Bump version to 0.34

As we have a document provider now we can remove ACTION_GET_CONTENT.

"The ACTION_OPEN_DOCUMENT intent is only available on devices running
Android 4.4 and higher. If you want your application to support
ACTION_GET_CONTENT to accommodate devices that are running Android 4.3
and lower, you should disable the ACTION_GET_CONTENT intent filter in
your manifest for devices running Android 4.4 or higher. A document
provider and ACTION_GET_CONTENT should be considered mutually exclusive.
If you support both of them simultaneously, your app will appear twice
in the system picker UI, offering two different ways of accessing your
stored data. This would be confusing for users."

- http://developer.android.com/guide/topics/providers/document-provider.html#43

.editorconfig

@@ -12,3 +12,5 @@ root = true
 end_of_line = lf
 insert_final_newline = true
 charset = utf-8
+indent_style = space
+indent_size = 4

.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>Namespace:</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>xmlns:.*</NAME>
-                      <XML_NAMESPACE>Namespace:</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <order>BY_NAME</order>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:id</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:name</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>name</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>style</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*</NAME>
-                      <XML_NAMESPACE>^$</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                  <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>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_height</NAME>
-                      <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
-                    </AND>
-                  </match>
-                </rule>
-              </section>
-              <section>
-                <rule>
-                  <match>
-                    <AND>
-                      <NAME>.*:layout_.*</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>.*: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="TermuxCodeStyle" />
-  </component>
-</project>

.idea/gradle.xml

@@ -3,16 +3,20 @@
   <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="gradleJvm" value="1.8" />
         <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>

.idea/inspectionProfiles/Project_Default.xml

@@ -1,15 +0,0 @@
-<component name="InspectionProjectProfileManager">
-  <profile version="1.0">
-    <option name="myName" value="Project Default" />
-    <inspection_tool class="AndroidLintGoogleAppIndexingWarning" enabled="false" level="WARNING" enabled_by_default="false" />
-    <inspection_tool class="EmptyStatementBody" enabled="true" level="WARNING" enabled_by_default="true">
-      <option name="m_reportEmptyBlocks" value="true" />
-      <option name="commentsAreContent" value="true" />
-    </inspection_tool>
-    <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>
-  </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>

app/build.gradle

@@ -5,7 +5,7 @@ android {
     buildToolsVersion "23.0.2"
 
     dependencies {
-        compile 'com.android.support:support-annotations:23.1.1'
+        compile 'com.android.support:support-annotations:23.3.0'
     }
 
     sourceSets {
@@ -18,8 +18,8 @@ android {
         applicationId "com.termux"
         minSdkVersion 21
         targetSdkVersion 23
-        versionCode 30
-        versionName "0.30"
+        versionCode 34
+        versionName "0.34"
     }
 
     buildTypes {

app/src/main/AndroidManifest.xml

@@ -44,29 +44,45 @@
             android:label="@string/application_name" />
 
         <activity
-            android:name="com.termux.filepicker.TermuxFilePickerActivity"
+            android:name="com.termux.filepicker.TermuxFileReceiverActivity"
             android:label="@string/application_name"
-            android:theme="@android:style/Theme.Material.Light.DarkActionBar"
+            android:taskAffinity="com.termux.filereceiver"
+            android:excludeFromRecents="true"
             android:noHistory="true">
+            <!-- Accept multiple file types when sending. -->
             <intent-filter>
-                <!--
-                  http://stackoverflow.com/questions/6486716/using-intent-action-pick-for-specific-path
-                  "That said, you should consider ACTION_PICK deprecated. The modern action is ACTION_GET_CONTENT
-                  which is much better supported; you will find support of ACTION_PICK spotty and inconsistent.
-                  Unfortunately ACTION_GET_CONTENT also does not let you specify a directory."
-                -->
-                <action android:name="android.intent.action.GET_CONTENT" />
+                <action android:name="android.intent.action.SEND"/>
                 <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.OPENABLE" />
-                <data android:mimeType="*/*" />
+                <data android:mimeType="application/*" />
+                <data android:mimeType="audio/*" />
+                <data android:mimeType="image/*" />
+                <data android:mimeType="message/*" />
+                <data android:mimeType="multipart/*" />
+                <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"/>
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/*" />
+                <data android:mimeType="application/json" />
+                <data android:mimeType="application/*xml*" />
+                <data android:mimeType="application/*latex*" />
+                <data android:mimeType="application/javascript" />
             </intent-filter>
         </activity>
 
