(mActivity.getProperties().getTerminalCursorBlinkRate()))
+                mActivity.getTerminalView().setTerminalCursorBlinkerState(true, true);
+            else
+                Logger.logError(LOG_TAG,"Failed to start cursor blinker");
+        } else {
+            // Disable cursor blinker
+            mActivity.getTerminalView().setTerminalCursorBlinkerState(false, true);
+        }
+    }
+
+
+
+    public void shareSessionTranscript() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        String transcriptText = ShellUtils.getTerminalSessionTranscriptText(session, false, true);
+        if (transcriptText == null) return;
+
+        try {
+            // See https://github.com/termux/termux-app/issues/1166.
+            Intent intent = new Intent(Intent.ACTION_SEND);
+            intent.setType("text/plain");
+            transcriptText = DataUtils.getTruncatedCommandOutput(transcriptText, DataUtils.TRANSACTION_SIZE_LIMIT_IN_BYTES, false, true, false).trim();
+            intent.putExtra(Intent.EXTRA_TEXT, transcriptText);
+            intent.putExtra(Intent.EXTRA_SUBJECT, mActivity.getString(R.string.title_share_transcript));
+            mActivity.startActivity(Intent.createChooser(intent, mActivity.getString(R.string.title_share_transcript_with)));
+        } catch (Exception e) {
+            Logger.logStackTraceWithMessage(LOG_TAG,"Failed to get share session transcript of length " + transcriptText.length(), e);
+        }
+    }
+
+    public void showUrlSelection() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        String text = ShellUtils.getTerminalSessionTranscriptText(session, true, true);
+
+        LinkedHashSet<CharSequence> urlSet = UrlUtils.extractUrls(text);
+        if (urlSet.isEmpty()) {
+            new AlertDialog.Builder(mActivity).setMessage(R.string.title_select_url_none_found).show();
+            return;
+        }
+
+        final CharSequence[] urls = urlSet.toArray(new CharSequence[0]);
+        Collections.reverse(Arrays.asList(urls)); // Latest first.
+
+        // Click to copy url to clipboard:
+        final AlertDialog dialog = new AlertDialog.Builder(mActivity).setItems(urls, (di, which) -> {
+            String url = (String) urls[which];
+            ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+            clipboard.setPrimaryClip(new ClipData(null, new String[]{"text/plain"}, new ClipData.Item(url)));
+            Toast.makeText(mActivity, R.string.msg_select_url_copied_to_clipboard, Toast.LENGTH_LONG).show();
+        }).setTitle(R.string.title_select_url_dialog).create();
+
+        // Long press to open URL:
+        dialog.setOnShowListener(di -> {
+            ListView lv = dialog.getListView(); // this is a ListView with your "buds" in it
+            lv.setOnItemLongClickListener((parent, view, position, id) -> {
+                dialog.dismiss();
+                String url = (String) urls[position];
+                ShareUtils.openURL(mActivity, url);
+                return true;
+            });
+        });
+
+        dialog.show();
+    }
+
+    public void reportIssueFromTranscript() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+
+        final String transcriptText = ShellUtils.getTerminalSessionTranscriptText(session, false, true);
+        if (transcriptText == null) return;
+
+        MessageDialogUtils.showMessage(mActivity, TermuxConstants.TERMUX_APP_NAME + " Report Issue",
+            mActivity.getString(R.string.msg_add_termux_debug_info),
+            mActivity.getString(R.string.action_yes), (dialog, which) -> reportIssueFromTranscript(transcriptText, true),
+            mActivity.getString(R.string.action_no), (dialog, which) -> reportIssueFromTranscript(transcriptText, false),
+            null);
+    }
+
+    private void reportIssueFromTranscript(String transcriptText, boolean addTermuxDebugInfo) {
+        Logger.showToast(mActivity, mActivity.getString(R.string.msg_generating_report), true);
+
+        new Thread() {
+            @Override
+            public void run() {
+                StringBuilder reportString = new StringBuilder();
+
+                String title = TermuxConstants.TERMUX_APP_NAME + " Report Issue";
+
+                reportString.append("## Transcript\n");
+                reportString.append("\n").append(MarkdownUtils.getMarkdownCodeForString(transcriptText, true));
+                reportString.append("\n##\n");
+
+                reportString.append("\n\n").append(TermuxUtils.getAppInfoMarkdownString(mActivity, true));
+                reportString.append("\n\n").append(AndroidUtils.getDeviceInfoMarkdownString(mActivity));
+
+                String termuxAptInfo = TermuxUtils.geAPTInfoMarkdownString(mActivity);
+                if (termuxAptInfo != null)
+                    reportString.append("\n\n").append(termuxAptInfo);
+
+                if (addTermuxDebugInfo) {
+                    String termuxDebugInfo = TermuxUtils.getTermuxDebugMarkdownString(mActivity);
+                    if (termuxDebugInfo != null)
+                        reportString.append("\n\n").append(termuxDebugInfo);
+                }
+
+                String userActionName = UserAction.REPORT_ISSUE_FROM_TRANSCRIPT.getName();
+                ReportActivity.startReportActivity(mActivity,
+                    new ReportInfo(userActionName,
+                        TermuxConstants.TERMUX_APP.TERMUX_ACTIVITY_NAME, title, null,
+                        reportString.toString(), "\n\n" + TermuxUtils.getReportIssueMarkdownString(mActivity),
+                        false,
+                        userActionName,
+                        Environment.getExternalStorageDirectory() + "/" +
+                            FileUtils.sanitizeFileName(TermuxConstants.TERMUX_APP_NAME + "-" + userActionName + ".log", true, true)));
+            }
+        }.start();
+    }
+
+    public void doPaste() {
+        TerminalSession session = mActivity.getCurrentSession();
+        if (session == null) return;
+        if (!session.isRunning()) return;
+
+        ClipboardManager clipboard = (ClipboardManager) mActivity.getSystemService(Context.CLIPBOARD_SERVICE);
+        ClipData clipData = clipboard.getPrimaryClip();
+        if (clipData == null) return;
+        CharSequence paste = clipData.getItemAt(0).coerceToText(mActivity);
+        if (!TextUtils.isEmpty(paste))
+            session.getEmulator().paste(paste.toString());
+    }
+
+}

app/src/main/java/com/termux/app/terminal/io/FullScreenWorkAround.java

@@ -0,0 +1,68 @@
+package com.termux.app.terminal.io;
+
+import android.graphics.Rect;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.termux.app.TermuxActivity;
+
+/**
+ * Work around for fullscreen mode in Termux to fix ExtraKeysView not being visible.
+ * This class is derived from:
+ * https://stackoverflow.com/questions/7417123/android-how-to-adjust-layout-in-full-screen-mode-when-softkeyboard-is-visible
+ * and has some additional tweaks
+ * ---
+ * For more information, see https://issuetracker.google.com/issues/36911528
+ */
+public class FullScreenWorkAround {
+    private final View mChildOfContent;
+    private int mUsableHeightPrevious;
+    private final ViewGroup.LayoutParams mViewGroupLayoutParams;
+
+    private final int mNavBarHeight;
+
+
+    public static void apply(TermuxActivity activity) {
+        new FullScreenWorkAround(activity);
+    }
+
+    private FullScreenWorkAround(TermuxActivity activity) {
+        ViewGroup content = activity.findViewById(android.R.id.content);
+        mChildOfContent = content.getChildAt(0);
+        mViewGroupLayoutParams = mChildOfContent.getLayoutParams();
+        mNavBarHeight = activity.getNavBarHeight();
+        mChildOfContent.getViewTreeObserver().addOnGlobalLayoutListener(this::possiblyResizeChildOfContent);
+    }
+
+    private void possiblyResizeChildOfContent() {
+        int usableHeightNow = computeUsableHeight();
+        if (usableHeightNow != mUsableHeightPrevious) {
+            int usableHeightSansKeyboard = mChildOfContent.getRootView().getHeight();
+            int heightDifference = usableHeightSansKeyboard - usableHeightNow;
+            if (heightDifference > (usableHeightSansKeyboard / 4)) {
+                // keyboard probably just became visible
+
+                // ensures that usable layout space does not extend behind the
+                // soft keyboard, causing the extra keys to not be visible
+                mViewGroupLayoutParams.height = (usableHeightSansKeyboard - heightDifference) + getNavBarHeight();
+            } else {
+                // keyboard probably just became hidden
+                mViewGroupLayoutParams.height = usableHeightSansKeyboard;
+            }
+            mChildOfContent.requestLayout();
+            mUsableHeightPrevious = usableHeightNow;
+        }
+    }
+
+    private int getNavBarHeight() {
+        return mNavBarHeight;
+    }
+
+    private int computeUsableHeight() {
+        Rect r = new Rect();
+        mChildOfContent.getWindowVisibleDisplayFrame(r);
+        return (r.bottom - r.top);
+    }
+
+}
+

app/src/main/java/com/termux/app/terminal/io/KeyboardShortcut.java

@@ -0,0 +1,13 @@
+package com.termux.app.terminal.io;
+
+public class KeyboardShortcut {
+
+    public final int codePoint;
+    public final int shortcutAction;
+
+    public KeyboardShortcut(int codePoint, int shortcutAction) {
+        this.codePoint = codePoint;
+        this.shortcutAction = shortcutAction;
+    }
+
+}

app/src/main/java/com/termux/app/terminal/io/TerminalToolbarViewPager.java

@@ -0,0 +1,117 @@
+package com.termux.app.terminal.io;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+
+import androidx.annotation.NonNull;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
+import com.termux.R;
+import com.termux.app.TermuxActivity;
+import com.termux.shared.terminal.io.extrakeys.ExtraKeysView;
+import com.termux.terminal.TerminalSession;
+
+public class TerminalToolbarViewPager {
+
+    public static class PageAdapter extends PagerAdapter {
+
+        final TermuxActivity mActivity;
+        String mSavedTextInput;
+
+        public PageAdapter(TermuxActivity activity, String savedTextInput) {
+            this.mActivity = activity;
+            this.mSavedTextInput = savedTextInput;
+        }
+
+        @Override
+        public int getCount() {
+            return 2;
+        }
+
+        @Override
+        public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+            return view == object;
+        }
+
+        @NonNull
+        @Override
+        public Object instantiateItem(@NonNull ViewGroup collection, int position) {
+            LayoutInflater inflater = LayoutInflater.from(mActivity);
+            View layout;
+            if (position == 0) {
+                layout = inflater.inflate(R.layout.view_terminal_toolbar_extra_keys, collection, false);
+                ExtraKeysView extraKeysView = (ExtraKeysView) layout;
+                extraKeysView.setExtraKeysViewClient(new TermuxTerminalExtraKeys(mActivity.getTerminalView(),
+                    mActivity.getTermuxTerminalViewClient(), mActivity.getTermuxTerminalSessionClient()));
+                extraKeysView.setButtonTextAllCaps(mActivity.getProperties().shouldExtraKeysTextBeAllCaps());
+                mActivity.setExtraKeysView(extraKeysView);
+                extraKeysView.reload(mActivity.getProperties().getExtraKeysInfo());
+
+                // apply extra keys fix if enabled in prefs
+                if (mActivity.getProperties().isUsingFullScreen() && mActivity.getProperties().isUsingFullScreenWorkAround()) {
+                    FullScreenWorkAround.apply(mActivity);
+                }
+
+            } else {
+                layout = inflater.inflate(R.layout.view_terminal_toolbar_text_input, collection, false);
+                final EditText editText = layout.findViewById(R.id.terminal_toolbar_text_input);
+
+                if (mSavedTextInput != null) {
+                    editText.setText(mSavedTextInput);
+                    mSavedTextInput = null;
+                }
+
+                editText.setOnEditorActionListener((v, actionId, event) -> {
+                    TerminalSession session = mActivity.getCurrentSession();
+                    if (session != null) {
+                        if (session.isRunning()) {
+                            String textToSend = editText.getText().toString();
+                            if (textToSend.length() == 0) textToSend = "\r";
+                            session.write(textToSend);
+                        } else {
+                            mActivity.getTermuxTerminalSessionClient().removeFinishedSession(session);
+                        }
+                        editText.setText("");
+                    }
+                    return true;
+                });
+            }
+            collection.addView(layout);
+            return layout;
+        }
+
+        @Override
+        public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
+            collection.removeView((View) view);
+        }
+
+    }
+
+
+
+    public static class OnPageChangeListener extends ViewPager.SimpleOnPageChangeListener {
+
+        final TermuxActivity mActivity;
+        final ViewPager mTerminalToolbarViewPager;
+
+        public OnPageChangeListener(TermuxActivity activity, ViewPager viewPager) {
+            this.mActivity = activity;
+            this.mTerminalToolbarViewPager = viewPager;
+        }
+
+        @Override
+        public void onPageSelected(int position) {
+            if (position == 0) {
+                mActivity.getTerminalView().requestFocus();
+            } else {
+                final EditText editText = mTerminalToolbarViewPager.findViewById(R.id.terminal_toolbar_text_input);
+                if (editText != null) editText.requestFocus();
+            }
+        }
+
+    }
+
+}

app/src/main/java/com/termux/app/terminal/io/TermuxTerminalExtraKeys.java

@@ -0,0 +1,49 @@
+package com.termux.app.terminal.io;
+
+import android.annotation.SuppressLint;
+import android.view.Gravity;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.drawerlayout.widget.DrawerLayout;
+
+import com.termux.app.terminal.TermuxTerminalSessionClient;
+import com.termux.app.terminal.TermuxTerminalViewClient;
+import com.termux.shared.terminal.io.TerminalExtraKeys;
+import com.termux.view.TerminalView;
+
+public class TermuxTerminalExtraKeys extends TerminalExtraKeys {
+
+
+    TermuxTerminalViewClient mTermuxTerminalViewClient;
+    TermuxTerminalSessionClient mTermuxTerminalSessionClient;
+
+    public TermuxTerminalExtraKeys(@NonNull TerminalView terminalView,
+                                   TermuxTerminalViewClient termuxTerminalViewClient,
+                                   TermuxTerminalSessionClient termuxTerminalSessionClient) {
+        super(terminalView);
+        mTermuxTerminalViewClient = termuxTerminalViewClient;
+        mTermuxTerminalSessionClient = termuxTerminalSessionClient;
+    }
+
+    @SuppressLint("RtlHardcoded")
+    @Override
+    public void onTerminalExtraKeyButtonClick(View view, String key, boolean ctrlDown, boolean altDown, boolean shiftDown, boolean fnDown) {
+        if ("KEYBOARD".equals(key)) {
+            if(mTermuxTerminalViewClient != null)
+                mTermuxTerminalViewClient.onToggleSoftKeyboardRequest();
+        } else if ("DRAWER".equals(key)) {
+            DrawerLayout drawerLayout = mTermuxTerminalViewClient.getActivity().getDrawer();
+            if (drawerLayout.isDrawerOpen(Gravity.LEFT))
+                drawerLayout.closeDrawer(Gravity.LEFT);
+            else
+                drawerLayout.openDrawer(Gravity.LEFT);
+        } else if ("PASTE".equals(key)) {
+            if(mTermuxTerminalSessionClient != null)
+                mTermuxTerminalSessionClient.onPasteTextFromClipboard(null);
+        } else {
+            super.onTerminalExtraKeyButtonClick(view, key, ctrlDown, altDown, shiftDown, fnDown);
+        }
+    }
+
+}