-        <provider android:authorities="com.termux.filepicker.provider"
-            android:readPermission="com.termux.filepickder.READ"
-            android:exported="true"
+        <provider
+            android:name=".filepicker.TermuxDocumentsProvider"
+            android:authorities="com.termux.documents"
             android:grantUriPermissions="true"
-            android:name="com.termux.filepicker.TermuxFilePickerProvider" />
+            android:exported="true"
+            android:permission="android.permission.MANAGE_DOCUMENTS">
+            <intent-filter>
+                <action android:name="android.content.action.DOCUMENTS_PROVIDER" />
+            </intent-filter>
+        </provider>
 
         <service
             android:name="com.termux.app.TermuxService"

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

@@ -3,24 +3,25 @@ package com.termux.app;
 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.DialogInterface;
-import android.content.res.Configuration;
 import android.text.Selection;
 import android.util.TypedValue;
 import android.view.KeyEvent;
 import android.view.ViewGroup.LayoutParams;
-import android.view.WindowManager;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
-final class DialogUtils {
+public final class DialogUtils {
 
 	public interface TextSetListener {
 		void onTextSet(String text);
 	}
 
-	static void textInput(Activity activity, int titleText, int positiveButtonText, String initialText, final TextSetListener onPositive,
-										 int neutralButtonText, final TextSetListener onNeutral) {
+	public static void textInput(Activity activity, int titleText, String initialText,
+                                 int positiveButtonText, final TextSetListener onPositive,
+                                 int neutralButtonText, final TextSetListener onNeutral,
+                                 int negativeButtonText, final TextSetListener onNegative,
+                                 final DialogInterface.OnDismissListener onDismiss) {
 		final EditText input = new EditText(activity);
 		input.setSingleLine();
 		if (initialText != null) {
@@ -57,23 +58,32 @@ final class DialogUtils {
 					public void onClick(DialogInterface d, int whichButton) {
 						onPositive.onTextSet(input.getText().toString());
 				}
-			})
-				.setNegativeButton(android.R.string.cancel, null);
-
-		if (onNeutral != null) {
-			builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
-				@Override
-				public void onClick(DialogInterface dialog, int which) {
-					onNeutral.onTextSet(input.getText().toString());
-				}
 			});
-		}
+
+        if (onNeutral != null) {
+            builder.setNeutralButton(neutralButtonText, new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialog, int which) {
+                    onNeutral.onTextSet(input.getText().toString());
+                }
+            });
+        }
+
+        if (onNegative == null) {
+            builder.setNegativeButton(android.R.string.cancel, null);
+        } else {
+            builder.setNegativeButton(negativeButtonText, new DialogInterface.OnClickListener() {
+                @Override
+                public void onClick(DialogInterface dialog, int which) {
+                    onNegative.onTextSet(input.getText().toString());
+                }
+            });
+        }
+
+        if (onDismiss != null) builder.setOnDismissListener(onDismiss);
 
 		dialogHolder[0] = builder.create();
-		if ((activity.getResources().getConfiguration().hardKeyboardHidden & Configuration.HARDKEYBOARDHIDDEN_YES) == 0) {
-			// Show soft keyboard unless hardware keyboard available.
-			dialogHolder[0].getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
-		}
+        dialogHolder[0].setCanceledOnTouchOutside(false);
 		dialogHolder[0].show();
 	}
 

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

@@ -17,7 +17,6 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
-import android.content.res.Resources;
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.Typeface;
@@ -287,28 +286,27 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 			}
 		});
 
-		newSessionButton.setOnLongClickListener(new OnLongClickListener() {
-			@Override
-			public boolean onLongClick(View v) {
-				Resources res = getResources();
-				DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, R.string.session_new_named_positive_button, null,
-					new DialogUtils.TextSetListener() {
-						@Override
-						public void onTextSet(String text) {
-							addNewSession(false, text);
-						}
-					}, R.string.new_session_failsafe, new DialogUtils.TextSetListener() {
-						@Override
-						public void onTextSet(String text) {
-							addNewSession(true, text);
-						}
-					}
-				);
-				return true;
-			}
-		});
+        newSessionButton.setOnLongClickListener(new OnLongClickListener() {
+            @Override
+            public boolean onLongClick(View v) {
+                DialogUtils.textInput(TermuxActivity.this, R.string.session_new_named_title, null, R.string.session_new_named_positive_button,
+                        new DialogUtils.TextSetListener() {
+                            @Override
+                            public void onTextSet(String text) {
+                                addNewSession(false, text);
+                            }
+                        }, R.string.new_session_failsafe, new DialogUtils.TextSetListener() {
+                            @Override
+                            public void onTextSet(String text) {
+                                addNewSession(true, text);
+                            }
+                        }
+                        , -1, null, null);
+                return true;
+            }
+        });
 
-		findViewById(R.id.toggle_keyboard_button).setOnClickListener(new OnClickListener() {
+        findViewById(R.id.toggle_keyboard_button).setOnClickListener(new OnClickListener() {
 			@Override
 			public void onClick(View v) {
 				InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
@@ -391,6 +389,9 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 						case TermuxPreferences.BELL_VIBRATE:
 							((Vibrator) getSystemService(VIBRATOR_SERVICE)).vibrate(50);
 							break;
+                        case TermuxPreferences.BELL_IGNORE:
+                            // Ignore the bell character.
+                            break;
 					}
 
 				}
@@ -492,14 +493,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 
 	@SuppressLint("InflateParams")
 	void renameSession(final TerminalSession sessionToRename) {
-		DialogUtils.textInput(this, R.string.session_rename_title, R.string.session_rename_positive_button, sessionToRename.mSessionName,
-				new DialogUtils.TextSetListener() {
-					@Override
-					public void onTextSet(String text) {
-						sessionToRename.mSessionName = text;
-					}
-				}, -1, null);
-	}
+        DialogUtils.textInput(this, R.string.session_rename_title, sessionToRename.mSessionName, R.string.session_rename_positive_button, new DialogUtils.TextSetListener() {
+            @Override
+            public void onTextSet(String text) {
+                sessionToRename.mSessionName = text;
+            }
+        }, -1, null, -1, null, null);
+    }
 