app/src/main/java/com/termux/app/utils/CrashUtils.java

@@ -0,0 +1,214 @@
+package com.termux.app.utils;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.os.Environment;
+
+import androidx.annotation.Nullable;
+
+import com.termux.R;
+import com.termux.shared.activities.ReportActivity;
+import com.termux.shared.models.errors.Error;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.models.ReportInfo;
+import com.termux.app.models.UserAction;
+import com.termux.shared.notification.TermuxNotificationUtils;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxPreferenceConstants;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.termux.AndroidUtils;
+import com.termux.shared.termux.TermuxUtils;
+
+import com.termux.shared.termux.TermuxConstants;
+
+import java.nio.charset.Charset;
+
+public class CrashUtils {
+
+    private static final String LOG_TAG = "CrashUtils";
+
+    /**
+     * Notify the user of an app crash at last run by reading the crash info from the crash log file
+     * at {@link TermuxConstants#TERMUX_CRASH_LOG_FILE_PATH}. The crash log file would have been
+     * created by {@link com.termux.shared.crash.CrashHandler}.
+     *
+     * If the crash log file exists and is not empty and
+     * {@link TermuxPreferenceConstants.TERMUX_APP#KEY_CRASH_REPORT_NOTIFICATIONS_ENABLED} is
+     * enabled, then a notification will be shown for the crash on the
+     * {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME} channel, otherwise nothing will be done.
+     *
+     * After reading from the crash log file, it will be moved to {@link TermuxConstants#TERMUX_CRASH_LOG_BACKUP_FILE_PATH}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param logTagParam The log tag to use for logging.
+     */
+    public static void notifyAppCrashOnLastRun(final Context context, final String logTagParam) {
+        if (context == null) return;
+
+        TermuxAppSharedPreferences preferences = TermuxAppSharedPreferences.build(context);
+        if (preferences == null) return;
+
+        // If user has disabled notifications for crashes
+        if (!preferences.areCrashReportNotificationsEnabled())
+            return;
+
+        new Thread() {
+            @Override
+            public void run() {
+                String logTag = DataUtils.getDefaultIfNull(logTagParam, LOG_TAG);
+
+                if (!FileUtils.regularFileExists(TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, false))
+                    return;
+
+                Error error;
+                StringBuilder reportStringBuilder = new StringBuilder();
+
+                // Read report string from crash log file
+                error = FileUtils.readStringFromFile("crash log", TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, Charset.defaultCharset(), reportStringBuilder, false);
+                if (error != null) {
+                    Logger.logErrorExtended(logTag, error.toString());
+                    return;
+                }
+
+                // Move crash log file to backup location if it exists
+                error = FileUtils.moveRegularFile("crash log", TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH, TermuxConstants.TERMUX_CRASH_LOG_BACKUP_FILE_PATH, true);
+                if (error != null) {
+                    Logger.logErrorExtended(logTag, error.toString());
+                }
+
+                String reportString = reportStringBuilder.toString();
+
+                if (reportString.isEmpty())
+                    return;
+
+                Logger.logDebug(logTag, "A crash log file found at \"" + TermuxConstants.TERMUX_CRASH_LOG_FILE_PATH +  "\".");
+
+                sendCrashReportNotification(context, logTag, reportString, false, false);
+            }
+        }.start();
+    }
+
+    /**
+     * Send a crash report notification for {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param logTag The log tag to use for logging.
+     * @param message The message for the crash report.
+     * @param forceNotification If set to {@code true}, then a notification will be shown
+     *                          regardless of if pending intent is {@code null} or
+     *                          {@link TermuxPreferenceConstants.TERMUX_APP#KEY_CRASH_REPORT_NOTIFICATIONS_ENABLED}
+     *                          is {@code false}.
+     * @param addAppAndDeviceInfo If set to {@code true}, then app and device info will be appended
+     *                            to the message.
+     */
+    public static void sendCrashReportNotification(final Context context, String logTag, String message, boolean forceNotification, boolean addAppAndDeviceInfo) {
+        if (context == null) return;
+
+        TermuxAppSharedPreferences preferences = TermuxAppSharedPreferences.build(context);
+        if (preferences == null) return;
+
+        // If user has disabled notifications for crashes
+        if (!preferences.areCrashReportNotificationsEnabled() && !forceNotification)
+            return;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+
+        // Send a notification to show the crash log which when clicked will open the {@link ReportActivity}
+        // to show the details of the crash
+        String title = TermuxConstants.TERMUX_APP_NAME + " Crash Report";
+
+        Logger.logDebug(logTag, "Sending \"" + title + "\" notification.");
+
+        StringBuilder reportString = new StringBuilder(message);
+
+        if (addAppAndDeviceInfo) {
+            reportString.append("\n\n").append(TermuxUtils.getAppInfoMarkdownString(context, true));
+            reportString.append("\n\n").append(AndroidUtils.getDeviceInfoMarkdownString(context));
+        }
+
+        String userActionName = UserAction.CRASH_REPORT.getName();
+        ReportActivity.NewInstanceResult result = ReportActivity.newInstance(context, new ReportInfo(userActionName,
+            logTag, title, null, reportString.toString(),
+            "\n\n" + TermuxUtils.getReportIssueMarkdownString(context), true,
+            userActionName,
+            Environment.getExternalStorageDirectory() + "/" +
+                FileUtils.sanitizeFileName(TermuxConstants.TERMUX_APP_NAME + "-" + userActionName + ".log", true, true)));
+        if (result.contentIntent == null) return;
+
+        // Must ensure result code for PendingIntents and id for notification are unique otherwise will override previous
+        int nextNotificationId = TermuxNotificationUtils.getNextNotificationId(context);
+
+        PendingIntent contentIntent = PendingIntent.getActivity(context, nextNotificationId, result.contentIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        PendingIntent deleteIntent = null;
+        if (result.deleteIntent != null)
+            deleteIntent = PendingIntent.getBroadcast(context, nextNotificationId, result.deleteIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        // Setup the notification channel if not already set up
+        setupCrashReportsNotificationChannel(context);
+
+        // Build the notification
+        Notification.Builder builder = getCrashReportsNotificationBuilder(context, title, null,
+            null, contentIntent, deleteIntent, NotificationUtils.NOTIFICATION_MODE_VIBRATE);
+        if (builder == null) return;
+
+        // Send the notification
+        NotificationManager notificationManager = NotificationUtils.getNotificationManager(context);
+        if (notificationManager != null)
+            notificationManager.notify(nextNotificationId, builder.build());
+    }
+
+    /**
+     * Get {@link Notification.Builder} for {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param title The title for the notification.
+     * @param notificationText The second line text of the notification.
+     * @param notificationBigText The full text of the notification that may optionally be styled.
+     * @param contentIntent The {@link PendingIntent} which should be sent when notification is clicked.
+     * @param deleteIntent The {@link PendingIntent} which should be sent when notification is deleted.
+     * @param notificationMode The notification mode. It must be one of {@code NotificationUtils.NOTIFICATION_MODE_*}.
+     * @return Returns the {@link Notification.Builder}.
+     */
+    @Nullable
+    public static Notification.Builder getCrashReportsNotificationBuilder(final Context context, final CharSequence title, final CharSequence notificationText, final CharSequence notificationBigText, final PendingIntent contentIntent, final PendingIntent deleteIntent, final int notificationMode) {
+
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(context,
+            TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_HIGH,
+            title, notificationText, notificationBigText, contentIntent, deleteIntent, notificationMode);
+
+        if (builder == null)  return null;
+
+        // Enable timestamp
+        builder.setShowWhen(true);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_error_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        // Dismiss on click
+        builder.setAutoCancel(true);
+
+        return builder;
+    }
+
+    /**
+     * Setup the notification channel for {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID} and
+     * {@link TermuxConstants#TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     */
+    public static void setupCrashReportsNotificationChannel(final Context context) {
+        NotificationUtils.setupNotificationChannel(context, TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_CRASH_REPORTS_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
+    }
+
+}

app/src/main/java/com/termux/app/utils/PluginUtils.java

@@ -0,0 +1,335 @@
+package com.termux.app.utils;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.os.Environment;
+
+import androidx.annotation.Nullable;
+
+import com.termux.R;
+import com.termux.shared.activities.ReportActivity;
+import com.termux.shared.file.FileUtils;
+import com.termux.shared.file.TermuxFileUtils;
+import com.termux.shared.models.ResultConfig;
+import com.termux.shared.models.ResultData;
+import com.termux.shared.models.errors.Errno;
+import com.termux.shared.models.errors.Error;
+import com.termux.shared.notification.NotificationUtils;
+import com.termux.shared.notification.TermuxNotificationUtils;
+import com.termux.shared.shell.ResultSender;
+import com.termux.shared.shell.ShellUtils;
+import com.termux.shared.termux.AndroidUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
+import com.termux.shared.logger.Logger;
+import com.termux.shared.settings.preferences.TermuxAppSharedPreferences;
+import com.termux.shared.settings.preferences.TermuxPreferenceConstants.TERMUX_APP;
+import com.termux.shared.settings.properties.SharedProperties;
+import com.termux.shared.settings.properties.TermuxPropertyConstants;
+import com.termux.shared.models.ReportInfo;
+import com.termux.shared.models.ExecutionCommand;
+import com.termux.app.models.UserAction;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.markdown.MarkdownUtils;
+import com.termux.shared.termux.TermuxUtils;
+
+public class PluginUtils {
+
+    private static final String LOG_TAG = "PluginUtils";
+
+    /**
+     * Process {@link ExecutionCommand} result.
+     *
+     * The ExecutionCommand currentState must be greater or equal to
+     * {@link ExecutionCommand.ExecutionState#EXECUTED}.
+     * If the {@link ExecutionCommand#isPluginExecutionCommand} is {@code true} and
+     * {@link ResultConfig#resultPendingIntent} or {@link ResultConfig#resultDirectoryPath}
+     * is not {@code null}, then the result of commands are sent back to the command caller.
+     *
+     * @param context The {@link Context} that will be used to send result intent to the {@link PendingIntent} creator.
+     * @param logTag The log tag to use for logging.
+     * @param executionCommand The {@link ExecutionCommand} to process.
+     */
+    public static void processPluginExecutionCommandResult(final Context context, String logTag, final ExecutionCommand executionCommand) {
+        if (executionCommand == null) return;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+        Error error = null;
+        ResultData resultData = executionCommand.resultData;
+
+        if (!executionCommand.hasExecuted()) {
+            Logger.logWarn(logTag, executionCommand.getCommandIdAndLabelLogString() + ": Ignoring call to processPluginExecutionCommandResult() since the execution command state is not higher than the ExecutionState.EXECUTED");
+            return;
+        }
+
+        boolean isPluginExecutionCommandWithPendingResult = executionCommand.isPluginExecutionCommandWithPendingResult();
+        boolean isExecutionCommandLoggingEnabled = Logger.shouldEnableLoggingForCustomLogLevel(executionCommand.backgroundCustomLogLevel);
+
+        // Log the output. ResultData should not be logged if pending result since ResultSender will do it
+        // or if logging is disabled
+        Logger.logDebugExtended(logTag, ExecutionCommand.getExecutionOutputLogString(executionCommand, true,
+            !isPluginExecutionCommandWithPendingResult, isExecutionCommandLoggingEnabled));
+
+        // If execution command was started by a plugin which expects the result back
+        if (isPluginExecutionCommandWithPendingResult) {
+            // Set variables which will be used by sendCommandResultData to send back the result
+            if (executionCommand.resultConfig.resultPendingIntent != null)
+                setPluginResultPendingIntentVariables(executionCommand);
+            if (executionCommand.resultConfig.resultDirectoryPath != null)
+                setPluginResultDirectoryVariables(executionCommand);
+
+            // Send result to caller
+            error = ResultSender.sendCommandResultData(context, logTag, executionCommand.getCommandIdAndLabelLogString(),
+                executionCommand.resultConfig, executionCommand.resultData, isExecutionCommandLoggingEnabled);
+            if (error != null) {
+                // error will be added to existing Errors
+                resultData.setStateFailed(error);
+                Logger.logDebugExtended(logTag, ExecutionCommand.getExecutionOutputLogString(executionCommand, true, true, isExecutionCommandLoggingEnabled));
+
+                // Flash and send notification for the error
+                Logger.showToast(context, ResultData.getErrorsListMinimalString(resultData), true);
+                sendPluginCommandErrorNotification(context, logTag, executionCommand, ResultData.getErrorsListMinimalString(resultData));
+            }
+
+        }
+
+        if (!executionCommand.isStateFailed() && error == null)
+            executionCommand.setState(ExecutionCommand.ExecutionState.SUCCESS);
+    }
+
+    /**
+     * Process {@link ExecutionCommand} error.
+     *
+     * The ExecutionCommand currentState must be equal to {@link ExecutionCommand.ExecutionState#FAILED}.
+     * The {@link ResultData#getErrCode()} must have been set to a value greater than
+     * {@link Errno#ERRNO_SUCCESS}.
+     * The {@link ResultData#errorsList} must also be set with appropriate error info.
+     *
+     * If the {@link ExecutionCommand#isPluginExecutionCommand} is {@code true} and
+     * {@link ResultConfig#resultPendingIntent} or {@link ResultConfig#resultDirectoryPath}
+     * is not {@code null}, then the errors of commands are sent back to the command caller.
+     *
+     * Otherwise if the {@link TERMUX_APP#KEY_PLUGIN_ERROR_NOTIFICATIONS_ENABLED} is
+     * enabled, then a flash and a notification will be shown for the error as well
+     * on the {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME} channel instead of just logging
+     * the error.
+     *
+     * @param context The {@link Context} for operations.
+     * @param logTag The log tag to use for logging.
+     * @param executionCommand The {@link ExecutionCommand} that failed.
+     * @param forceNotification If set to {@code true}, then a flash and notification will be shown
+     *                          regardless of if pending intent is {@code null} or
+     *                          {@link TERMUX_APP#KEY_PLUGIN_ERROR_NOTIFICATIONS_ENABLED}
+     *                          is {@code false}.
+     */
+    public static void processPluginExecutionCommandError(final Context context, String logTag, final ExecutionCommand executionCommand, boolean forceNotification) {
+        if (context == null || executionCommand == null) return;
+
+        logTag = DataUtils.getDefaultIfNull(logTag, LOG_TAG);
+        Error error;
+        ResultData resultData = executionCommand.resultData;
+
+        if (!executionCommand.isStateFailed()) {
+            Logger.logWarn(logTag, executionCommand.getCommandIdAndLabelLogString() + ": Ignoring call to processPluginExecutionCommandError() since the execution command is not in ExecutionState.FAILED");
+            return;
+        }
+
+        boolean isPluginExecutionCommandWithPendingResult = executionCommand.isPluginExecutionCommandWithPendingResult();
+        boolean isExecutionCommandLoggingEnabled = Logger.shouldEnableLoggingForCustomLogLevel(executionCommand.backgroundCustomLogLevel);
+
+        // Log the error and any exception. ResultData should not be logged if pending result since ResultSender will do it
+        Logger.logErrorExtended(logTag, ExecutionCommand.getExecutionOutputLogString(executionCommand, true,
+            !isPluginExecutionCommandWithPendingResult, isExecutionCommandLoggingEnabled));
+
+        // If execution command was started by a plugin which expects the result back
+        if (isPluginExecutionCommandWithPendingResult) {
+            // Set variables which will be used by sendCommandResultData to send back the result
+            if (executionCommand.resultConfig.resultPendingIntent != null)
+                setPluginResultPendingIntentVariables(executionCommand);
+            if (executionCommand.resultConfig.resultDirectoryPath != null)
+                setPluginResultDirectoryVariables(executionCommand);
+
+            // Send result to caller
+            error = ResultSender.sendCommandResultData(context, logTag, executionCommand.getCommandIdAndLabelLogString(),
+                executionCommand.resultConfig, executionCommand.resultData, isExecutionCommandLoggingEnabled);
+            if (error != null) {
+                // error will be added to existing Errors
+                resultData.setStateFailed(error);
+                Logger.logErrorExtended(logTag, ExecutionCommand.getExecutionOutputLogString(executionCommand, true, true, isExecutionCommandLoggingEnabled));
+                forceNotification = true;
+            }
+
+            // No need to show notifications if a pending intent was sent, let the caller handle the result himself
+            if (!forceNotification) return;
+        }
+
+        TermuxAppSharedPreferences preferences = TermuxAppSharedPreferences.build(context);
+        if (preferences == null) return;
+
+        // If user has disabled notifications for plugin commands, then just return
+        if (!preferences.arePluginErrorNotificationsEnabled() && !forceNotification)
+            return;
+
+        // Flash and send notification for the error
+        Logger.showToast(context, ResultData.getErrorsListMinimalString(resultData), true);
+        sendPluginCommandErrorNotification(context, logTag, executionCommand, ResultData.getErrorsListMinimalString(resultData));
+
+    }
+
+    /** Set variables which will be used by {@link ResultSender#sendCommandResultData(Context, String, String, ResultConfig, ResultData, boolean)}
+     * to send back the result via {@link ResultConfig#resultPendingIntent}. */
+    public static void setPluginResultPendingIntentVariables(ExecutionCommand executionCommand) {
+        ResultConfig resultConfig = executionCommand.resultConfig;
+
+        resultConfig.resultBundleKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE;
+        resultConfig.resultStdoutKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDOUT;
+        resultConfig.resultStdoutOriginalLengthKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDOUT_ORIGINAL_LENGTH;
+        resultConfig.resultStderrKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDERR;
+        resultConfig.resultStderrOriginalLengthKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_STDERR_ORIGINAL_LENGTH;
+        resultConfig.resultExitCodeKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_EXIT_CODE;
+        resultConfig.resultErrCodeKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_ERR;
+        resultConfig.resultErrmsgKey = TERMUX_SERVICE.EXTRA_PLUGIN_RESULT_BUNDLE_ERRMSG;
+    }
+
+    /** Set variables which will be used by {@link ResultSender#sendCommandResultData(Context, String, String, ResultConfig, ResultData, boolean)}
+     * to send back the result by writing it to files in {@link ResultConfig#resultDirectoryPath}. */
+    public static void setPluginResultDirectoryVariables(ExecutionCommand executionCommand) {
+        ResultConfig resultConfig = executionCommand.resultConfig;
+
+        resultConfig.resultDirectoryPath = TermuxFileUtils.getCanonicalPath(resultConfig.resultDirectoryPath, null, true);
+        resultConfig.resultDirectoryAllowedParentPath = TermuxFileUtils.getMatchedAllowedTermuxWorkingDirectoryParentPathForPath(resultConfig.resultDirectoryPath);
+
+        // Set default resultFileBasename if resultSingleFile is true to `<executable_basename>-<timestamp>.log`
+        if (resultConfig.resultSingleFile && resultConfig.resultFileBasename == null)
+            resultConfig.resultFileBasename = ShellUtils.getExecutableBasename(executionCommand.executable) + "-" + AndroidUtils.getCurrentMilliSecondLocalTimeStamp() + ".log";
+    }
+
+
+
+    /**
+     * Send an error notification for {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param executionCommand The {@link ExecutionCommand} that failed.
+     * @param notificationTextString The text of the notification.
+     */
+    public static void sendPluginCommandErrorNotification(Context context, String logTag, ExecutionCommand executionCommand, String notificationTextString) {
+        // Send a notification to show the error which when clicked will open the ReportActivity
+        // to show the details of the error
+        String title = TermuxConstants.TERMUX_APP_NAME + " Plugin Execution Command Error";
+
+        StringBuilder reportString = new StringBuilder();
+
+        reportString.append(ExecutionCommand.getExecutionCommandMarkdownString(executionCommand));
+        reportString.append("\n\n").append(TermuxUtils.getAppInfoMarkdownString(context, true));
+        reportString.append("\n\n").append(AndroidUtils.getDeviceInfoMarkdownString(context));
+
+        String userActionName = UserAction.PLUGIN_EXECUTION_COMMAND.getName();
+        ReportActivity.NewInstanceResult result = ReportActivity.newInstance(context,
+            new ReportInfo(userActionName, logTag, title, null,
+                reportString.toString(), null,true,
+                userActionName,
+                Environment.getExternalStorageDirectory() + "/" +
+                    FileUtils.sanitizeFileName(TermuxConstants.TERMUX_APP_NAME + "-" + userActionName + ".log", true, true)));
+        if (result.contentIntent == null) return;
+
+        // Must ensure result code for PendingIntents and id for notification are unique otherwise will override previous
+        int nextNotificationId = TermuxNotificationUtils.getNextNotificationId(context);
+
+        PendingIntent contentIntent = PendingIntent.getActivity(context, nextNotificationId, result.contentIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        PendingIntent deleteIntent = null;
+        if (result.deleteIntent != null)
+            deleteIntent = PendingIntent.getBroadcast(context, nextNotificationId, result.deleteIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+
+        // Setup the notification channel if not already set up
+        setupPluginCommandErrorsNotificationChannel(context);
+
+        // Use markdown in notification
+        CharSequence notificationTextCharSequence = MarkdownUtils.getSpannedMarkdownText(context, notificationTextString);
+        //CharSequence notificationTextCharSequence = notificationTextString;
+
+        // Build the notification
+        Notification.Builder builder = getPluginCommandErrorsNotificationBuilder(context, title,
+            notificationTextCharSequence, notificationTextCharSequence, contentIntent, deleteIntent, NotificationUtils.NOTIFICATION_MODE_VIBRATE);
+        if (builder == null) return;
+
+        // Send the notification
+        NotificationManager notificationManager = NotificationUtils.getNotificationManager(context);
+        if (notificationManager != null)
+            notificationManager.notify(nextNotificationId, builder.build());
+    }
+
+    /**
+     * Get {@link Notification.Builder} for {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID}
+     * and {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     * @param title The title for the notification.
+     * @param notificationText The second line text of the notification.
+     * @param notificationBigText The full text of the notification that may optionally be styled.
+     * @param contentIntent The {@link PendingIntent} which should be sent when notification is clicked.
+     * @param deleteIntent The {@link PendingIntent} which should be sent when notification is deleted.
+     * @param notificationMode The notification mode. It must be one of {@code NotificationUtils.NOTIFICATION_MODE_*}.
+     * @return Returns the {@link Notification.Builder}.
+     */
+    @Nullable
+    public static Notification.Builder getPluginCommandErrorsNotificationBuilder(
+        final Context context, final CharSequence title, final CharSequence notificationText,
+        final CharSequence notificationBigText, final PendingIntent contentIntent, final PendingIntent deleteIntent, final int notificationMode) {
+
+        Notification.Builder builder =  NotificationUtils.geNotificationBuilder(context,
+            TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID, Notification.PRIORITY_HIGH,
+            title, notificationText, notificationBigText, contentIntent, deleteIntent, notificationMode);
+
+        if (builder == null)  return null;
+
+        // Enable timestamp
+        builder.setShowWhen(true);
+
+        // Set notification icon
+        builder.setSmallIcon(R.drawable.ic_error_notification);
+
+        // Set background color for small notification icon
+        builder.setColor(0xFF607D8B);
+
+        // Dismiss on click
+        builder.setAutoCancel(true);
+
+        return builder;
+    }
+
+    /**
+     * Setup the notification channel for {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID} and
+     * {@link TermuxConstants#TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME}.
+     *
+     * @param context The {@link Context} for operations.
+     */
+    public static void setupPluginCommandErrorsNotificationChannel(final Context context) {
+        NotificationUtils.setupNotificationChannel(context, TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_ID,
+            TermuxConstants.TERMUX_PLUGIN_COMMAND_ERRORS_NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
+    }
+
+
+
+    /**
+     * Check if {@link TermuxConstants#PROP_ALLOW_EXTERNAL_APPS} property is not set to "true".
+     *
+     * @param context The {@link Context} to get error string.
+     * @return Returns the {@code error} if policy is violated, otherwise {@code null}.
+     */
+    public static String checkIfAllowExternalAppsPolicyIsViolated(final Context context, String apiName) {
+        String errmsg = null;
+        if (!SharedProperties.isPropertyValueTrue(context, TermuxPropertyConstants.getTermuxPropertiesFile(),
+            TermuxConstants.PROP_ALLOW_EXTERNAL_APPS, true)) {
+            errmsg = context.getString(R.string.error_allow_external_apps_ungranted, apiName,
+                TermuxFileUtils.getUnExpandedTermuxPath(TermuxConstants.TERMUX_PROPERTIES_PRIMARY_FILE_PATH));
+        }
+
+        return errmsg;
+    }
+
+}

app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java

@@ -12,7 +12,7 @@ import android.provider.DocumentsProvider;
 import android.webkit.MimeTypeMap;
 
 import com.termux.R;
-import com.termux.app.TermuxService;
+import com.termux.shared.termux.TermuxConstants;
 