 	@Override
 	public void onServiceDisconnected(ComponentName name) {
@@ -680,7 +680,13 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 					public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
 						dialog.dismiss();
 						String url = (String) urls[position];
-						startActivity(Intent.createChooser(new Intent(Intent.ACTION_VIEW, Uri.parse(url)), null));
+                        Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
+                        try {
+                            startActivity(i, null);
+                        } catch (ActivityNotFoundException e) {
+                            // If no applications match, Android displays a system message.
+                            startActivity(Intent.createChooser(i, null));
+                        }
 						return true;
 					}
 				});
@@ -731,21 +737,23 @@ public final class TermuxActivity extends Activity implements ServiceConnection
 				}
 				return true;
 			}
-			case CONTEXTMENU_STYLING_ID: {
-				Intent stylingIntent = new Intent();
-				stylingIntent.setClassName("com.termux.styling", "com.termux.styling.TermuxStyleActivity");
-				try {
-					startActivity(stylingIntent);
-				} catch (ActivityNotFoundException e) {
-					new AlertDialog.Builder(this).setMessage(R.string.styling_not_installed)
-							.setPositiveButton(R.string.styling_install, new android.content.DialogInterface.OnClickListener() {
-								@Override
-								public void onClick(DialogInterface dialog, int which) {
-									startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.termux.styling")));
-								}
-							}).setNegativeButton(android.R.string.cancel, null).show();
-				}
-			}
+            case CONTEXTMENU_STYLING_ID: {
+                Intent stylingIntent = new Intent();
+                stylingIntent.setClassName("com.termux.styling", "com.termux.styling.TermuxStyleActivity");
+                try {
+                    startActivity(stylingIntent);
+                } catch (ActivityNotFoundException | IllegalArgumentException e) {
+                    // The startActivity() call is not documented to throw IllegalArgumentException.
+                    // However, crash reporting shows that it sometimes does, so catch it here.
+                    new AlertDialog.Builder(this).setMessage(R.string.styling_not_installed)
+                        .setPositiveButton(R.string.styling_install, new android.content.DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("http://play.google.com/store/apps/details?id=com.termux.styling")));
+                            }
+                        }).setNegativeButton(android.R.string.cancel, null).show();
+                }
+            }
 			return true;
 			case CONTEXTMENU_TOGGLE_FULLSCREEN_ID:
 				toggleImmersive();

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

@@ -7,6 +7,7 @@ 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.system.Os;
 import android.util.Log;
@@ -23,6 +24,7 @@ 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;
@@ -176,17 +178,28 @@ final class TermuxInstaller {
 		}.start();
 	}
 
-	/** Get bootstrap zip url for this systems cpu architecture. */
-	static URL determineZipUrl() throws MalformedURLException {
-		String arch = System.getProperty("os.arch");
-		if (arch.startsWith("arm") || arch.equals("aarch64")) {
-			// Handle different arm variants such as armv7l:
-			arch = "arm";
-		} else if (arch.startsWith("x86")) { // "x86" on arcwelder, "x86_64" on 64-bit android.
-			arch = "i686";
-		}
-		return new URL("https://termux.net/bootstrap/bootstrap-" + arch + ".zip");
-	}
+    /** 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", "armeabi-v7a"};
+        final String[] termuxArchNames = {"aarch64", "i686", "arm"};
+
+        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;
+            }
+        }
+
+        return new URL("https://termux.net/bootstrap/bootstrap-" + termuxArch + ".zip");
+    }
 
 	/** Delete a folder and all its content or throw. */
 	static void deleteFolder(File fileOrDirectory) {

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

@@ -55,7 +55,11 @@ public final class TermuxService extends Service implements SessionChangedCallba
 	/** Intent action to toggle the wifi lock, {@link #mWifiLock}, which this service may hold. */
 	private static final String ACTION_LOCK_WIFI = "com.termux.service_toggle_wifi_lock";
 	/** Intent action to launch a new terminal session. Executed from TermuxWidgetProvider. */
-	private static final String ACTION_EXECUTE = "com.termux.service_execute";
+	public static final String ACTION_EXECUTE = "com.termux.service_execute";
+
+    public static final String EXTRA_ARGUMENTS = "com.termux.execute.arguments";
+
+    public static final String EXTRA_CURRENT_WORKING_DIRECTORY = "com.termux.execute.cwd";
 
 	/** This service is only bound from inside the same process and never uses IPC. */
 	class LocalBinder extends Binder {
@@ -113,8 +117,8 @@ public final class TermuxService extends Service implements SessionChangedCallba
 		} else if (ACTION_EXECUTE.equals(action)) {
 			Uri executableUri = intent.getData();
 			String executablePath = (executableUri == null ? null : executableUri.getPath());
-			String[] arguments = (executableUri == null ? null : intent.getStringArrayExtra("com.termux.execute.arguments"));
-			String cwd = intent.getStringExtra("com.termux.execute.cwd");
+			String[] arguments = (executableUri == null ? null : intent.getStringArrayExtra(EXTRA_ARGUMENTS));
+			String cwd = intent.getStringExtra(EXTRA_CURRENT_WORKING_DIRECTORY);
 			TerminalSession newSession = createTermSession(executablePath, arguments, cwd, false);
 
 			// Transform executable path to session name, e.g. "/bin/do-something.sh" => "do something.sh".
@@ -237,17 +241,22 @@ public final class TermuxService extends Service implements SessionChangedCallba
 		final String prefixEnv = "PREFIX=" + 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) {
-			env = new String[] { termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv };
+            // Keep the default path so that system binaries can be used in the failsafe session.
+            final String pathEnv = "PATH=" + System.getenv("PATH");
+            env = new String[] { termEnv, homeEnv, prefixEnv, androidRootEnv, androidDataEnv, pathEnv, externalStorageEnv };
 		} else {
 			final String ps1Env = "PS1=$ ";
 			final String ldEnv = "LD_LIBRARY_PATH=" + PREFIX_PATH + "/lib";
 			final String langEnv = "LANG=en_US.UTF-8";
-			final String pathEnv = "PATH=" + PREFIX_PATH + "/bin:" + PREFIX_PATH + "/bin/applets:" + System.getenv("PATH");
+			final String pathEnv = "PATH=" + PREFIX_PATH + "/bin:" + PREFIX_PATH + "/bin/applets";
 			final String pwdEnv = "PWD=" + cwd;
 
-			env = new String[] { termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv };
+			env = new String[] { termEnv, homeEnv, prefixEnv, ps1Env, ldEnv, langEnv, pathEnv, pwdEnv, androidRootEnv, androidDataEnv, externalStorageEnv };
 		}
 
 		String shellName;