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -22,7 +22,7 @@ import java.util.LinkedList;
 
 /**
  * A document provider for the Storage Access Framework which exposes the files in the
- * $HOME/ folder to other apps.
+ * $HOME/ directory to other apps.
  * <p/>
  * Note that this replaces providing an activity matching the ACTION_GET_CONTENT intent:
  * <p/>
@@ -35,7 +35,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
 
     private static final String ALL_MIME_TYPES = "*/*";
 
-    private static final File BASE_DIR = new File(TermuxService.HOME_PATH);
+    private static final File BASE_DIR = TermuxConstants.TERMUX_HOME_DIR;
 
 
     // The default columns to return information about a root if no specific
@@ -63,19 +63,19 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
     };
 
     @Override
-    public Cursor queryRoots(String[] projection) throws FileNotFoundException {
+    public Cursor queryRoots(String[] projection) {
         final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_ROOT_PROJECTION);
-        @SuppressWarnings("ConstantConditions") final String applicationName = getContext().getString(R.string.application_name);
+        final String applicationName = getContext().getString(R.string.application_name);
 
         final MatrixCursor.RowBuilder row = result.newRow();
         row.add(Root.COLUMN_ROOT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_DOCUMENT_ID, getDocIdForFile(BASE_DIR));
         row.add(Root.COLUMN_SUMMARY, null);
-        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH);
+        row.add(Root.COLUMN_FLAGS, Root.FLAG_SUPPORTS_CREATE | Root.FLAG_SUPPORTS_SEARCH | Root.FLAG_SUPPORTS_IS_CHILD);
         row.add(Root.COLUMN_TITLE, applicationName);
         row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
         row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
-        row.add(Root.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher);
         return result;
     }
 
@@ -91,9 +91,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
         final File parent = getFileForDocId(parentDocumentId);
         for (File file : parent.listFiles()) {
-            if (!file.getName().startsWith(".")) {
-                includeFile(result, null, file);
-            }
+            includeFile(result, null, file);
         }
         return result;
     }
@@ -117,6 +115,29 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         return true;
     }
 
+    @Override
+    public String createDocument(String parentDocumentId, String mimeType, String displayName) throws FileNotFoundException {
+        File newFile = new File(parentDocumentId, displayName);
+        int noConflictId = 2;
+        while (newFile.exists()) {
+            newFile = new File(parentDocumentId, displayName + " (" + noConflictId++ + ")");
+        }
+        try {
+            boolean succeeded;
+            if (Document.MIME_TYPE_DIR.equals(mimeType)) {
+                succeeded = newFile.mkdir();
+            } else {
+                succeeded = newFile.createNewFile();
+            }
+            if (!succeeded) {
+                throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+            }
+        } catch (IOException e) {
+            throw new FileNotFoundException("Failed to create document with id " + newFile.getPath());
+        }
+        return newFile.getPath();
+    }
+
     @Override
     public void deleteDocument(String documentId) throws FileNotFoundException {
         File file = getFileForDocId(documentId);
@@ -146,16 +167,15 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         final int MAX_SEARCH_RESULTS = 50;
         while (!pending.isEmpty() && result.getCount() < MAX_SEARCH_RESULTS) {
             final File file = pending.removeFirst();
-            // Avoid folders outside the $HOME folders linked in to symlinks (to avoid e.g. search
+            // Avoid directories outside the $HOME directory linked with symlinks (to avoid e.g. search
             // through the whole SD card).
             boolean isInsideHome;
             try {
-                isInsideHome = file.getCanonicalPath().startsWith(TermuxService.HOME_PATH);
+                isInsideHome = file.getCanonicalPath().startsWith(TermuxConstants.TERMUX_HOME_DIR_PATH);
             } catch (IOException e) {
                 isInsideHome = true;
             }
-            final boolean isHidden = file.getName().startsWith(".");
-            if (isInsideHome && !isHidden) {
+            if (isInsideHome) {
                 if (file.isDirectory()) {
                     Collections.addAll(pending, file.listFiles());
                 } else {
@@ -169,6 +189,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         return result;
     }
 
+    @Override
+    public boolean isChildDocument(String parentDocumentId, String documentId) {
+        return documentId.startsWith(parentDocumentId);
+    }
+
     /**
      * Get the document id given a file. This document id must be consistent across time as other
      * applications may save the ID and use it to reference documents later.
@@ -195,7 +220,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
             final String name = file.getName();
             final int lastDot = name.lastIndexOf('.');
             if (lastDot >= 0) {
-                final String extension = name.substring(lastDot + 1);
+                final String extension = name.substring(lastDot + 1).toLowerCase();
                 final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
                 if (mime != null) return mime;
             }
@@ -220,10 +245,11 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
 
         int flags = 0;
         if (file.isDirectory()) {
-            if (file.isDirectory() && file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
+            if (file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
         } else if (file.canWrite()) {
-            flags |= Document.FLAG_SUPPORTS_WRITE | Document.FLAG_SUPPORTS_DELETE;
+            flags |= Document.FLAG_SUPPORTS_WRITE;
         }
+        if (file.getParentFile().canWrite()) flags |= Document.FLAG_SUPPORTS_DELETE;
 
         final String displayName = file.getName();
         final String mimeType = getMimeType(file);
@@ -236,7 +262,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Document.COLUMN_MIME_TYPE, mimeType);
         row.add(Document.COLUMN_LAST_MODIFIED, file.lastModified());
         row.add(Document.COLUMN_FLAGS, flags);
-        row.add(Document.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Document.COLUMN_ICON, R.mipmap.ic_launcher);
     }
 
 }

app/src/main/java/com/termux/filepicker/TermuxFileReceiverActivity.java

@@ -1,18 +1,21 @@
 package com.termux.filepicker;
 
 import android.app.Activity;
-import android.app.AlertDialog;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
 import android.provider.OpenableColumns;
-import android.util.Log;
 import android.util.Patterns;
 
 import com.termux.R;
-import com.termux.app.DialogUtils;
+import com.termux.shared.data.DataUtils;
+import com.termux.shared.data.IntentUtils;
+import com.termux.shared.interact.MessageDialogUtils;
+import com.termux.shared.interact.TextInputDialogUtils;
+import com.termux.shared.termux.TermuxConstants;
+import com.termux.shared.termux.TermuxConstants.TERMUX_APP.TERMUX_SERVICE;
 import com.termux.app.TermuxService;
+import com.termux.shared.logger.Logger;
 
 import java.io.ByteArrayInputStream;
 import java.io.File;
@@ -22,12 +25,13 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
 
 public class TermuxFileReceiverActivity extends Activity {
 
-    static final String TERMUX_RECEIVEDIR = TermuxService.FILES_PATH + "/home/downloads";
-    static final String EDITOR_PROGRAM = TermuxService.HOME_PATH + "/bin/termux-file-editor";
-    static final String URL_OPENER_PROGRAM = TermuxService.HOME_PATH + "/bin/termux-url-opener";
+    static final String TERMUX_RECEIVEDIR = TermuxConstants.TERMUX_FILES_DIR_PATH + "/home/downloads";
+    static final String EDITOR_PROGRAM = TermuxConstants.TERMUX_HOME_DIR_PATH + "/bin/termux-file-editor";
+    static final String URL_OPENER_PROGRAM = TermuxConstants.TERMUX_HOME_DIR_PATH + "/bin/termux-url-opener";
 
     /**
      * If the activity should be finished when the name input dialog is dismissed. This is disabled
@@ -37,6 +41,15 @@ public class TermuxFileReceiverActivity extends Activity {
      */
     boolean mFinishOnDismissNameDialog = true;
 
+    private static final String API_TAG = TermuxConstants.TERMUX_APP_NAME + "FileReceiver";
+
+    private static final String LOG_TAG = "TermuxFileReceiverActivity";
+
+    static boolean isSharedTextAnUrl(String sharedText) {
+        return Patterns.WEB_URL.matcher(sharedText).matches()
+            || Pattern.matches("magnet:\\?xt=urn:btih:.*?", sharedText);
+    }
+
     @Override
     protected void onResume() {
         super.onResume();
@@ -46,54 +59,66 @@ public class TermuxFileReceiverActivity extends Activity {
         final String type = intent.getType();
         final String scheme = intent.getScheme();
 
+        Logger.logVerbose(LOG_TAG, "Intent Received:\n" + IntentUtils.getIntentString(intent));
+
+        final String sharedTitle = IntentUtils.getStringExtraIfSet(intent, Intent.EXTRA_TITLE, null);
+
         if (Intent.ACTION_SEND.equals(action) && type != null) {
             final String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
             final Uri sharedUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
 
-            if (sharedText != null) {
-                if (Patterns.WEB_URL.matcher(sharedText).matches()) {
+            if (sharedUri != null) {
+                handleContentUri(sharedUri, sharedTitle);
+            } else if (sharedText != null) {
+                if (isSharedTextAnUrl(sharedText)) {
                     handleUrlAndFinish(sharedText);
                 } else {
-                    String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
-                    if (subject == null) subject = intent.getStringExtra(Intent.EXTRA_TITLE);
+                    String subject = IntentUtils.getStringExtraIfSet(intent, Intent.EXTRA_SUBJECT, null);
+                    if (subject == null) subject = sharedTitle;
                     if (subject != null) subject += ".txt";
                     promptNameAndSave(new ByteArrayInputStream(sharedText.getBytes(StandardCharsets.UTF_8)), subject);
                 }
-            } else if (sharedUri != null) {
-                handleContentUri(sharedUri, intent.getStringExtra(Intent.EXTRA_TITLE));
             } else {
                 showErrorDialogAndQuit("Send action without content - nothing to save.");
             }
-        } else if ("content".equals(scheme)) {
-            handleContentUri(intent.getData(), intent.getStringExtra(Intent.EXTRA_TITLE));
-        } else if ("file".equals(scheme)) {
-            // When e.g. clicking on a downloaded apk:
-            String path = intent.getData().getPath();
-            File file = new File(path);
-            try {
-                FileInputStream in = new FileInputStream(file);
-                promptNameAndSave(in, file.getName());
-            } catch (FileNotFoundException e) {
-                showErrorDialogAndQuit("Cannot open file: " + e.getMessage() + ".");
-            }
         } else {
-            showErrorDialogAndQuit("Unable to receive any file or URL.");
+            Uri dataUri = intent.getData();
+
+            if (dataUri == null) {
+                showErrorDialogAndQuit("Data uri not passed.");
+                return;
+            }
+
+            if ("content".equals(scheme)) {
+                handleContentUri(dataUri, sharedTitle);
+            } else if ("file".equals(scheme)) {
+                // When e.g. clicking on a downloaded apk:
+                String path = dataUri.getPath();
+                if (DataUtils.isNullOrEmpty(path)) {
+                    showErrorDialogAndQuit("File path from data uri is null, empty or invalid.");
+                    return;
+                }
+
+                File file = new File(path);
+                try {
+                    FileInputStream in = new FileInputStream(file);
+                    promptNameAndSave(in, file.getName());
+                } catch (FileNotFoundException e) {
+                    showErrorDialogAndQuit("Cannot open file: " + e.getMessage() + ".");
+                }
+            } else {
+                showErrorDialogAndQuit("Unable to receive any file or URL.");
+            }
         }
     }
 
     void showErrorDialogAndQuit(String message) {
         mFinishOnDismissNameDialog = false;
-        new AlertDialog.Builder(this).setMessage(message).setOnDismissListener(new DialogInterface.OnDismissListener() {
-            @Override
-            public void onDismiss(DialogInterface dialog) {
-                finish();
-            }
-        }).setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-            @Override
-            public void onClick(DialogInterface dialog, int which) {
-                finish();
-            }
-        }).show();
+        MessageDialogUtils.showMessage(this,
+            API_TAG, message,
+            null, (dialog, which) -> finish(),
+            null, null,
+            dialog -> finish());
     }
 
     void handleContentUri(final Uri uri, String subjectFromIntent) {
@@ -114,68 +139,61 @@ public class TermuxFileReceiverActivity extends Activity {
             promptNameAndSave(in, attachmentFileName);
         } catch (Exception e) {
             showErrorDialogAndQuit("Unable to handle shared content:\n\n" + e.getMessage());
-            Log.e("termux", "handleContentUri(uri=" + uri + ") failed", e);
+            Logger.logStackTraceWithMessage(LOG_TAG, "handleContentUri(uri=" + uri + ") failed", e);
         }
     }
 
     void promptNameAndSave(final InputStream in, final String attachmentFileName) {
-        DialogUtils.textInput(this, R.string.file_received_title, attachmentFileName, R.string.file_received_edit_button, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(String text) {
-                    File outFile = saveStreamWithName(in, text);
-                    if (outFile == null) return;
+        TextInputDialogUtils.textInput(this, R.string.title_file_received, attachmentFileName, R.string.action_file_received_edit, text -> {
+            File outFile = saveStreamWithName(in, text);
+            if (outFile == null) return;
 
-                    final File editorProgramFile = new File(EDITOR_PROGRAM);
-                    if (!editorProgramFile.isFile()) {
-                        showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
-                            + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
-                        return;
-                    }
+            final File editorProgramFile = new File(EDITOR_PROGRAM);
+            if (!editorProgramFile.isFile()) {
+                showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-file-editor\n\n"
+                    + "Create this file as a script or a symlink - it will be called with the received file as only argument.");
+                return;
+            }
 
-                    // Do this for the user if necessary:
-                    //noinspection ResultOfMethodCallIgnored
-                    editorProgramFile.setExecutable(true);
+            // Do this for the user if necessary:
+            //noinspection ResultOfMethodCallIgnored
+            editorProgramFile.setExecutable(true);
 
-                    final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
+            final Uri scriptUri = new Uri.Builder().scheme("file").path(EDITOR_PROGRAM).build();
 
-                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, scriptUri);
-                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-                    executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
-                    startService(executeIntent);
-                    finish();
-                }
+            Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, scriptUri);
+            executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+            executeIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, new String[]{outFile.getAbsolutePath()});
+            startService(executeIntent);
+            finish();
+        },
+            R.string.action_file_received_open_directory, text -> {
+                if (saveStreamWithName(in, text) == null) return;
+
+                Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE);
+                executeIntent.putExtra(TERMUX_SERVICE.EXTRA_WORKDIR, TERMUX_RECEIVEDIR);
+                executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+                startService(executeIntent);
+                finish();
             },
-            R.string.file_received_open_folder_button, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(String text) {
-                    if (saveStreamWithName(in, text) == null) return;
-
-                    Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE);
-                    executeIntent.putExtra(TermuxService.EXTRA_CURRENT_WORKING_DIRECTORY, TERMUX_RECEIVEDIR);
-                    executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-                    startService(executeIntent);
-                    finish();
-                }
-            },
-            android.R.string.cancel, new DialogUtils.TextSetListener() {
-                @Override
-                public void onTextSet(final String text) {
-                    finish();
-                }
-            }, new DialogInterface.OnDismissListener() {
-                @Override
-                public void onDismiss(DialogInterface dialog) {
-                    if (mFinishOnDismissNameDialog) finish();
-                }
+            android.R.string.cancel, text -> finish(), dialog -> {
+                if (mFinishOnDismissNameDialog) finish();
             });
     }
 
     public File saveStreamWithName(InputStream in, String attachmentFileName) {
         File receiveDir = new File(TERMUX_RECEIVEDIR);
+
+        if (DataUtils.isNullOrEmpty(attachmentFileName)) {
+            showErrorDialogAndQuit("File name cannot be null or empty");
+            return null;
+        }
+
         if (!receiveDir.isDirectory() && !receiveDir.mkdirs()) {
             showErrorDialogAndQuit("Cannot create directory: " + receiveDir.getAbsolutePath());
             return null;
         }
+
         try {
             final File outFile = new File(receiveDir, attachmentFileName);
             try (FileOutputStream f = new FileOutputStream(outFile)) {
@@ -188,7 +206,7 @@ public class TermuxFileReceiverActivity extends Activity {
             return outFile;
         } catch (IOException e) {
             showErrorDialogAndQuit("Error saving file:\n\n" + e);
-            Log.e("termux", "Error saving file", e);
+            Logger.logStackTraceWithMessage(LOG_TAG, "Error saving file", e);
             return null;
         }
     }
@@ -197,7 +215,7 @@ public class TermuxFileReceiverActivity extends Activity {
         final File urlOpenerProgramFile = new File(URL_OPENER_PROGRAM);
         if (!urlOpenerProgramFile.isFile()) {
             showErrorDialogAndQuit("The following file does not exist:\n$HOME/bin/termux-url-opener\n\n"
-                + "Create this file as a script or a symlink - it will be called with the shared URL as only argument.");
+                + "Create this file as a script or a symlink - it will be called with the shared URL as the first argument.");
             return;
         }
 
@@ -207,9 +225,9 @@ public class TermuxFileReceiverActivity extends Activity {
 
         final Uri urlOpenerProgramUri = new Uri.Builder().scheme("file").path(URL_OPENER_PROGRAM).build();
 
-        Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, urlOpenerProgramUri);
+        Intent executeIntent = new Intent(TERMUX_SERVICE.ACTION_SERVICE_EXECUTE, urlOpenerProgramUri);
         executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
-        executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{url});
+        executeIntent.putExtra(TERMUX_SERVICE.EXTRA_ARGUMENTS, new String[]{url});
         startService(executeIntent);
         finish();
     }

app/src/main/java/com/termux/terminal/EmulatorDebug.java

@@ -1,10 +0,0 @@
-package com.termux.terminal;
-
-import android.util.Log;
-
-public final class EmulatorDebug {
-
-    /** The tag to use with {@link Log}. */
-    public static final String LOG_TAG = "termux";
-
-}

app/src/main/java/com/termux/terminal/TextStyle.java

@@ -1,55 +0,0 @@
-package com.termux.terminal;
-
-/**
- * Encodes effects, foreground and background colors into a 32 bit integer, which are stored for each cell in a terminal
- * row in {@link TerminalRow#mStyle}.
- * <p/>
- * The foreground and background colors take 9 bits each, leaving (32-9-9)=14 bits for effect flags. Using 9 for now
- * (the different CHARACTER_ATTRIBUTE_* bits).
- */
-public final class TextStyle {
-
-    public final static int CHARACTER_ATTRIBUTE_BOLD = 1;
-    public final static int CHARACTER_ATTRIBUTE_ITALIC = 1 << 1;
-    public final static int CHARACTER_ATTRIBUTE_UNDERLINE = 1 << 2;
-    public final static int CHARACTER_ATTRIBUTE_BLINK = 1 << 3;
-    public final static int CHARACTER_ATTRIBUTE_INVERSE = 1 << 4;
-    public final static int CHARACTER_ATTRIBUTE_INVISIBLE = 1 << 5;
-    public final static int CHARACTER_ATTRIBUTE_STRIKETHROUGH = 1 << 6;
-    /**
-     * The selective erase control functions (DECSED and DECSEL) can only erase characters defined as erasable.
-     * <p/>
-     * This bit is set if DECSCA (Select Character Protection Attribute) has been used to define the characters that
-     * come after it as erasable from the screen.
-     */
-    public final static int CHARACTER_ATTRIBUTE_PROTECTED = 1 << 7;
-    /** Dim colors. Also known as faint or half intensity. */
-    public final static int CHARACTER_ATTRIBUTE_DIM = 1 << 8;
-
-    public final static int COLOR_INDEX_FOREGROUND = 256;
-    public final static int COLOR_INDEX_BACKGROUND = 257;
-    public final static int COLOR_INDEX_CURSOR = 258;
-
-    /** The 256 standard color entries and the three special (foreground, background and cursor) ones. */
-    public final static int NUM_INDEXED_COLORS = 259;
-
-    /** Normal foreground and background colors and no effects. */
-    final static int NORMAL = encode(COLOR_INDEX_FOREGROUND, COLOR_INDEX_BACKGROUND, 0);
-
-    static int encode(int foreColor, int backColor, int effect) {
-        return ((effect & 0b111111111) << 18) | ((foreColor & 0b111111111) << 9) | (backColor & 0b111111111);
-    }
-
-    public static int decodeForeColor(int encodedColor) {
-        return (encodedColor >> 9) & 0b111111111;
-    }
-
-    public static int decodeBackColor(int encodedColor) {
-        return encodedColor & 0b111111111;
-    }
-
-    public static int decodeEffect(int encodedColor) {
-        return (encodedColor >> 18) & 0b111111111;
-    }
-
-}