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

@@ -0,0 +1,242 @@
+package com.termux.filepicker;
+
+import android.content.res.AssetFileDescriptor;
+import android.database.Cursor;
+import android.database.MatrixCursor;
+import android.graphics.Point;
+import android.os.CancellationSignal;
+import android.os.ParcelFileDescriptor;
+import android.provider.DocumentsContract.Document;
+import android.provider.DocumentsContract.Root;
+import android.provider.DocumentsProvider;
+import android.webkit.MimeTypeMap;
+
+import com.termux.R;
+import com.termux.app.TermuxService;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.LinkedList;
+
+/**
+ * A document provider for the Storage Access Framework which exposes the files in the
+ * $HOME/ folder to other apps.
+ * <p>
+ * Note that this replaces providing an activity matching the ACTION_GET_CONTENT intent:
+ * <p>
+ * "A document provider and ACTION_GET_CONTENT should be considered mutually exclusive. If you
+ * support both of them simultaneously, your app will appear twice in the system picker UI,
+ * offering two different ways of accessing your stored data. This would be confusing for users."
+ * - http://developer.android.com/guide/topics/providers/document-provider.html#43
+ */
+public class TermuxDocumentsProvider extends DocumentsProvider {
+
+    private static final String ALL_MIME_TYPES = "*/*";
+
+    private static final File BASE_DIR = new File(TermuxService.HOME_PATH);
+
+
+    // The default columns to return information about a root if no specific
+    // columns are requested in a query.
+    private static final String[] DEFAULT_ROOT_PROJECTION = new String[]{
+        Root.COLUMN_ROOT_ID,
+        Root.COLUMN_MIME_TYPES,
+        Root.COLUMN_FLAGS,
+        Root.COLUMN_ICON,
+        Root.COLUMN_TITLE,
+        Root.COLUMN_SUMMARY,
+        Root.COLUMN_DOCUMENT_ID,
+        Root.COLUMN_AVAILABLE_BYTES
+    };
+
+    // The default columns to return information about a document if no specific
+    // columns are requested in a query.
+    private static final String[] DEFAULT_DOCUMENT_PROJECTION = new String[]{
+        Document.COLUMN_DOCUMENT_ID,
+        Document.COLUMN_MIME_TYPE,
+        Document.COLUMN_DISPLAY_NAME,
+        Document.COLUMN_LAST_MODIFIED,
+        Document.COLUMN_FLAGS,
+        Document.COLUMN_SIZE
+    };
+
+    @Override
+    public Cursor queryRoots(String[] projection) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_ROOT_PROJECTION);
+        @SuppressWarnings("ConstantConditions") 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_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);
+        return result;
+    }
+
+    @Override
+    public Cursor queryDocument(String documentId, String[] projection) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
+        includeFile(result, documentId, null);
+        return result;
+    }
+
+    @Override
+    public Cursor queryChildDocuments(String parentDocumentId, String[] projection, String sortOrder) throws FileNotFoundException {
+        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);
+            }
+        }
+        return result;
+    }
+
+    @Override
+    public ParcelFileDescriptor openDocument(final String documentId, String mode, CancellationSignal signal) throws FileNotFoundException {
+        final File file = getFileForDocId(documentId);
+        final int accessMode = ParcelFileDescriptor.parseMode(mode);
+        return ParcelFileDescriptor.open(file, accessMode);
+    }
+
+    @Override
+    public AssetFileDescriptor openDocumentThumbnail(String documentId, Point sizeHint, CancellationSignal signal) throws FileNotFoundException {
+        final File file = getFileForDocId(documentId);
+        final ParcelFileDescriptor pfd = ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
+        return new AssetFileDescriptor(pfd, 0, file.length());
+    }
+
+    @Override
+    public boolean onCreate() {
+        return true;
+    }
+
+    @Override
+    public void deleteDocument(String documentId) throws FileNotFoundException {
+        File file = getFileForDocId(documentId);
+        if (!file.delete()) {
+            throw new FileNotFoundException("Failed to delete document with id " + documentId);
+        }
+    }
+
+    @Override
+    public String getDocumentType(String documentId) throws FileNotFoundException {
+        File file = getFileForDocId(documentId);
+        return getMimeType(file);
+    }
+
+    @Override
+    public Cursor querySearchDocuments(String rootId, String query, String[] projection) throws FileNotFoundException {
+        final MatrixCursor result = new MatrixCursor(projection != null ? projection : DEFAULT_DOCUMENT_PROJECTION);
+        final File parent = getFileForDocId(rootId);
+
+        // This example implementation searches file names for the query and doesn't rank search
+        // results, so we can stop as soon as we find a sufficient number of matches.  Other
+        // implementations might rank results and use other data about files, rather than the file
+        // name, to produce a match.
+        final LinkedList<File> pending = new LinkedList<>();
+        pending.add(parent);
+
+        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
+            // through the whole SD card).
+            boolean isInsideHome;
+            try {
+                isInsideHome = file.getCanonicalPath().startsWith(TermuxService.HOME_PATH);
+            } catch (IOException e) {
+                isInsideHome = true;
+            }
+            final boolean isHidden = file.getName().startsWith(".");
+            if (isInsideHome && !isHidden) {
+                if (file.isDirectory()) {
+                    Collections.addAll(pending, file.listFiles());
+                } else {
+                    if (file.getName().toLowerCase().contains(query)) {
+                        includeFile(result, null, file);
+                    }
+                }
+            }
+        }
+
+        return result;
+    }
+
+    /**
+     * 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.
+     * <p>
+     * The reverse of @{link #getFileForDocId}.
+     */
+    private static String getDocIdForFile(File file) {
+        return file.getAbsolutePath();
+    }
+
+    /**
+     * Get the file given a document id (the reverse of {@link #getDocIdForFile(File)}).
+     */
+    private static File getFileForDocId(String docId) throws FileNotFoundException {
+        final File f = new File(docId);
+        if (!f.exists()) throw new FileNotFoundException(f.getAbsolutePath() + " not found");
+        return f;
+    }
+
+    private static String getMimeType(File file) {
+        if (file.isDirectory()) {
+            return Document.MIME_TYPE_DIR;
+        } else {
+            final String name = file.getName();
+            final int lastDot = name.lastIndexOf('.');
+            if (lastDot >= 0) {
+                final String extension = name.substring(lastDot + 1);
+                final String mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
+                if (mime != null) return mime;
+            }
+            return "application/octet-stream";
+        }
+    }
+
+    /**
+     * Add a representation of a file to a cursor.
+     *
+     * @param result the cursor to modify
+     * @param docId  the document ID representing the desired file (may be null if given file)
+     * @param file   the File object representing the desired file (may be null if given docID)
+     */
+    private void includeFile(MatrixCursor result, String docId, File file)
+        throws FileNotFoundException {
+        if (docId == null) {
+            docId = getDocIdForFile(file);
+        } else {
+            file = getFileForDocId(docId);
+        }
+
+        int flags = 0;
+        if (file.isDirectory()) {
+            if (file.isDirectory() && file.canWrite()) flags |= Document.FLAG_DIR_SUPPORTS_CREATE;
+        } else if (file.canWrite()) {
+            flags |= Document.FLAG_SUPPORTS_WRITE | Document.FLAG_SUPPORTS_DELETE;
+        }
+
+        final String displayName = file.getName();
+        final String mimeType = getMimeType(file);
+        if (mimeType.startsWith("image/")) flags |= Document.FLAG_SUPPORTS_THUMBNAIL;
+
+        final MatrixCursor.RowBuilder row = result.newRow();
+        row.add(Document.COLUMN_DOCUMENT_ID, docId);
+        row.add(Document.COLUMN_DISPLAY_NAME, displayName);
+        row.add(Document.COLUMN_SIZE, file.length());
+        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);
+    }
+
+}