app/src/main/java/com/termux/terminal/WcWidth.java

@@ -1,458 +0,0 @@
-package com.termux.terminal;
-
-/**
- * Implementation of wcwidth(3) for Unicode 9.
- *
- * Implementation from https://github.com/jquast/wcwidth but we return 0 for unprintable characters.
- */
-public final class WcWidth {
-
-    // From https://github.com/jquast/wcwidth/blob/master/wcwidth/table_zero.py
-    // t commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
-    private static final int[][] ZERO_WIDTH = {
-        {0x0300, 0x036f},  // Combining Grave Accent  ..Combining Latin Small Le
-        {0x0483, 0x0489},  // Combining Cyrillic Titlo..Combining Cyrillic Milli
-        {0x0591, 0x05bd},  // Hebrew Accent Etnahta   ..Hebrew Point Meteg
-        {0x05bf, 0x05bf},  // Hebrew Point Rafe       ..Hebrew Point Rafe
-        {0x05c1, 0x05c2},  // Hebrew Point Shin Dot   ..Hebrew Point Sin Dot
-        {0x05c4, 0x05c5},  // Hebrew Mark Upper Dot   ..Hebrew Mark Lower Dot
-        {0x05c7, 0x05c7},  // Hebrew Point Qamats Qata..Hebrew Point Qamats Qata
-        {0x0610, 0x061a},  // Arabic Sign Sallallahou ..Arabic Small Kasra
-        {0x064b, 0x065f},  // Arabic Fathatan         ..Arabic Wavy Hamza Below
-        {0x0670, 0x0670},  // Arabic Letter Superscrip..Arabic Letter Superscrip
-        {0x06d6, 0x06dc},  // Arabic Small High Ligatu..Arabic Small High Seen
-        {0x06df, 0x06e4},  // Arabic Small High Rounde..Arabic Small High Madda
-        {0x06e7, 0x06e8},  // Arabic Small High Yeh   ..Arabic Small High Noon
-        {0x06ea, 0x06ed},  // Arabic Empty Centre Low ..Arabic Small Low Meem
-        {0x0711, 0x0711},  // Syriac Letter Superscrip..Syriac Letter Superscrip
-        {0x0730, 0x074a},  // Syriac Pthaha Above     ..Syriac Barrekh
-        {0x07a6, 0x07b0},  // Thaana Abafili          ..Thaana Sukun
-        {0x07eb, 0x07f3},  // Nko Combining Sh||t High..Nko Combining Double Dot
-        {0x0816, 0x0819},  // Samaritan Mark In       ..Samaritan Mark Dagesh
-        {0x081b, 0x0823},  // Samaritan Mark Epentheti..Samaritan Vowel Sign A
-        {0x0825, 0x0827},  // Samaritan Vowel Sign Sho..Samaritan Vowel Sign U
-        {0x0829, 0x082d},  // Samaritan Vowel Sign Lon..Samaritan Mark Nequdaa
-        {0x0859, 0x085b},  // Mandaic Affrication Mark..Mandaic Gemination Mark
-        {0x08d4, 0x08e1},  // (nil)                   ..
-        {0x08e3, 0x0902},  // Arabic Turned Damma Belo..Devanagari Sign Anusvara
-        {0x093a, 0x093a},  // Devanagari Vowel Sign Oe..Devanagari Vowel Sign Oe
-        {0x093c, 0x093c},  // Devanagari Sign Nukta   ..Devanagari Sign Nukta
-        {0x0941, 0x0948},  // Devanagari Vowel Sign U ..Devanagari Vowel Sign Ai
-        {0x094d, 0x094d},  // Devanagari Sign Virama  ..Devanagari Sign Virama
-        {0x0951, 0x0957},  // Devanagari Stress Sign U..Devanagari Vowel Sign Uu
-        {0x0962, 0x0963},  // Devanagari Vowel Sign Vo..Devanagari Vowel Sign Vo
-        {0x0981, 0x0981},  // Bengali Sign Candrabindu..Bengali Sign Candrabindu
-        {0x09bc, 0x09bc},  // Bengali Sign Nukta      ..Bengali Sign Nukta
-        {0x09c1, 0x09c4},  // Bengali Vowel Sign U    ..Bengali Vowel Sign Vocal
-        {0x09cd, 0x09cd},  // Bengali Sign Virama     ..Bengali Sign Virama
-        {0x09e2, 0x09e3},  // Bengali Vowel Sign Vocal..Bengali Vowel Sign Vocal
-        {0x0a01, 0x0a02},  // Gurmukhi Sign Adak Bindi..Gurmukhi Sign Bindi
-        {0x0a3c, 0x0a3c},  // Gurmukhi Sign Nukta     ..Gurmukhi Sign Nukta
-        {0x0a41, 0x0a42},  // Gurmukhi Vowel Sign U   ..Gurmukhi Vowel Sign Uu
-        {0x0a47, 0x0a48},  // Gurmukhi Vowel Sign Ee  ..Gurmukhi Vowel Sign Ai
-        {0x0a4b, 0x0a4d},  // Gurmukhi Vowel Sign Oo  ..Gurmukhi Sign Virama
-        {0x0a51, 0x0a51},  // Gurmukhi Sign Udaat     ..Gurmukhi Sign Udaat
-        {0x0a70, 0x0a71},  // Gurmukhi Tippi          ..Gurmukhi Addak
-        {0x0a75, 0x0a75},  // Gurmukhi Sign Yakash    ..Gurmukhi Sign Yakash
-        {0x0a81, 0x0a82},  // Gujarati Sign Candrabind..Gujarati Sign Anusvara
-        {0x0abc, 0x0abc},  // Gujarati Sign Nukta     ..Gujarati Sign Nukta
-        {0x0ac1, 0x0ac5},  // Gujarati Vowel Sign U   ..Gujarati Vowel Sign Cand
-        {0x0ac7, 0x0ac8},  // Gujarati Vowel Sign E   ..Gujarati Vowel Sign Ai
-        {0x0acd, 0x0acd},  // Gujarati Sign Virama    ..Gujarati Sign Virama
-        {0x0ae2, 0x0ae3},  // Gujarati Vowel Sign Voca..Gujarati Vowel Sign Voca
-        {0x0b01, 0x0b01},  // ||iya Sign Candrabindu  ..||iya Sign Candrabindu
-        {0x0b3c, 0x0b3c},  // ||iya Sign Nukta        ..||iya Sign Nukta
-        {0x0b3f, 0x0b3f},  // ||iya Vowel Sign I      ..||iya Vowel Sign I
-        {0x0b41, 0x0b44},  // ||iya Vowel Sign U      ..||iya Vowel Sign Vocalic
-        {0x0b4d, 0x0b4d},  // ||iya Sign Virama       ..||iya Sign Virama
-        {0x0b56, 0x0b56},  // ||iya Ai Length Mark    ..||iya Ai Length Mark
-        {0x0b62, 0x0b63},  // ||iya Vowel Sign Vocalic..||iya Vowel Sign Vocalic
-        {0x0b82, 0x0b82},  // Tamil Sign Anusvara     ..Tamil Sign Anusvara
-        {0x0bc0, 0x0bc0},  // Tamil Vowel Sign Ii     ..Tamil Vowel Sign Ii
-        {0x0bcd, 0x0bcd},  // Tamil Sign Virama       ..Tamil Sign Virama
-        {0x0c00, 0x0c00},  // Telugu Sign Combining Ca..Telugu Sign Combining Ca
-        {0x0c3e, 0x0c40},  // Telugu Vowel Sign Aa    ..Telugu Vowel Sign Ii
-        {0x0c46, 0x0c48},  // Telugu Vowel Sign E     ..Telugu Vowel Sign Ai
-        {0x0c4a, 0x0c4d},  // Telugu Vowel Sign O     ..Telugu Sign Virama
-        {0x0c55, 0x0c56},  // Telugu Length Mark      ..Telugu Ai Length Mark
-        {0x0c62, 0x0c63},  // Telugu Vowel Sign Vocali..Telugu Vowel Sign Vocali
-        {0x0c81, 0x0c81},  // Kannada Sign Candrabindu..Kannada Sign Candrabindu
-        {0x0cbc, 0x0cbc},  // Kannada Sign Nukta      ..Kannada Sign Nukta
-        {0x0cbf, 0x0cbf},  // Kannada Vowel Sign I    ..Kannada Vowel Sign I
-        {0x0cc6, 0x0cc6},  // Kannada Vowel Sign E    ..Kannada Vowel Sign E
-        {0x0ccc, 0x0ccd},  // Kannada Vowel Sign Au   ..Kannada Sign Virama
-        {0x0ce2, 0x0ce3},  // Kannada Vowel Sign Vocal..Kannada Vowel Sign Vocal
-        {0x0d01, 0x0d01},  // Malayalam Sign Candrabin..Malayalam Sign Candrabin
-        {0x0d41, 0x0d44},  // Malayalam Vowel Sign U  ..Malayalam Vowel Sign Voc
-        {0x0d4d, 0x0d4d},  // Malayalam Sign Virama   ..Malayalam Sign Virama
-        {0x0d62, 0x0d63},  // Malayalam Vowel Sign Voc..Malayalam Vowel Sign Voc
-        {0x0dca, 0x0dca},  // Sinhala Sign Al-lakuna  ..Sinhala Sign Al-lakuna
-        {0x0dd2, 0x0dd4},  // Sinhala Vowel Sign Ketti..Sinhala Vowel Sign Ketti
-        {0x0dd6, 0x0dd6},  // Sinhala Vowel Sign Diga ..Sinhala Vowel Sign Diga
-        {0x0e31, 0x0e31},  // Thai Character Mai Han-a..Thai Character Mai Han-a
-        {0x0e34, 0x0e3a},  // Thai Character Sara I   ..Thai Character Phinthu
-        {0x0e47, 0x0e4e},  // Thai Character Maitaikhu..Thai Character Yamakkan
-        {0x0eb1, 0x0eb1},  // Lao Vowel Sign Mai Kan  ..Lao Vowel Sign Mai Kan
-        {0x0eb4, 0x0eb9},  // Lao Vowel Sign I        ..Lao Vowel Sign Uu
-        {0x0ebb, 0x0ebc},  // Lao Vowel Sign Mai Kon  ..Lao Semivowel Sign Lo
-        {0x0ec8, 0x0ecd},  // Lao Tone Mai Ek         ..Lao Niggahita
-        {0x0f18, 0x0f19},  // Tibetan Astrological Sig..Tibetan Astrological Sig
-        {0x0f35, 0x0f35},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
-        {0x0f37, 0x0f37},  // Tibetan Mark Ngas Bzung ..Tibetan Mark Ngas Bzung
-        {0x0f39, 0x0f39},  // Tibetan Mark Tsa -phru  ..Tibetan Mark Tsa -phru
-        {0x0f71, 0x0f7e},  // Tibetan Vowel Sign Aa   ..Tibetan Sign Rjes Su Nga
-        {0x0f80, 0x0f84},  // Tibetan Vowel Sign Rever..Tibetan Mark Halanta
-        {0x0f86, 0x0f87},  // Tibetan Sign Lci Rtags  ..Tibetan Sign Yang Rtags
-        {0x0f8d, 0x0f97},  // Tibetan Subjoined Sign L..Tibetan Subjoined Letter
-        {0x0f99, 0x0fbc},  // Tibetan Subjoined Letter..Tibetan Subjoined Letter
-        {0x0fc6, 0x0fc6},  // Tibetan Symbol Padma Gda..Tibetan Symbol Padma Gda
-        {0x102d, 0x1030},  // Myanmar Vowel Sign I    ..Myanmar Vowel Sign Uu
-        {0x1032, 0x1037},  // Myanmar Vowel Sign Ai   ..Myanmar Sign Dot Below
-        {0x1039, 0x103a},  // Myanmar Sign Virama     ..Myanmar Sign Asat
-        {0x103d, 0x103e},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
-        {0x1058, 0x1059},  // Myanmar Vowel Sign Vocal..Myanmar Vowel Sign Vocal
-        {0x105e, 0x1060},  // Myanmar Consonant Sign M..Myanmar Consonant Sign M
-        {0x1071, 0x1074},  // Myanmar Vowel Sign Geba ..Myanmar Vowel Sign Kayah
-        {0x1082, 0x1082},  // Myanmar Consonant Sign S..Myanmar Consonant Sign S
-        {0x1085, 0x1086},  // Myanmar Vowel Sign Shan ..Myanmar Vowel Sign Shan
-        {0x108d, 0x108d},  // Myanmar Sign Shan Counci..Myanmar Sign Shan Counci
-        {0x109d, 0x109d},  // Myanmar Vowel Sign Aiton..Myanmar Vowel Sign Aiton
-        {0x135d, 0x135f},  // Ethiopic Combining Gemin..Ethiopic Combining Gemin
-        {0x1712, 0x1714},  // Tagalog Vowel Sign I    ..Tagalog Sign Virama
-        {0x1732, 0x1734},  // Hanunoo Vowel Sign I    ..Hanunoo Sign Pamudpod
-        {0x1752, 0x1753},  // Buhid Vowel Sign I      ..Buhid Vowel Sign U
-        {0x1772, 0x1773},  // Tagbanwa Vowel Sign I   ..Tagbanwa Vowel Sign U
-        {0x17b4, 0x17b5},  // Khmer Vowel Inherent Aq ..Khmer Vowel Inherent Aa
-        {0x17b7, 0x17bd},  // Khmer Vowel Sign I      ..Khmer Vowel Sign Ua
-        {0x17c6, 0x17c6},  // Khmer Sign Nikahit      ..Khmer Sign Nikahit
-        {0x17c9, 0x17d3},  // Khmer Sign Muusikatoan  ..Khmer Sign Bathamasat
-        {0x17dd, 0x17dd},  // Khmer Sign Atthacan     ..Khmer Sign Atthacan
-        {0x180b, 0x180d},  // Mongolian Free Variation..Mongolian Free Variation
-        {0x1885, 0x1886},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
-        {0x18a9, 0x18a9},  // Mongolian Letter Ali Gal..Mongolian Letter Ali Gal
-        {0x1920, 0x1922},  // Limbu Vowel Sign A      ..Limbu Vowel Sign U
-        {0x1927, 0x1928},  // Limbu Vowel Sign E      ..Limbu Vowel Sign O
-        {0x1932, 0x1932},  // Limbu Small Letter Anusv..Limbu Small Letter Anusv
-        {0x1939, 0x193b},  // Limbu Sign Mukphreng    ..Limbu Sign Sa-i
-        {0x1a17, 0x1a18},  // Buginese Vowel Sign I   ..Buginese Vowel Sign U
-        {0x1a1b, 0x1a1b},  // Buginese Vowel Sign Ae  ..Buginese Vowel Sign Ae
-        {0x1a56, 0x1a56},  // Tai Tham Consonant Sign ..Tai Tham Consonant Sign
-        {0x1a58, 0x1a5e},  // Tai Tham Sign Mai Kang L..Tai Tham Consonant Sign
-        {0x1a60, 0x1a60},  // Tai Tham Sign Sakot     ..Tai Tham Sign Sakot
-        {0x1a62, 0x1a62},  // Tai Tham Vowel Sign Mai ..Tai Tham Vowel Sign Mai
-        {0x1a65, 0x1a6c},  // Tai Tham Vowel Sign I   ..Tai Tham Vowel Sign Oa B
-        {0x1a73, 0x1a7c},  // Tai Tham Vowel Sign Oa A..Tai Tham Sign Khuen-lue
-        {0x1a7f, 0x1a7f},  // Tai Tham Combining Crypt..Tai Tham Combining Crypt
-        {0x1ab0, 0x1abe},  // Combining Doubled Circum..Combining Parentheses Ov
-        {0x1b00, 0x1b03},  // Balinese Sign Ulu Ricem ..Balinese Sign Surang
-        {0x1b34, 0x1b34},  // Balinese Sign Rerekan   ..Balinese Sign Rerekan
-        {0x1b36, 0x1b3a},  // Balinese Vowel Sign Ulu ..Balinese Vowel Sign Ra R
-        {0x1b3c, 0x1b3c},  // Balinese Vowel Sign La L..Balinese Vowel Sign La L
-        {0x1b42, 0x1b42},  // Balinese Vowel Sign Pepe..Balinese Vowel Sign Pepe
-        {0x1b6b, 0x1b73},  // Balinese Musical Symbol ..Balinese Musical Symbol
-        {0x1b80, 0x1b81},  // Sundanese Sign Panyecek ..Sundanese Sign Panglayar
-        {0x1ba2, 0x1ba5},  // Sundanese Consonant Sign..Sundanese Vowel Sign Pan
-        {0x1ba8, 0x1ba9},  // Sundanese Vowel Sign Pam..Sundanese Vowel Sign Pan
-        {0x1bab, 0x1bad},  // Sundanese Sign Virama   ..Sundanese Consonant Sign
-        {0x1be6, 0x1be6},  // Batak Sign Tompi        ..Batak Sign Tompi
-        {0x1be8, 0x1be9},  // Batak Vowel Sign Pakpak ..Batak Vowel Sign Ee
-        {0x1bed, 0x1bed},  // Batak Vowel Sign Karo O ..Batak Vowel Sign Karo O
-        {0x1bef, 0x1bf1},  // Batak Vowel Sign U F|| S..Batak Consonant Sign H
-        {0x1c2c, 0x1c33},  // Lepcha Vowel Sign E     ..Lepcha Consonant Sign T
-        {0x1c36, 0x1c37},  // Lepcha Sign Ran         ..Lepcha Sign Nukta
-        {0x1cd0, 0x1cd2},  // Vedic Tone Karshana     ..Vedic Tone Prenkha
-        {0x1cd4, 0x1ce0},  // Vedic Sign Yajurvedic Mi..Vedic Tone Rigvedic Kash
-        {0x1ce2, 0x1ce8},  // Vedic Sign Visarga Svari..Vedic Sign Visarga Anuda
-        {0x1ced, 0x1ced},  // Vedic Sign Tiryak       ..Vedic Sign Tiryak
-        {0x1cf4, 0x1cf4},  // Vedic Tone Candra Above ..Vedic Tone Candra Above
-        {0x1cf8, 0x1cf9},  // Vedic Tone Ring Above   ..Vedic Tone Double Ring A
-        {0x1dc0, 0x1df5},  // Combining Dotted Grave A..Combining Up Tack Above
-        {0x1dfb, 0x1dff},  // (nil)                   ..Combining Right Arrowhea
-        {0x20d0, 0x20f0},  // Combining Left Harpoon A..Combining Asterisk Above
-        {0x2cef, 0x2cf1},  // Coptic Combining Ni Abov..Coptic Combining Spiritu
-        {0x2d7f, 0x2d7f},  // Tifinagh Consonant Joine..Tifinagh Consonant Joine
-        {0x2de0, 0x2dff},  // Combining Cyrillic Lette..Combining Cyrillic Lette
-        {0x302a, 0x302d},  // Ideographic Level Tone M..Ideographic Entering Ton
-        {0x3099, 0x309a},  // Combining Katakana-hirag..Combining Katakana-hirag
-        {0xa66f, 0xa672},  // Combining Cyrillic Vzmet..Combining Cyrillic Thous
-        {0xa674, 0xa67d},  // Combining Cyrillic Lette..Combining Cyrillic Payer
-        {0xa69e, 0xa69f},  // Combining Cyrillic Lette..Combining Cyrillic Lette
-        {0xa6f0, 0xa6f1},  // Bamum Combining Mark Koq..Bamum Combining Mark Tuk
-        {0xa802, 0xa802},  // Syloti Nagri Sign Dvisva..Syloti Nagri Sign Dvisva
-        {0xa806, 0xa806},  // Syloti Nagri Sign Hasant..Syloti Nagri Sign Hasant
-        {0xa80b, 0xa80b},  // Syloti Nagri Sign Anusva..Syloti Nagri Sign Anusva
-        {0xa825, 0xa826},  // Syloti Nagri Vowel Sign ..Syloti Nagri Vowel Sign
-        {0xa8c4, 0xa8c5},  // Saurashtra Sign Virama  ..
-        {0xa8e0, 0xa8f1},  // Combining Devanagari Dig..Combining Devanagari Sig
-        {0xa926, 0xa92d},  // Kayah Li Vowel Ue       ..Kayah Li Tone Calya Plop
-        {0xa947, 0xa951},  // Rejang Vowel Sign I     ..Rejang Consonant Sign R
-        {0xa980, 0xa982},  // Javanese Sign Panyangga ..Javanese Sign Layar
-        {0xa9b3, 0xa9b3},  // Javanese Sign Cecak Telu..Javanese Sign Cecak Telu
-        {0xa9b6, 0xa9b9},  // Javanese Vowel Sign Wulu..Javanese Vowel Sign Suku
-        {0xa9bc, 0xa9bc},  // Javanese Vowel Sign Pepe..Javanese Vowel Sign Pepe
-        {0xa9e5, 0xa9e5},  // Myanmar Sign Shan Saw   ..Myanmar Sign Shan Saw
-        {0xaa29, 0xaa2e},  // Cham Vowel Sign Aa      ..Cham Vowel Sign Oe
-        {0xaa31, 0xaa32},  // Cham Vowel Sign Au      ..Cham Vowel Sign Ue
-        {0xaa35, 0xaa36},  // Cham Consonant Sign La  ..Cham Consonant Sign Wa
-        {0xaa43, 0xaa43},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
-        {0xaa4c, 0xaa4c},  // Cham Consonant Sign Fina..Cham Consonant Sign Fina
-        {0xaa7c, 0xaa7c},  // Myanmar Sign Tai Laing T..Myanmar Sign Tai Laing T
-        {0xaab0, 0xaab0},  // Tai Viet Mai Kang       ..Tai Viet Mai Kang
-        {0xaab2, 0xaab4},  // Tai Viet Vowel I        ..Tai Viet Vowel U
-        {0xaab7, 0xaab8},  // Tai Viet Mai Khit       ..Tai Viet Vowel Ia
-        {0xaabe, 0xaabf},  // Tai Viet Vowel Am       ..Tai Viet Tone Mai Ek
-        {0xaac1, 0xaac1},  // Tai Viet Tone Mai Tho   ..Tai Viet Tone Mai Tho
-        {0xaaec, 0xaaed},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xaaf6, 0xaaf6},  // Meetei Mayek Virama     ..Meetei Mayek Virama
-        {0xabe5, 0xabe5},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xabe8, 0xabe8},  // Meetei Mayek Vowel Sign ..Meetei Mayek Vowel Sign
-        {0xabed, 0xabed},  // Meetei Mayek Apun Iyek  ..Meetei Mayek Apun Iyek
-        {0xfb1e, 0xfb1e},  // Hebrew Point Judeo-spani..Hebrew Point Judeo-spani
-        {0xfe00, 0xfe0f},  // Variation Select||-1    ..Variation Select||-16
-        {0xfe20, 0xfe2f},  // Combining Ligature Left ..Combining Cyrillic Titlo
-        {0x101fd, 0x101fd},  // Phaistos Disc Sign Combi..Phaistos Disc Sign Combi
-        {0x102e0, 0x102e0},  // Coptic Epact Thousands M..Coptic Epact Thousands M
-        {0x10376, 0x1037a},  // Combining Old Permic Let..Combining Old Permic Let
-        {0x10a01, 0x10a03},  // Kharoshthi Vowel Sign I ..Kharoshthi Vowel Sign Vo
-        {0x10a05, 0x10a06},  // Kharoshthi Vowel Sign E ..Kharoshthi Vowel Sign O
-        {0x10a0c, 0x10a0f},  // Kharoshthi Vowel Length ..Kharoshthi Sign Visarga
-        {0x10a38, 0x10a3a},  // Kharoshthi Sign Bar Abov..Kharoshthi Sign Dot Belo
-        {0x10a3f, 0x10a3f},  // Kharoshthi Virama       ..Kharoshthi Virama
-        {0x10ae5, 0x10ae6},  // Manichaean Abbreviation ..Manichaean Abbreviation
-        {0x11001, 0x11001},  // Brahmi Sign Anusvara    ..Brahmi Sign Anusvara
-        {0x11038, 0x11046},  // Brahmi Vowel Sign Aa    ..Brahmi Virama
-        {0x1107f, 0x11081},  // Brahmi Number Joiner    ..Kaithi Sign Anusvara
-        {0x110b3, 0x110b6},  // Kaithi Vowel Sign U     ..Kaithi Vowel Sign Ai
-        {0x110b9, 0x110ba},  // Kaithi Sign Virama      ..Kaithi Sign Nukta
-        {0x11100, 0x11102},  // Chakma Sign Candrabindu ..Chakma Sign Visarga
-        {0x11127, 0x1112b},  // Chakma Vowel Sign A     ..Chakma Vowel Sign Uu
-        {0x1112d, 0x11134},  // Chakma Vowel Sign Ai    ..Chakma Maayyaa
-        {0x11173, 0x11173},  // Mahajani Sign Nukta     ..Mahajani Sign Nukta
-        {0x11180, 0x11181},  // Sharada Sign Candrabindu..Sharada Sign Anusvara
-        {0x111b6, 0x111be},  // Sharada Vowel Sign U    ..Sharada Vowel Sign O
-        {0x111ca, 0x111cc},  // Sharada Sign Nukta      ..Sharada Extra Sh||t Vowe
-        {0x1122f, 0x11231},  // Khojki Vowel Sign U     ..Khojki Vowel Sign Ai
-        {0x11234, 0x11234},  // Khojki Sign Anusvara    ..Khojki Sign Anusvara
-        {0x11236, 0x11237},  // Khojki Sign Nukta       ..Khojki Sign Shadda
-        {0x1123e, 0x1123e},  // (nil)                   ..
-        {0x112df, 0x112df},  // Khudawadi Sign Anusvara ..Khudawadi Sign Anusvara
-        {0x112e3, 0x112ea},  // Khudawadi Vowel Sign U  ..Khudawadi Sign Virama
-        {0x11300, 0x11301},  // Grantha Sign Combining A..Grantha Sign Candrabindu
-        {0x1133c, 0x1133c},  // Grantha Sign Nukta      ..Grantha Sign Nukta
-        {0x11340, 0x11340},  // Grantha Vowel Sign Ii   ..Grantha Vowel Sign Ii
-        {0x11366, 0x1136c},  // Combining Grantha Digit ..Combining Grantha Digit
-        {0x11370, 0x11374},  // Combining Grantha Letter..Combining Grantha Letter
-        {0x11438, 0x1143f},  // (nil)                   ..
-        {0x11442, 0x11444},  // (nil)                   ..
-        {0x11446, 0x11446},  // (nil)                   ..
-        {0x114b3, 0x114b8},  // Tirhuta Vowel Sign U    ..Tirhuta Vowel Sign Vocal
-        {0x114ba, 0x114ba},  // Tirhuta Vowel Sign Sh||t..Tirhuta Vowel Sign Sh||t
-        {0x114bf, 0x114c0},  // Tirhuta Sign Candrabindu..Tirhuta Sign Anusvara
-        {0x114c2, 0x114c3},  // Tirhuta Sign Virama     ..Tirhuta Sign Nukta
-        {0x115b2, 0x115b5},  // Siddham Vowel Sign U    ..Siddham Vowel Sign Vocal
-        {0x115bc, 0x115bd},  // Siddham Sign Candrabindu..Siddham Sign Anusvara
-        {0x115bf, 0x115c0},  // Siddham Sign Virama     ..Siddham Sign Nukta
-        {0x115dc, 0x115dd},  // Siddham Vowel Sign Alter..Siddham Vowel Sign Alter
-        {0x11633, 0x1163a},  // Modi Vowel Sign U       ..Modi Vowel Sign Ai
-        {0x1163d, 0x1163d},  // Modi Sign Anusvara      ..Modi Sign Anusvara
-        {0x1163f, 0x11640},  // Modi Sign Virama        ..Modi Sign Ardhacandra
-        {0x116ab, 0x116ab},  // Takri Sign Anusvara     ..Takri Sign Anusvara
-        {0x116ad, 0x116ad},  // Takri Vowel Sign Aa     ..Takri Vowel Sign Aa
-        {0x116b0, 0x116b5},  // Takri Vowel Sign U      ..Takri Vowel Sign Au
-        {0x116b7, 0x116b7},  // Takri Sign Nukta        ..Takri Sign Nukta
-        {0x1171d, 0x1171f},  // Ahom Consonant Sign Medi..Ahom Consonant Sign Medi
-        {0x11722, 0x11725},  // Ahom Vowel Sign I       ..Ahom Vowel Sign Uu
-        {0x11727, 0x1172b},  // Ahom Vowel Sign Aw      ..Ahom Sign Killer
-        {0x11c30, 0x11c36},  // (nil)                   ..
-        {0x11c38, 0x11c3d},  // (nil)                   ..
-        {0x11c3f, 0x11c3f},  // (nil)                   ..
-        {0x11c92, 0x11ca7},  // (nil)                   ..
-        {0x11caa, 0x11cb0},  // (nil)                   ..
-        {0x11cb2, 0x11cb3},  // (nil)                   ..
-        {0x11cb5, 0x11cb6},  // (nil)                   ..
-        {0x16af0, 0x16af4},  // Bassa Vah Combining High..Bassa Vah Combining High
-        {0x16b30, 0x16b36},  // Pahawh Hmong Mark Cim Tu..Pahawh Hmong Mark Cim Ta
-        {0x16f8f, 0x16f92},  // Miao Tone Right         ..Miao Tone Below
-        {0x1bc9d, 0x1bc9e},  // Duployan Thick Letter Se..Duployan Double Mark
-        {0x1d167, 0x1d169},  // Musical Symbol Combining..Musical Symbol Combining
-        {0x1d17b, 0x1d182},  // Musical Symbol Combining..Musical Symbol Combining
-        {0x1d185, 0x1d18b},  // Musical Symbol Combining..Musical Symbol Combining
-        {0x1d1aa, 0x1d1ad},  // Musical Symbol Combining..Musical Symbol Combining
-        {0x1d242, 0x1d244},  // Combining Greek Musical ..Combining Greek Musical
-        {0x1da00, 0x1da36},  // Signwriting Head Rim    ..Signwriting Air Sucking
-        {0x1da3b, 0x1da6c},  // Signwriting Mouth Closed..Signwriting Excitement
-        {0x1da75, 0x1da75},  // Signwriting Upper Body T..Signwriting Upper Body T
-        {0x1da84, 0x1da84},  // Signwriting Location Hea..Signwriting Location Hea
-        {0x1da9b, 0x1da9f},  // Signwriting Fill Modifie..Signwriting Fill Modifie
-        {0x1daa1, 0x1daaf},  // Signwriting Rotation Mod..Signwriting Rotation Mod
-        {0x1e000, 0x1e006},  // (nil)                   ..
-        {0x1e008, 0x1e018},  // (nil)                   ..
-        {0x1e01b, 0x1e021},  // (nil)                   ..
-        {0x1e023, 0x1e024},  // (nil)                   ..
-        {0x1e026, 0x1e02a},  // (nil)                   ..
-        {0x1e8d0, 0x1e8d6},  // Mende Kikakui Combining ..Mende Kikakui Combining
-        {0x1e944, 0x1e94a},  // (nil)                   ..
-        {0xe0100, 0xe01ef},  // Variation Select||-17   ..Variation Select||-256
-    };
-
-    // https://github.com/jquast/wcwidth/blob/master/wcwidth/table_wide.py
-    // at commit 0d7de112202cc8b2ebe9232ff4a5c954f19d561a (2016-07-02):
-    private static final int[][] WIDE_EASTASIAN = {
-        {0x1100, 0x115f},  // Hangul Choseong Kiyeok  ..Hangul Choseong Filler
-        {0x231a, 0x231b},  // Watch                   ..Hourglass
-        {0x2329, 0x232a},  // Left-pointing Angle Brac..Right-pointing Angle Bra
-        {0x23e9, 0x23ec},  // Black Right-pointing Dou..Black Down-pointing Doub
-        {0x23f0, 0x23f0},  // Alarm Clock             ..Alarm Clock
-        {0x23f3, 0x23f3},  // Hourglass With Flowing S..Hourglass With Flowing S
-        {0x25fd, 0x25fe},  // White Medium Small Squar..Black Medium Small Squar
-        {0x2614, 0x2615},  // Umbrella With Rain Drops..Hot Beverage
-        {0x2648, 0x2653},  // Aries                   ..Pisces
-        {0x267f, 0x267f},  // Wheelchair Symbol       ..Wheelchair Symbol
-        {0x2693, 0x2693},  // Anch||                  ..Anch||
-        {0x26a1, 0x26a1},  // High Voltage Sign       ..High Voltage Sign
-        {0x26aa, 0x26ab},  // Medium White Circle     ..Medium Black Circle
-        {0x26bd, 0x26be},  // Soccer Ball             ..Baseball
-        {0x26c4, 0x26c5},  // Snowman Without Snow    ..Sun Behind Cloud
-        {0x26ce, 0x26ce},  // Ophiuchus               ..Ophiuchus
-        {0x26d4, 0x26d4},  // No Entry                ..No Entry
-        {0x26ea, 0x26ea},  // Church                  ..Church
-        {0x26f2, 0x26f3},  // Fountain                ..Flag In Hole
-        {0x26f5, 0x26f5},  // Sailboat                ..Sailboat
-        {0x26fa, 0x26fa},  // Tent                    ..Tent
-        {0x26fd, 0x26fd},  // Fuel Pump               ..Fuel Pump
-        {0x2705, 0x2705},  // White Heavy Check Mark  ..White Heavy Check Mark
-        {0x270a, 0x270b},  // Raised Fist             ..Raised Hand
-        {0x2728, 0x2728},  // Sparkles                ..Sparkles
-        {0x274c, 0x274c},  // Cross Mark              ..Cross Mark
-        {0x274e, 0x274e},  // Negative Squared Cross M..Negative Squared Cross M
-        {0x2753, 0x2755},  // Black Question Mark ||na..White Exclamation Mark O
-        {0x2757, 0x2757},  // Heavy Exclamation Mark S..Heavy Exclamation Mark S
-        {0x2795, 0x2797},  // Heavy Plus Sign         ..Heavy Division Sign
-        {0x27b0, 0x27b0},  // Curly Loop              ..Curly Loop
-        {0x27bf, 0x27bf},  // Double Curly Loop       ..Double Curly Loop
-        {0x2b1b, 0x2b1c},  // Black Large Square      ..White Large Square
-        {0x2b50, 0x2b50},  // White Medium Star       ..White Medium Star
-        {0x2b55, 0x2b55},  // Heavy Large Circle      ..Heavy Large Circle
-        {0x2e80, 0x2e99},  // Cjk Radical Repeat      ..Cjk Radical Rap
-        {0x2e9b, 0x2ef3},  // Cjk Radical Choke       ..Cjk Radical C-simplified
-        {0x2f00, 0x2fd5},  // Kangxi Radical One      ..Kangxi Radical Flute
-        {0x2ff0, 0x2ffb},  // Ideographic Description ..Ideographic Description
-        {0x3000, 0x303e},  // Ideographic Space       ..Ideographic Variation In
-        {0x3041, 0x3096},  // Hiragana Letter Small A ..Hiragana Letter Small Ke
-        {0x3099, 0x30ff},  // Combining Katakana-hirag..Katakana Digraph Koto
-        {0x3105, 0x312d},  // Bopomofo Letter B       ..Bopomofo Letter Ih
-        {0x3131, 0x318e},  // Hangul Letter Kiyeok    ..Hangul Letter Araeae
-        {0x3190, 0x31ba},  // Ideographic Annotation L..Bopomofo Letter Zy
-        {0x31c0, 0x31e3},  // Cjk Stroke T            ..Cjk Stroke Q
-        {0x31f0, 0x321e},  // Katakana Letter Small Ku..Parenthesized K||ean Cha
-        {0x3220, 0x3247},  // Parenthesized Ideograph ..Circled Ideograph Koto
-        {0x3250, 0x32fe},  // Partnership Sign        ..Circled Katakana Wo
-        {0x3300, 0x4dbf},  // Square Apaato           ..
-        {0x4e00, 0xa48c},  // Cjk Unified Ideograph-4e..Yi Syllable Yyr
-        {0xa490, 0xa4c6},  // Yi Radical Qot          ..Yi Radical Ke
-        {0xa960, 0xa97c},  // Hangul Choseong Tikeut-m..Hangul Choseong Ssangyeo
-        {0xac00, 0xd7a3},  // Hangul Syllable Ga      ..Hangul Syllable Hih
-        {0xf900, 0xfaff},  // Cjk Compatibility Ideogr..
-        {0xfe10, 0xfe19},  // Presentation F||m F|| Ve..Presentation F||m F|| Ve
-        {0xfe30, 0xfe52},  // Presentation F||m F|| Ve..Small Full Stop
-        {0xfe54, 0xfe66},  // Small Semicolon         ..Small Equals Sign
-        {0xfe68, 0xfe6b},  // Small Reverse Solidus   ..Small Commercial At
-        {0xff01, 0xff60},  // Fullwidth Exclamation Ma..Fullwidth Right White Pa
-        {0xffe0, 0xffe6},  // Fullwidth Cent Sign     ..Fullwidth Won Sign
-        {0x16fe0, 0x16fe0},  // (nil)                   ..
-        {0x17000, 0x187ec},  // (nil)                   ..
-        {0x18800, 0x18af2},  // (nil)                   ..
-        {0x1b000, 0x1b001},  // Katakana Letter Archaic ..Hiragana Letter Archaic
-        {0x1f004, 0x1f004},  // Mahjong Tile Red Dragon ..Mahjong Tile Red Dragon
-        {0x1f0cf, 0x1f0cf},  // Playing Card Black Joker..Playing Card Black Joker
-        {0x1f18e, 0x1f18e},  // Negative Squared Ab     ..Negative Squared Ab
-        {0x1f191, 0x1f19a},  // Squared Cl              ..Squared Vs
-        {0x1f200, 0x1f202},  // Square Hiragana Hoka    ..Squared Katakana Sa
-        {0x1f210, 0x1f23b},  // Squared Cjk Unified Ideo..
-        {0x1f240, 0x1f248},  // T||toise Shell Bracketed..T||toise Shell Bracketed
-        {0x1f250, 0x1f251},  // Circled Ideograph Advant..Circled Ideograph Accept
-        {0x1f300, 0x1f320},  // Cyclone                 ..Shooting Star
-        {0x1f32d, 0x1f335},  // Hot Dog                 ..Cactus
-        {0x1f337, 0x1f37c},  // Tulip                   ..Baby Bottle
-        {0x1f37e, 0x1f393},  // Bottle With Popping C||k..Graduation Cap
-        {0x1f3a0, 0x1f3ca},  // Carousel H||se          ..Swimmer
-        {0x1f3cf, 0x1f3d3},  // Cricket Bat And Ball    ..Table Tennis Paddle And
-        {0x1f3e0, 0x1f3f0},  // House Building          ..European Castle
-        {0x1f3f4, 0x1f3f4},  // Waving Black Flag       ..Waving Black Flag
-        {0x1f3f8, 0x1f43e},  // Badminton Racquet And Sh..Paw Prints
-        {0x1f440, 0x1f440},  // Eyes                    ..Eyes
-        {0x1f442, 0x1f4fc},  // Ear                     ..Videocassette
-        {0x1f4ff, 0x1f53d},  // Prayer Beads            ..Down-pointing Small Red
-        {0x1f54b, 0x1f54e},  // Kaaba                   ..Men||ah With Nine Branch
-        {0x1f550, 0x1f567},  // Clock Face One Oclock   ..Clock Face Twelve-thirty
-        {0x1f57a, 0x1f57a},  // (nil)                   ..
-        {0x1f595, 0x1f596},  // Reversed Hand With Middl..Raised Hand With Part Be
-        {0x1f5a4, 0x1f5a4},  // (nil)                   ..
-        {0x1f5fb, 0x1f64f},  // Mount Fuji              ..Person With Folded Hands
-        {0x1f680, 0x1f6c5},  // Rocket                  ..Left Luggage
-        {0x1f6cc, 0x1f6cc},  // Sleeping Accommodation  ..Sleeping Accommodation
-        {0x1f6d0, 0x1f6d2},  // Place Of W||ship        ..
-        {0x1f6eb, 0x1f6ec},  // Airplane Departure      ..Airplane Arriving
-        {0x1f6f4, 0x1f6f6},  // (nil)                   ..
-        {0x1f910, 0x1f91e},  // Zipper-mouth Face       ..
-        {0x1f920, 0x1f927},  // (nil)                   ..
-        {0x1f930, 0x1f930},  // (nil)                   ..
-        {0x1f933, 0x1f93e},  // (nil)                   ..
-        {0x1f940, 0x1f94b},  // (nil)                   ..
-        {0x1f950, 0x1f95e},  // (nil)                   ..
-        {0x1f980, 0x1f991},  // Crab                    ..
-        {0x1f9c0, 0x1f9c0},  // Cheese Wedge            ..Cheese Wedge
-        {0x20000, 0x2fffd},  // Cjk Unified Ideograph-20..
-        {0x30000, 0x3fffd},  // (nil)                   ..
-    };
-
-
-    private static boolean intable(int[][] table, int c) {
-        // First quick check f|| Latin1 etc. characters.
-        if (c < table[0][0]) return false;
-
-        // Binary search in table.
-        int bot = 0;
-        int top = table.length - 1; // (int)(size / sizeof(struct interval) - 1);
-        while (top >= bot) {
-            int mid = (bot + top) / 2;
-            if (table[mid][1] < c) {
-                bot = mid + 1;
-            } else if (table[mid][0] > c) {
-                top = mid - 1;
-            } else {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /** Return the terminal display width of a code point: 0, 1 || 2. */
-    public static int width(int ucs) {
-        if (ucs == 0 ||
-            ucs == 0x034F ||
-            (0x200B <= ucs && ucs <= 0x200F) ||
-            ucs == 0x2028 ||
-            ucs == 0x2029 ||
-            (0x202A <= ucs && ucs <= 0x202E) ||
-            (0x2060 <= ucs && ucs <= 0x2063)) {
-            return 0;
-        }
-
-        // C0/C1 control characters
-        // Termux change: Return 0 instead of -1.
-        if (ucs < 32 || (0x07F <= ucs && ucs < 0x0A0)) return 0;
-
-        // combining characters with zero width
-        if (intable(ZERO_WIDTH, ucs)) return 0;
-
-        return intable(WIDE_EASTASIAN, ucs) ? 2 : 1;
-    }
-
-    /** The width at an index position in a java char array. */
-    public static int width(char[] chars, int index) {
-        char c = chars[index];
-        return Character.isHighSurrogate(c) ? width(Character.toCodePoint(c, chars[index + 1])) : width(c);
-    }
-
-}