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

@@ -1,106 +0,0 @@
-package com.termux.filepicker;
-
-import android.annotation.SuppressLint;
-import android.app.Activity;
-import android.app.ListActivity;
-import android.content.Intent;
-import android.net.Uri;
-import android.os.Bundle;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.ArrayAdapter;
-import android.widget.ListView;
-
-import com.termux.R;
-
-import java.io.File;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-
-/** Activity allowing picking files from the $HOME folder. */
-public class TermuxFilePickerActivity extends ListActivity {
-
-    @SuppressLint("SdCardPath")
-    final String TERMUX_HOME = "/data/data/com.termux/files/home";
-
-    private File mCurrentDirectory;
-    private final List<File> mFiles = new ArrayList<>();
-    private final List<String> mFileNames = new ArrayList<>();
-    private ArrayAdapter mAdapter;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.file_picker);
-
-        mAdapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, mFileNames);
-
-        enterDirectory(new File(TERMUX_HOME));
-        setListAdapter(mAdapter);
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        int id = item.getItemId();
-        if (id == android.R.id.home) {
-            enterDirectory(mCurrentDirectory.getParentFile());
-            return true;
-        } else {
-            return super.onOptionsItemSelected(item);
-        }
-    }
-
-    @Override
-    protected void onListItemClick(ListView l, View v, int position, long id) {
-        super.onListItemClick(l, v, position, id);
-        File requestFile = mFiles.get(position);
-        if (requestFile.isDirectory()) {
-            enterDirectory(requestFile);
-        } else {
-            Uri returnUri = Uri.withAppendedPath(Uri.parse("content://com.termux.filepicker.provider/"), requestFile.getAbsolutePath());
-            Intent returnIntent = new Intent().setData(returnUri);
-            returnIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-            setResult(Activity.RESULT_OK, returnIntent);
-            finish();
-        }
-    }
-
-    void enterDirectory(File directory) {
-        getActionBar().setDisplayHomeAsUpEnabled(!directory.getAbsolutePath().equals(TERMUX_HOME));
-
-        String title = directory.getAbsolutePath() + "/";
-        if (title.startsWith(TERMUX_HOME)) {
-            title = "~" + title.substring(TERMUX_HOME.length(), title.length());
-        }
-        setTitle(title);
-
-        mCurrentDirectory = directory;
-        mFiles.clear();
-        mFileNames.clear();
-        mFiles.addAll(Arrays.asList(mCurrentDirectory.listFiles()));
-
-        Collections.sort(mFiles, new Comparator<File>() {
-            @Override
-            public int compare(File f1, File f2) {
-                final String n1 = f1.getName();
-                final String n2 = f2.getName();
-                // Display dot folders last:
-                if (n1.startsWith(".") && !n2.startsWith(".")) {
-                    return 1;
-                } else if (n2.startsWith(".") && !n1.startsWith(".")) {
-                    return -1;
-                }
-                return n1.compareToIgnoreCase(n2);
-            }
-        });
-
-        for (File file : mFiles) {
-            mFileNames.add(file.getName() + (file.isDirectory() ? "/" : ""));
-        }
-        mAdapter.notifyDataSetChanged();
-    }
-
-}