app/src/main/java/com/termux/view/TerminalKeyListener.java

@@ -1,37 +0,0 @@
-package com.termux.view;
-
-import android.view.KeyEvent;
-import android.view.MotionEvent;
-import android.view.ScaleGestureDetector;
-
-import com.termux.terminal.TerminalSession;
-
-/**
- * Input and scale listener which may be set on a {@link TerminalView} through
- * {@link TerminalView#setOnKeyListener(TerminalKeyListener)}.
- * <p/>
- * TODO: Rename to TerminalViewClient.
- */
-public interface TerminalKeyListener {
-
-    /** Callback function on scale events according to {@link ScaleGestureDetector#getScaleFactor()}. */
-    float onScale(float scale);
-
-    /** On a single tap on the terminal if terminal mouse reporting not enabled. */
-    void onSingleTapUp(MotionEvent e);
-
-    boolean shouldBackButtonBeMappedToEscape();
-
-    void copyModeChanged(boolean copyMode);
-
-    boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession session);
-
-    boolean onKeyUp(int keyCode, KeyEvent e);
-
-    boolean readControlKey();
-
-    boolean readAltKey();
-
-    boolean onCodePoint(int codePoint, boolean ctrlDown, TerminalSession session);
-
-}

app/src/main/java/com/termux/view/TerminalView.java

@@ -1,906 +0,0 @@
-package com.termux.view;
-
-import android.annotation.SuppressLint;
-import android.annotation.TargetApi;
-import android.content.ClipData;
-import android.content.ClipboardManager;
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Rect;
-import android.graphics.Typeface;
-import android.graphics.drawable.BitmapDrawable;
-import android.os.Build;
-import android.text.InputType;
-import android.text.TextUtils;
-import android.util.AttributeSet;
-import android.util.Log;
-import android.view.ActionMode;
-import android.view.HapticFeedbackConstants;
-import android.view.InputDevice;
-import android.view.KeyCharacterMap;
-import android.view.KeyEvent;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.MotionEvent;
-import android.view.View;
-import android.view.inputmethod.BaseInputConnection;
-import android.view.inputmethod.EditorInfo;
-import android.view.inputmethod.InputConnection;
-import android.widget.Scroller;
-
-import com.termux.R;
-import com.termux.terminal.EmulatorDebug;
-import com.termux.terminal.KeyHandler;
-import com.termux.terminal.TerminalBuffer;
-import com.termux.terminal.TerminalEmulator;
-import com.termux.terminal.TerminalSession;
-
-/** View displaying and interacting with a {@link TerminalSession}. */
-public final class TerminalView extends View {
-
-    /** Log view key and IME events. */
-    private static final boolean LOG_KEY_EVENTS = false;
-
-    /** The currently displayed terminal session, whose emulator is {@link #mEmulator}. */
-    TerminalSession mTermSession;
-    /** Our terminal emulator whose session is {@link #mTermSession}. */
-    TerminalEmulator mEmulator;
-
-    TerminalRenderer mRenderer;
-
-    TerminalKeyListener mOnKeyListener;
-
-    /** The top row of text to display. Ranges from -activeTranscriptRows to 0. */
-    int mTopRow;
-
-    boolean mIsSelectingText = false, mIsDraggingLeftSelection, mInitialTextSelection;
-    int mSelX1 = -1, mSelX2 = -1, mSelY1 = -1, mSelY2 = -1;
-    float mSelectionDownX, mSelectionDownY;
-    private ActionMode mActionMode;
-    private BitmapDrawable mLeftSelectionHandle, mRightSelectionHandle;
-
-    float mScaleFactor = 1.f;
-    final GestureAndScaleRecognizer mGestureRecognizer;
-
-    /** Keep track of where mouse touch event started which we report as mouse scroll. */
-    private int mMouseScrollStartX = -1, mMouseScrollStartY = -1;
-    /** Keep track of the time when a touch event leading to sending mouse scroll events started. */
-    private long mMouseStartDownTime = -1;
-
-    final Scroller mScroller;
-
-    /** What was left in from scrolling movement. */
-    float mScrollRemainder;
-
-    /** If non-zero, this is the last unicode code point received if that was a combining character. */
-    int mCombiningAccent;
-
-    public TerminalView(Context context, AttributeSet attributes) { // NO_UCD (unused code)
-        super(context, attributes);
-        mGestureRecognizer = new GestureAndScaleRecognizer(context, new GestureAndScaleRecognizer.Listener() {
-
-            boolean scrolledWithFinger;
-
-            @Override
-            public boolean onUp(MotionEvent e) {
-                mScrollRemainder = 0.0f;
-                if (mEmulator != null && mEmulator.isMouseTrackingActive() && !mIsSelectingText && !scrolledWithFinger) {
-                    // Quick event processing when mouse tracking is active - do not wait for check of double tapping
-                    // for zooming.
-                    sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON, true);
-                    sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON, false);
-                    return true;
-                }
-                scrolledWithFinger = false;
-                return false;
-            }
-
-            @Override
-            public boolean onSingleTapUp(MotionEvent e) {
-                if (mEmulator == null) return true;
-                if (mIsSelectingText) {
-                    toggleSelectingText(null);
-                    return true;
-                }
-                requestFocus();
-                if (!mEmulator.isMouseTrackingActive()) {
-                    if (!e.isFromSource(InputDevice.SOURCE_MOUSE)) {
-                        mOnKeyListener.onSingleTapUp(e);
-                        return true;
-                    }
-                }
-                return false;
-            }
-
-            @Override
-            public boolean onScroll(MotionEvent e, float distanceX, float distanceY) {
-                if (mEmulator == null || mIsSelectingText) return true;
-                if (mEmulator.isMouseTrackingActive() && e.isFromSource(InputDevice.SOURCE_MOUSE)) {
-                    // If moving with mouse pointer while pressing button, report that instead of scroll.
-                    // This means that we never report moving with button press-events for touch input,
-                    // since we cannot just start sending these events without a starting press event,
-                    // which we do not do for touch input, only mouse in onTouchEvent().
-                    sendMouseEventCode(e, TerminalEmulator.MOUSE_LEFT_BUTTON_MOVED, true);
-                } else {
-                    scrolledWithFinger = true;
-                    distanceY += mScrollRemainder;
-                    int deltaRows = (int) (distanceY / mRenderer.mFontLineSpacing);
-                    mScrollRemainder = distanceY - deltaRows * mRenderer.mFontLineSpacing;
-                    doScroll(e, deltaRows);
-                }
-                return true;
-            }
-
-            @Override
-            public boolean onScale(float focusX, float focusY, float scale) {
-                if (mEmulator == null || mIsSelectingText) return true;
-                mScaleFactor *= scale;
-                mScaleFactor = mOnKeyListener.onScale(mScaleFactor);
-                return true;
-            }
-
-            @Override
-            public boolean onFling(final MotionEvent e2, float velocityX, float velocityY) {
-                if (mEmulator == null || mIsSelectingText) return true;
-                // Do not start scrolling until last fling has been taken care of:
-                if (!mScroller.isFinished()) return true;
-
-                final boolean mouseTrackingAtStartOfFling = mEmulator.isMouseTrackingActive();
-                float SCALE = 0.25f;
-                if (mouseTrackingAtStartOfFling) {
-                    mScroller.fling(0, 0, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.mRows / 2, mEmulator.mRows / 2);
-                } else {
-                    mScroller.fling(0, mTopRow, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.getScreen().getActiveTranscriptRows(), 0);
-                }
-
-                post(new Runnable() {
-                    private int mLastY = 0;
-
-                    @Override
-                    public void run() {
-                        if (mouseTrackingAtStartOfFling != mEmulator.isMouseTrackingActive()) {
-                            mScroller.abortAnimation();
-                            return;
-                        }
-                        if (mScroller.isFinished()) return;
-                        boolean more = mScroller.computeScrollOffset();
-                        int newY = mScroller.getCurrY();
-                        int diff = mouseTrackingAtStartOfFling ? (newY - mLastY) : (newY - mTopRow);
-                        doScroll(e2, diff);
-                        mLastY = newY;
-                        if (more) post(this);
-                    }
-                });
-
-                return true;
-            }
-
-            @Override
-            public boolean onDown(float x, float y) {
-                return false;
-            }
-
-            @Override
-            public boolean onDoubleTap(MotionEvent e) {
-                // Do not treat is as a single confirmed tap - it may be followed by zoom.
-                return false;
-            }
-
-            @Override
-            public void onLongPress(MotionEvent e) {
-                if (!mGestureRecognizer.isInProgress() && !mIsSelectingText) {
-                    performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
-                    toggleSelectingText(e);
-                }
-            }
-        });
-        mScroller = new Scroller(context);
-    }
-
-    /**
-     * @param onKeyListener Listener for all kinds of key events, both hardware and IME (which makes it different from that
-     *                      available with {@link View#setOnKeyListener(OnKeyListener)}.
-     */
-    public void setOnKeyListener(TerminalKeyListener onKeyListener) {
-        this.mOnKeyListener = onKeyListener;
-    }
-
-    /**
-     * Attach a {@link TerminalSession} to this view.
-     *
-     * @param session The {@link TerminalSession} this view will be displaying.
-     */
-    public boolean attachSession(TerminalSession session) {
-        if (session == mTermSession) return false;
-        mTopRow = 0;
-
-        mTermSession = session;
-        mEmulator = null;
-        mCombiningAccent = 0;
-
-        updateSize();
-
-        // Wait with enabling the scrollbar until we have a terminal to get scroll position from.
-        setVerticalScrollBarEnabled(true);
-
-        return true;
-    }
-
-    @Override
-    public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
-        // Using InputType.NULL is the most correct input type and avoids issues with other hacks.
-        //
-        // Previous keyboard issues:
-        // https://github.com/termux/termux-packages/issues/25
-        // https://github.com/termux/termux-app/issues/87.
-        // https://github.com/termux/termux-app/issues/126 for breakage from that.
-        outAttrs.inputType = InputType.TYPE_NULL;
-
-        // Let part of the application show behind when in landscape:
-        outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_FULLSCREEN;
-
-        return new BaseInputConnection(this, true) {
-
-            @Override
-            public boolean finishComposingText() {
-                if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "IME: finishComposingText()");
-                commitText(getEditable(), 0);
-
-                // Clear the editable.
-                getEditable().clear();
-
-                return true;
-            }
-
-            @Override
-            public boolean commitText(CharSequence text, int newCursorPosition) {
-                if (LOG_KEY_EVENTS)
-                    Log.i(EmulatorDebug.LOG_TAG, "IME: commitText(\"" + text + "\", " + newCursorPosition + ")");
-                if (mEmulator == null) return true;
-                final int textLengthInChars = text.length();
-                for (int i = 0; i < textLengthInChars; i++) {
-                    char firstChar = text.charAt(i);
-                    int codePoint;
-                    if (Character.isHighSurrogate(firstChar)) {
-                        if (++i < textLengthInChars) {
-                            codePoint = Character.toCodePoint(firstChar, text.charAt(i));
-                        } else {
-                            // At end of string, with no low surrogate following the high:
-                            codePoint = TerminalEmulator.UNICODE_REPLACEMENT_CHAR;
-                        }
-                    } else {
-                        codePoint = firstChar;
-                    }
-
-                    boolean ctrlHeld = false;
-                    if (codePoint <= 31 && codePoint != 27) {
-                        // E.g. penti keyboard for ctrl input.
-                        ctrlHeld = true;
-                        switch (codePoint) {
-                            case 31:
-                                codePoint = '_';
-                                break;
-                            case 30:
-                                codePoint = '^';
-                                break;
-                            case 29:
-                                codePoint = ']';
-                                break;
-                            case 28:
-                                codePoint = '\\';
-                                break;
-                            default:
-                                codePoint += 96;
-                                break;
-                        }
-                    }
-
-                    inputCodePoint(codePoint, ctrlHeld, false);
-                }
-
-                return true;
-            }
-
-            @Override
-            public boolean deleteSurroundingText(int leftLength, int rightLength) {
-                if (LOG_KEY_EVENTS)
-                    Log.i(EmulatorDebug.LOG_TAG, "IME: deleteSurroundingText(" + leftLength + ", " + rightLength + ")");
-                // If leftLength=2 it may be due to a UTF-16 surrogate pair. So we cannot send
-                // multiple key events for that. Let's just hope that keyboards don't use
-                // leftLength > 1 for other purposes (such as holding down backspace for repeat).
-                sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL));
-                return true;
-            }
-
-            @Override
-            public boolean setComposingText(CharSequence text, int newCursorPosition) {
-                if (LOG_KEY_EVENTS)
-                    Log.i(EmulatorDebug.LOG_TAG, "IME: setComposingText(\"" + text  + "\", " + newCursorPosition + ")");
-
-                if (text.length() == 0) {
-                    // Avoid log spam "SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot
-                    // have a zero length" when backspacing with the Google keyboard.
-                    getEditable().clear();
-                } else {
-                    super.setComposingText(text, newCursorPosition);
-                }
-                return true;
-            }
-        };
-    }
-
-    @Override
-    protected int computeVerticalScrollRange() {
-        return mEmulator == null ? 1 : mEmulator.getScreen().getActiveRows();
-    }
-
-    @Override
-    protected int computeVerticalScrollExtent() {
-        return mEmulator == null ? 1 : mEmulator.mRows;
-    }
-
-    @Override
-    protected int computeVerticalScrollOffset() {
-        return mEmulator == null ? 1 : mEmulator.getScreen().getActiveRows() + mTopRow - mEmulator.mRows;
-    }
-
-    public void onScreenUpdated() {
-        if (mEmulator == null) return;
-
-        boolean skipScrolling = false;
-        if (mIsSelectingText) {
-            // Do not scroll when selecting text.
-            int rowsInHistory = mEmulator.getScreen().getActiveTranscriptRows();
-            int rowShift = mEmulator.getScrollCounter();
-            if (-mTopRow + rowShift > rowsInHistory) {
-                // .. unless we're hitting the end of history transcript, in which
-                // case we abort text selection and scroll to end.
-                toggleSelectingText(null);
-            } else {
-                skipScrolling = true;
-                mTopRow -= rowShift;
-                mSelY1 -= rowShift;
-                mSelY2 -= rowShift;
-            }
-        }
-
-        if (!skipScrolling && mTopRow != 0) {
-            // Scroll down if not already there.
-            if (mTopRow < -3) {
-                // Awaken scroll bars only if scrolling a noticeable amount
-                // - we do not want visible scroll bars during normal typing
-                // of one row at a time.
-                awakenScrollBars();
-            }
-            mTopRow = 0;
-        }
-
-        mEmulator.clearScrollCounter();
-
-        invalidate();
-    }
-
-    /**
-     * Sets the text size, which in turn sets the number of rows and columns.
-     *
-     * @param textSize the new font size, in density-independent pixels.
-     */
-    public void setTextSize(int textSize) {
-        mRenderer = new TerminalRenderer(textSize, mRenderer == null ? Typeface.MONOSPACE : mRenderer.mTypeface);
-        updateSize();
-    }
-
-    public void setTypeface(Typeface newTypeface) {
-        mRenderer = new TerminalRenderer(mRenderer.mTextSize, newTypeface);
-        updateSize();
-        invalidate();
-    }
-
-    @Override
-    public boolean onCheckIsTextEditor() {
-        return true;
-    }
-
-    @Override
-    public boolean isOpaque() {
-        return true;
-    }
-
-    /** Send a single mouse event code to the terminal. */
-    void sendMouseEventCode(MotionEvent e, int button, boolean pressed) {
-        int x = (int) (e.getX() / mRenderer.mFontWidth) + 1;
-        int y = (int) ((e.getY() - mRenderer.mFontLineSpacingAndAscent) / mRenderer.mFontLineSpacing) + 1;
-        if (pressed && (button == TerminalEmulator.MOUSE_WHEELDOWN_BUTTON || button == TerminalEmulator.MOUSE_WHEELUP_BUTTON)) {
-            if (mMouseStartDownTime == e.getDownTime()) {
-                x = mMouseScrollStartX;
-                y = mMouseScrollStartY;
-            } else {
-                mMouseStartDownTime = e.getDownTime();
-                mMouseScrollStartX = x;
-                mMouseScrollStartY = y;
-            }
-        }
-        mEmulator.sendMouseEvent(button, x, y, pressed);
-    }
-
-    /** Perform a scroll, either from dragging the screen or by scrolling a mouse wheel. */
-    void doScroll(MotionEvent event, int rowsDown) {
-        boolean up = rowsDown < 0;
-        int amount = Math.abs(rowsDown);
-        for (int i = 0; i < amount; i++) {
-            if (mEmulator.isMouseTrackingActive()) {
-                sendMouseEventCode(event, up ? TerminalEmulator.MOUSE_WHEELUP_BUTTON : TerminalEmulator.MOUSE_WHEELDOWN_BUTTON, true);
-            } else if (mEmulator.isAlternateBufferActive()) {
-                // Send up and down key events for scrolling, which is what some terminals do to make scroll work in
-                // e.g. less, which shifts to the alt screen without mouse handling.
-                handleKeyCode(up ? KeyEvent.KEYCODE_DPAD_UP : KeyEvent.KEYCODE_DPAD_DOWN, 0);
-            } else {
-                mTopRow = Math.min(0, Math.max(-(mEmulator.getScreen().getActiveTranscriptRows()), mTopRow + (up ? -1 : 1)));
-                if (!awakenScrollBars()) invalidate();
-            }
-        }
-    }
-
-    /** Overriding {@link View#onGenericMotionEvent(MotionEvent)}. */
-    @Override
-    public boolean onGenericMotionEvent(MotionEvent event) {
-        if (mEmulator != null && event.isFromSource(InputDevice.SOURCE_MOUSE) && event.getAction() == MotionEvent.ACTION_SCROLL) {
-            // Handle mouse wheel scrolling.
-            boolean up = event.getAxisValue(MotionEvent.AXIS_VSCROLL) > 0.0f;
-            doScroll(event, up ? -3 : 3);
-            return true;
-        }
-        return false;
-    }
-
-    @SuppressLint("ClickableViewAccessibility")
-    @Override
-    @TargetApi(23)
-    public boolean onTouchEvent(MotionEvent ev) {
-        if (mEmulator == null) return true;
-        final int action = ev.getAction();
-
-        if (mIsSelectingText) {
-            int cy = (int) (ev.getY() / mRenderer.mFontLineSpacing) + mTopRow;
-            int cx = (int) (ev.getX() / mRenderer.mFontWidth);
-
-            switch (action) {
-                case MotionEvent.ACTION_UP:
-                    mInitialTextSelection = false;
-                    break;
-                case MotionEvent.ACTION_DOWN:
-                    int distanceFromSel1 = Math.abs(cx - mSelX1) + Math.abs(cy - mSelY1);
-                    int distanceFromSel2 = Math.abs(cx - mSelX2) + Math.abs(cy - mSelY2);
-                    mIsDraggingLeftSelection = distanceFromSel1 <= distanceFromSel2;
-                    mSelectionDownX = ev.getX();
-                    mSelectionDownY = ev.getY();
-                    break;
-                case MotionEvent.ACTION_MOVE:
-                    if (mInitialTextSelection) break;
-                    float deltaX = ev.getX() - mSelectionDownX;
-                    float deltaY = ev.getY() - mSelectionDownY;
-                    int deltaCols = (int) Math.ceil(deltaX / mRenderer.mFontWidth);
-                    int deltaRows = (int) Math.ceil(deltaY / mRenderer.mFontLineSpacing);
-                    mSelectionDownX += deltaCols * mRenderer.mFontWidth;
-                    mSelectionDownY += deltaRows * mRenderer.mFontLineSpacing;
-                    if (mIsDraggingLeftSelection) {
-                        mSelX1 += deltaCols;
-                        mSelY1 += deltaRows;
-                    } else {
-                        mSelX2 += deltaCols;
-                        mSelY2 += deltaRows;
-                    }
-
-                    mSelX1 = Math.min(mEmulator.mColumns, Math.max(0, mSelX1));
-                    mSelX2 = Math.min(mEmulator.mColumns, Math.max(0, mSelX2));
-
-                    if (mSelY1 == mSelY2 && mSelX1 > mSelX2 || mSelY1 > mSelY2) {
-                        // Switch handles.
-                        mIsDraggingLeftSelection = !mIsDraggingLeftSelection;
-                        int tmpX1 = mSelX1, tmpY1 = mSelY1;
-                        mSelX1 = mSelX2;
-                        mSelY1 = mSelY2;
-                        mSelX2 = tmpX1;
-                        mSelY2 = tmpY1;
-                    }
-
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
-                        mActionMode.invalidateContentRect();
-                    invalidate();
-                    break;
-                default:
-                    break;
-            }
-            mGestureRecognizer.onTouchEvent(ev);
-            return true;
-        } else if (ev.isFromSource(InputDevice.SOURCE_MOUSE)) {
-            if (ev.isButtonPressed(MotionEvent.BUTTON_SECONDARY)) {
-                if (action == MotionEvent.ACTION_DOWN) showContextMenu();
-                return true;
-            } else if (ev.isButtonPressed(MotionEvent.BUTTON_TERTIARY)) {
-                ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-                ClipData clipData = clipboard.getPrimaryClip();
-                if (clipData != null) {
-                    CharSequence paste = clipData.getItemAt(0).coerceToText(getContext());
-                    if (!TextUtils.isEmpty(paste)) mEmulator.paste(paste.toString());
-                }
-            } else if (mEmulator.isMouseTrackingActive()) { // BUTTON_PRIMARY.
-                switch (ev.getAction()) {
-                    case MotionEvent.ACTION_DOWN:
-                    case MotionEvent.ACTION_UP:
-                        sendMouseEventCode(ev, TerminalEmulator.MOUSE_LEFT_BUTTON, ev.getAction() == MotionEvent.ACTION_DOWN);
-                        break;
-                    case MotionEvent.ACTION_MOVE:
-                        sendMouseEventCode(ev, TerminalEmulator.MOUSE_LEFT_BUTTON_MOVED, true);
-                        break;
-                }
-                return true;
-            }
-        }
-
-        mGestureRecognizer.onTouchEvent(ev);
-        return true;
-    }
-
-    @Override
-    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
-        if (LOG_KEY_EVENTS)
-            Log.i(EmulatorDebug.LOG_TAG, "onKeyPreIme(keyCode=" + keyCode + ", event=" + event + ")");
-        if (keyCode == KeyEvent.KEYCODE_BACK) {
-            if (mIsSelectingText) {
-                toggleSelectingText(null);
-                return true;
-            } else if (mOnKeyListener.shouldBackButtonBeMappedToEscape()) {
-                // Intercept back button to treat it as escape:
-                switch (event.getAction()) {
-                    case KeyEvent.ACTION_DOWN:
-                        return onKeyDown(keyCode, event);
-                    case KeyEvent.ACTION_UP:
-                        return onKeyUp(keyCode, event);
-                }
-            }
-        }
-        return super.onKeyPreIme(keyCode, event);
-    }
-
-    @Override
-    public boolean onKeyDown(int keyCode, KeyEvent event) {
-        if (LOG_KEY_EVENTS)
-            Log.i(EmulatorDebug.LOG_TAG, "onKeyDown(keyCode=" + keyCode + ", isSystem()=" + event.isSystem() + ", event=" + event + ")");
-        if (mEmulator == null) return true;
-
-        if (mOnKeyListener.onKeyDown(keyCode, event, mTermSession)) {
-            invalidate();
-            return true;
-        } else if (event.isSystem() && (!mOnKeyListener.shouldBackButtonBeMappedToEscape() || keyCode != KeyEvent.KEYCODE_BACK)) {
-            return super.onKeyDown(keyCode, event);
-        } else if (event.getAction() == KeyEvent.ACTION_MULTIPLE && keyCode == KeyEvent.KEYCODE_UNKNOWN) {
-            mTermSession.write(event.getCharacters());
-            return true;
-        }
-
-        final int metaState = event.getMetaState();
-        final boolean controlDownFromEvent = event.isCtrlPressed();
-        final boolean leftAltDownFromEvent = (metaState & KeyEvent.META_ALT_LEFT_ON) != 0;
-        final boolean rightAltDownFromEvent = (metaState & KeyEvent.META_ALT_RIGHT_ON) != 0;
-
-        int keyMod = 0;
-        if (controlDownFromEvent) keyMod |= KeyHandler.KEYMOD_CTRL;
-        if (event.isAltPressed()) keyMod |= KeyHandler.KEYMOD_ALT;
-        if (event.isShiftPressed()) keyMod |= KeyHandler.KEYMOD_SHIFT;
-        if (handleKeyCode(keyCode, keyMod)) {
-            if (LOG_KEY_EVENTS) Log.i(EmulatorDebug.LOG_TAG, "handleKeyCode() took key event");
-            return true;
-        }
-
-        // Clear Ctrl since we handle that ourselves:
-        int bitsToClear = KeyEvent.META_CTRL_MASK;
-        if (rightAltDownFromEvent) {
-            // Let right Alt/Alt Gr be used to compose characters.
-        } else {
-            // Use left alt to send to terminal (e.g. Left Alt+B to jump back a word), so remove:
-            bitsToClear |= KeyEvent.META_ALT_ON | KeyEvent.META_ALT_LEFT_ON;
-        }
-        int effectiveMetaState = event.getMetaState() & ~bitsToClear;
-
-        int result = event.getUnicodeChar(effectiveMetaState);
-        if (LOG_KEY_EVENTS)
-            Log.i(EmulatorDebug.LOG_TAG, "KeyEvent#getUnicodeChar(" + effectiveMetaState + ") returned: " + result);
-        if (result == 0) {
-            return true;
-        }
-
-        int oldCombiningAccent = mCombiningAccent;
-        if ((result & KeyCharacterMap.COMBINING_ACCENT) != 0) {
-            // If entered combining accent previously, write it out:
-            if (mCombiningAccent != 0)
-                inputCodePoint(mCombiningAccent, controlDownFromEvent, leftAltDownFromEvent);
-            mCombiningAccent = result & KeyCharacterMap.COMBINING_ACCENT_MASK;
-        } else {
-            if (mCombiningAccent != 0) {
-                int combinedChar = KeyCharacterMap.getDeadChar(mCombiningAccent, result);
-                if (combinedChar > 0) result = combinedChar;
-                mCombiningAccent = 0;
-            }
-            inputCodePoint(result, controlDownFromEvent, leftAltDownFromEvent);
-        }
-
-        if (mCombiningAccent != oldCombiningAccent) invalidate();
-
-        return true;
-    }
-
-    void inputCodePoint(int codePoint, boolean controlDownFromEvent, boolean leftAltDownFromEvent) {
-        if (LOG_KEY_EVENTS) {
-            Log.i(EmulatorDebug.LOG_TAG, "inputCodePoint(codePoint=" + codePoint + ", controlDownFromEvent=" + controlDownFromEvent + ", leftAltDownFromEvent="
-                + leftAltDownFromEvent + ")");
-        }
-
-        final boolean controlDown = controlDownFromEvent || mOnKeyListener.readControlKey();
-        final boolean altDown = leftAltDownFromEvent || mOnKeyListener.readAltKey();
-
-        if (mOnKeyListener.onCodePoint(codePoint, controlDown, mTermSession)) return;
-
-        if (controlDown) {
-            if (codePoint >= 'a' && codePoint <= 'z') {
-                codePoint = codePoint - 'a' + 1;
-            } else if (codePoint >= 'A' && codePoint <= 'Z') {
-                codePoint = codePoint - 'A' + 1;
-            } else if (codePoint == ' ' || codePoint == '2') {
-                codePoint = 0;
-            } else if (codePoint == '[' || codePoint == '3') {
-                codePoint = 27; // ^[ (Esc)
-            } else if (codePoint == '\\' || codePoint == '4') {
-                codePoint = 28;
-            } else if (codePoint == ']' || codePoint == '5') {
-                codePoint = 29;
-            } else if (codePoint == '^' || codePoint == '6') {
-                codePoint = 30; // control-^
-            } else if (codePoint == '_' || codePoint == '7' || codePoint == '/') {
-                // "Ctrl-/ sends 0x1f which is equivalent of Ctrl-_ since the days of VT102"
-                // - http://apple.stackexchange.com/questions/24261/how-do-i-send-c-that-is-control-slash-to-the-terminal
-                codePoint = 31;
-            } else if (codePoint == '8') {
-                codePoint = 127; // DEL
-            }
-        }
-
-        if (codePoint > -1) {
-            // Work around bluetooth keyboards sending funny unicode characters instead
-            // of the more normal ones from ASCII that terminal programs expect - the
-            // desire to input the original characters should be low.
-            switch (codePoint) {
-                case 0x02DC: // SMALL TILDE.
-                    codePoint = 0x007E; // TILDE (~).
-                    break;
-                case 0x02CB: // MODIFIER LETTER GRAVE ACCENT.
-                    codePoint = 0x0060; // GRAVE ACCENT (`).
-                    break;
-                case 0x02C6: // MODIFIER LETTER CIRCUMFLEX ACCENT.
-                    codePoint = 0x005E; // CIRCUMFLEX ACCENT (^).
-                    break;
-            }
-
-            // If left alt, send escape before the code point to make e.g. Alt+B and Alt+F work in readline:
-            mTermSession.writeCodePoint(altDown, codePoint);
-        }
-    }
-
-    /** Input the specified keyCode if applicable and return if the input was consumed. */
-    public boolean handleKeyCode(int keyCode, int keyMod) {
-        TerminalEmulator term = mTermSession.getEmulator();
-        String code = KeyHandler.getCode(keyCode, keyMod, term.isCursorKeysApplicationMode(), term.isKeypadApplicationMode());
-        if (code == null) return false;
-        mTermSession.write(code);
-        return true;
-    }
-
-    /**
-     * Called when a key is released in the view.
-     *
-     * @param keyCode The keycode of the key which was released.
-     * @param event   A {@link KeyEvent} describing the event.
-     * @return Whether the event was handled.
-     */
-    @Override
-    public boolean onKeyUp(int keyCode, KeyEvent event) {
-        if (LOG_KEY_EVENTS)
-            Log.i(EmulatorDebug.LOG_TAG, "onKeyUp(keyCode=" + keyCode + ", event=" + event + ")");
-        if (mEmulator == null) return true;
-
-        if (mOnKeyListener.onKeyUp(keyCode, event)) {
-            invalidate();
-            return true;
-        } else if (event.isSystem()) {
-            // Let system key events through.
-            return super.onKeyUp(keyCode, event);
-        }
-
-        return true;
-    }
-
-    /**
-     * This is called during layout when the size of this view has changed. If you were just added to the view
-     * hierarchy, you're called with the old values of 0.
-     */
-    @Override
-    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
-        updateSize();
-    }
-
-    /** Check if the terminal size in rows and columns should be updated. */
-    public void updateSize() {
-        int viewWidth = getWidth();
-        int viewHeight = getHeight();
-        if (viewWidth == 0 || viewHeight == 0 || mTermSession == null) return;
-
-        // Set to 80 and 24 if you want to enable vttest.
-        int newColumns = Math.max(4, (int) (viewWidth / mRenderer.mFontWidth));
-        int newRows = Math.max(4, (viewHeight - mRenderer.mFontLineSpacingAndAscent) / mRenderer.mFontLineSpacing);
-
-        if (mEmulator == null || (newColumns != mEmulator.mColumns || newRows != mEmulator.mRows)) {
-            mTermSession.updateSize(newColumns, newRows);
-            mEmulator = mTermSession.getEmulator();
-
-            mTopRow = 0;
-            scrollTo(0, 0);
-            invalidate();
-        }
-    }
-
-    @Override
-    protected void onDraw(Canvas canvas) {
-        if (mEmulator == null) {
-            canvas.drawColor(0XFF000000);
-        } else {
-            mRenderer.render(mEmulator, canvas, mTopRow, mSelY1, mSelY2, mSelX1, mSelX2);
-
-            if (mIsSelectingText) {
-                final int gripHandleWidth = mLeftSelectionHandle.getIntrinsicWidth();
-                final int gripHandleMargin = gripHandleWidth / 4; // See the png.
-
-                int right = Math.round((mSelX1) * mRenderer.mFontWidth) + gripHandleMargin;
-                int top = (mSelY1 + 1 - mTopRow) * mRenderer.mFontLineSpacing + mRenderer.mFontLineSpacingAndAscent;
-                mLeftSelectionHandle.setBounds(right - gripHandleWidth, top, right, top + mLeftSelectionHandle.getIntrinsicHeight());
-                mLeftSelectionHandle.draw(canvas);
-
-                int left = Math.round((mSelX2 + 1) * mRenderer.mFontWidth) - gripHandleMargin;
-                top = (mSelY2 + 1 - mTopRow) * mRenderer.mFontLineSpacing + mRenderer.mFontLineSpacingAndAscent;
-                mRightSelectionHandle.setBounds(left, top, left + gripHandleWidth, top + mRightSelectionHandle.getIntrinsicHeight());
-                mRightSelectionHandle.draw(canvas);
-            }
-        }
-    }
-
-    /** Toggle text selection mode in the view. */
-    @TargetApi(23)
-    public void toggleSelectingText(MotionEvent ev) {
-        mIsSelectingText = !mIsSelectingText;
-        mOnKeyListener.copyModeChanged(mIsSelectingText);
-
-        if (mIsSelectingText) {
-            if (mLeftSelectionHandle == null) {
-                mLeftSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_left_material);
-                mRightSelectionHandle = (BitmapDrawable) getContext().getDrawable(R.drawable.text_select_handle_right_material);
-            }
-
-            int cx = (int) (ev.getX() / mRenderer.mFontWidth);
-            final boolean eventFromMouse = ev.isFromSource(InputDevice.SOURCE_MOUSE);
-            // Offset for finger:
-            final int SELECT_TEXT_OFFSET_Y = eventFromMouse ? 0 : -40;
-            int cy = (int) ((ev.getY() + SELECT_TEXT_OFFSET_Y) / mRenderer.mFontLineSpacing) + mTopRow;
-
-            mSelX1 = mSelX2 = cx;
-            mSelY1 = mSelY2 = cy;
-
-            TerminalBuffer screen = mEmulator.getScreen();
-            if (!" ".equals(screen.getSelectedText(mSelX1, mSelY1, mSelX1, mSelY1))) {
-                // Selecting something other than whitespace. Expand to word.
-                while (mSelX1 > 0 && !"".equals(screen.getSelectedText(mSelX1 - 1, mSelY1, mSelX1 - 1, mSelY1))) {
-                    mSelX1--;
-                }
-                while (mSelX2 < mEmulator.mColumns - 1 && !"".equals(screen.getSelectedText(mSelX2 + 1, mSelY1, mSelX2 + 1, mSelY1))) {
-                    mSelX2++;
-                }
-            }
-
-            mInitialTextSelection = true;
-            mIsDraggingLeftSelection = true;
-            mSelectionDownX = ev.getX();
-            mSelectionDownY = ev.getY();
-
-            final ActionMode.Callback callback = new ActionMode.Callback() {
-                @Override
-                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                    int show = MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT;
-
-                    ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-                    menu.add(Menu.NONE, 1, Menu.NONE, R.string.copy_text).setShowAsAction(show);
-                    menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
-                    menu.add(Menu.NONE, 3, Menu.NONE, R.string.text_selection_more);
-                    return true;
-                }
-
-                @Override
-                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                    return false;
-                }
-
-                @Override
-                public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-                    switch (item.getItemId()) {
-                        case 1:
-                            String selectedText = mEmulator.getSelectedText(mSelX1, mSelY1, mSelX2, mSelY2).trim();
-                            mTermSession.clipboardText(selectedText);
-                            break;
-                        case 2:
-                            ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
-                            ClipData clipData = clipboard.getPrimaryClip();
-                            if (clipData != null) {
-                                CharSequence paste = clipData.getItemAt(0).coerceToText(getContext());
-                                if (!TextUtils.isEmpty(paste)) mEmulator.paste(paste.toString());
-                            }
-                            break;
-                        case 3:
-                            showContextMenu();
-                            break;
-                    }
-                    toggleSelectingText(null);
-                    return true;
-                }
-
-                @Override
-                public void onDestroyActionMode(ActionMode mode) {
-                }
-
-            };
-
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                mActionMode = startActionMode(new ActionMode.Callback2() {
-                    @Override
-                    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                        return callback.onCreateActionMode(mode, menu);
-                    }
-
-                    @Override
-                    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                        return false;
-                    }
-
-                    @Override
-                    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
-                        return callback.onActionItemClicked(mode, item);
-                    }
-
-                    @Override
-                    public void onDestroyActionMode(ActionMode mode) {
-                        // Ignore.
-                    }
-
-                    @Override
-                    public void onGetContentRect(ActionMode mode, View view, Rect outRect) {
-                        int x1 = Math.round(mSelX1 * mRenderer.mFontWidth);
-                        int x2 = Math.round(mSelX2 * mRenderer.mFontWidth);
-                        int y1 = Math.round((mSelY1 - mTopRow) * mRenderer.mFontLineSpacing);
-                        int y2 = Math.round((mSelY2 + 1 - mTopRow) * mRenderer.mFontLineSpacing);
-                        outRect.set(Math.min(x1, x2), y1, Math.max(x1, x2), y2);
-                    }
-                }, ActionMode.TYPE_FLOATING);
-            } else {
-                mActionMode = startActionMode(callback);
-            }
-
-
-            invalidate();
-        } else {
-            mActionMode.finish();
-            mSelX1 = mSelY1 = mSelX2 = mSelY2 = -1;
-            invalidate();
-        }
-    }
-
-    public TerminalSession getCurrentSession() {
-        return mTermSession;
-    }
-
-}

app/src/main/res/drawable/current_session.xml

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
     <solid android:color="#E0E0E0" />
-</shape>
+</shape>

app/src/main/res/drawable/current_session_black.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
+    <solid android:color="#212325" />
+</shape>

app/src/main/res/drawable/ic_foreground.xml

@@ -0,0 +1,28 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="108dp"
+    android:width="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <!-- Keep in sync with non-adaptive ic_launcher.xml -->
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M34,38
+                          h6
+                          l12,16
+                          l-12,16
+                          h-6
+                          l12,-16
+                          "
+        />
+
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M56,66
+                          h18
+                          v4
+                          h-18
+                          "
+        />
+
+</vector>

app/src/main/res/drawable/ic_new_session.xml

@@ -0,0 +1,17 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+
+    <path
+        android:fillColor="#FFF"
+        android:pathData="M 12, 12
+                          m -10.5, 0
+                          a 10.5,10.5 0 1,0 21,0
+                          a 10.5,10.5 0 1,0 -21,0"/>
+
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM17,13h-4v4h-2v-4L7,13v-2h4L11,7h2v4h4v2z"/>
+</vector>

app/src/main/res/drawable/ic_service_notification.xml

@@ -0,0 +1,24 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <!--
+        Updated notification icon compliant with system icons guidelines
+        https://material.io/design/iconography/system-icons.html
+    -->
+
+    <group>
+        <clip-path
+            android:pathData="M0,0h24v24h-24z"/>
+
+        <path
+            android:pathData="M5,4H2L8,12L2,20H5L11,12L5,4Z"
+            android:fillColor="#ffffff"/>
+
+        <path
+            android:pathData="M13,18H22V20H13V18Z"
+            android:fillColor="#ffffff"/>
+
+    </group>
+</vector>

app/src/main/res/drawable/ic_settings.xml

@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FF000000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.8,11.69 4.8,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

app/src/main/res/drawable/session_background_black_selected.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_activated="true" android:drawable="@drawable/current_session_black"/>
+    <item android:state_activated="false" android:drawable="@drawable/session_ripple_black"/>
+</selector>

app/src/main/res/drawable/session_ripple.xml

@@ -4,4 +4,4 @@
     <item>
         <color android:color="@android:color/white" />
     </item>
-</ripple>
+</ripple>

app/src/main/res/drawable/session_ripple_black.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="@android:color/darker_gray" >
+    <item>
+        <color android:color="@android:color/background_dark" />
+    </item>
+</ripple>

app/src/main/res/drawable/text_select_handle_left_material.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-        android:src="@drawable/text_select_handle_left_mtrl_alpha"
-        android:tint="#2196F3" />

app/src/main/res/drawable/text_select_handle_right_material.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<bitmap xmlns:android="http://schemas.android.com/apk/res/android"
-        android:src="@drawable/text_select_handle_right_mtrl_alpha"
-        android:tint="#2196F3" />

app/src/main/res/layout/activity_settings.xml

@@ -0,0 +1,9 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:id="@+id/settings"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</LinearLayout>

app/src/main/res/layout/activity_termux.xml

@@ -0,0 +1,110 @@
+<com.termux.app.terminal.TermuxActivityRootView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/activity_termux_root_view"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:fitsSystemWindows="true">
+
+    <RelativeLayout
+        android:id="@+id/activity_termux_root_relative_layout"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:layout_marginHorizontal="3dp"
+        android:layout_marginVertical="0dp"
+        android:orientation="vertical">
+
+        <androidx.drawerlayout.widget.DrawerLayout
+            android:id="@+id/drawer_layout"
+            android:layout_width="match_parent"
+            android:layout_alignParentTop="true"
+            android:layout_above="@+id/terminal_toolbar_view_pager"
+            android:layout_height="match_parent">
+
+            <com.termux.view.TerminalView
+                android:id="@+id/terminal_view"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:focusableInTouchMode="true"
+                android:scrollbarThumbVertical="@drawable/terminal_scroll_shape"
+                android:scrollbars="vertical"
+                android:importantForAutofill="no"
+                android:autofillHints="password" />
+
+            <LinearLayout
+                android:id="@+id/left_drawer"
+                android:layout_width="240dp"
+                android:layout_height="match_parent"
+                android:layout_gravity="start"
+                android:background="@android:color/white"
+                android:choiceMode="singleChoice"
+                android:divider="@android:color/transparent"
+                android:dividerHeight="0dp"
+                android:descendantFocusability="blocksDescendants"
+                android:orientation="vertical">
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+                    <ImageButton
+                        android:id="@+id/settings_button"
+                        android:layout_width="40dp"
+                        android:layout_height="40dp"
+                        android:src="@drawable/ic_settings"
+                        android:background="@null"
+                        android:contentDescription="@string/action_open_settings" />
+                </LinearLayout>
+
+                <ListView
+                    android:id="@+id/terminal_sessions_list"
+                    android:layout_width="match_parent"
+                    android:layout_height="0dp"
+                    android:layout_gravity="top"
+                    android:layout_weight="1"
+                    android:choiceMode="singleChoice"
+                    android:longClickable="true" />
+
+                <LinearLayout
+                    style="?android:attr/buttonBarStyle"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+
+                    <Button
+                        android:id="@+id/toggle_keyboard_button"
+                        style="?android:attr/buttonBarButtonStyle"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@string/action_toggle_soft_keyboard" />
+
+                    <Button
+                        android:id="@+id/new_session_button"
+                        style="?android:attr/buttonBarButtonStyle"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@string/action_new_session" />
+                </LinearLayout>
+            </LinearLayout>
+
+        </androidx.drawerlayout.widget.DrawerLayout>
+
+        <androidx.viewpager.widget.ViewPager
+            android:id="@+id/terminal_toolbar_view_pager"
+            android:visibility="gone"
+            android:layout_width="match_parent"
+            android:layout_height="37.5dp"
+            android:background="@android:drawable/screen_background_dark_transparent"
+            android:layout_alignParentBottom="true" />
+
+    </RelativeLayout>
+
+    <View
+        android:id="@+id/activity_termux_bottom_space_view"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="@android:color/transparent" />
+
+</com.termux.app.terminal.TermuxActivityRootView>

app/src/main/res/layout/drawer_layout.xml

@@ -1,75 +0,0 @@
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical">
-
-    <android.support.v4.widget.DrawerLayout
-        android:id="@+id/drawer_layout"
-        android:layout_width="match_parent"
-        android:layout_alignParentTop="true"
-        android:layout_above="@+id/viewpager"
-        android:layout_height="match_parent">
-
-        <com.termux.view.TerminalView
-            android:id="@+id/terminal_view"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:focusableInTouchMode="true"
-            android:scrollbarThumbVertical="@drawable/terminal_scroll_shape"
-            android:scrollbars="vertical" />
-
-        <LinearLayout
-            android:id="@+id/left_drawer"
-            android:layout_width="240dp"
-            android:layout_height="match_parent"
-            android:layout_gravity="start"
-            android:background="@android:color/white"
-            android:choiceMode="singleChoice"
-            android:divider="@android:color/transparent"
-            android:dividerHeight="0dp"
-            android:descendantFocusability="blocksDescendants"
-            android:orientation="vertical">
-
-            <ListView
-                android:id="@+id/left_drawer_list"
-                android:layout_width="match_parent"
-                android:layout_height="0dp"
-                android:layout_gravity="top"
-                android:layout_weight="1"
-                android:choiceMode="singleChoice"
-                android:longClickable="true" />
-
-            <LinearLayout
-                style="?android:attr/buttonBarStyle"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:orientation="horizontal">
-
-                <Button
-                    android:id="@+id/toggle_keyboard_button"
-                    style="?android:attr/buttonBarButtonStyle"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:text="@string/toggle_soft_keyboard" />
-
-                <Button
-                    android:id="@+id/new_session_button"
-                    style="?android:attr/buttonBarButtonStyle"
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_weight="1"
-                    android:text="@string/new_session" />
-            </LinearLayout>
-        </LinearLayout>
-
-    </android.support.v4.widget.DrawerLayout>
-
-    <android.support.v4.view.ViewPager
-        android:id="@+id/viewpager"
-        android:visibility="gone"
-        android:layout_width="match_parent"
-        android:layout_height="40dp"
-        android:background="@android:drawable/screen_background_dark_transparent"
-        android:layout_alignParentBottom="true" />
-</RelativeLayout>