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

@@ -1,65 +0,0 @@
-package com.termux.filepicker;
-
-
-import android.content.ContentProvider;
-import android.content.ContentValues;
-import android.database.Cursor;
-import android.net.Uri;
-import android.os.ParcelFileDescriptor;
-import android.support.annotation.NonNull;
-import android.webkit.MimeTypeMap;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-
-/** Provider of files content uris picked from {@link com.termux.filepicker.TermuxFilePickerActivity}. */
-public class TermuxFilePickerProvider extends ContentProvider {
-    @Override
-    public boolean onCreate() {
-        return true;
-    }
-
-    @Override
-    public Cursor query(@NonNull Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
-        return null;
-    }
-
-    @Override
-    public String getType(@NonNull Uri uri) {
-		String contentType = null;
-		String path = uri.getPath();
-		int lastDotIndex = path.lastIndexOf('.');
-		String possibleFileExtension = path.substring(lastDotIndex + 1, path.length());
-		if (possibleFileExtension.contains("/")) {
-			// The dot was in the path, so not a file extension.
-		} else {
-			MimeTypeMap mimeTypes = MimeTypeMap.getSingleton();
-			// Lower casing makes it work with e.g. "JPG":
-			contentType = mimeTypes.getMimeTypeFromExtension(possibleFileExtension.toLowerCase());
-		}
-
-		if (contentType == null) contentType = "application/octet-stream";
-		return contentType;
-    }
-
-    @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());
-        return ParcelFileDescriptor.open(file, ParcelFileDescriptor.MODE_READ_ONLY);
-    }
-}

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

@@ -0,0 +1,217 @@
+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.app.TermuxService;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+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";
+
+    /**
+     * If the activity should be finished when the name input dialog is dismissed. This is disabled
+     * before showing an error dialog, since the act of showing the error dialog will cause the
+     * name input dialog to be implicitly dismissed, and we do not want to finish the activity directly
+     * when showing the error dialog.
+     */
+    private boolean mFinishOnDismissNameDialog = true;
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        final Intent intent = getIntent();
+        final String action = intent.getAction();
+        final String type = intent.getType();
+        final String scheme = intent.getScheme();
+
+        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()) {
+                    handleUrlAndFinish(sharedText);
+                } else {
+                    String subject = intent.getStringExtra(Intent.EXTRA_SUBJECT);
+                    if (subject == null) subject = intent.getStringExtra(Intent.EXTRA_TITLE);
+                    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.");
+        }
+    }
+
+    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();
+    }
+
+    void handleContentUri(final Uri uri, String subjectFromIntent) {
+        try {
+            String attachmentFileName = null;
+
+            String[] projection = new String[]{OpenableColumns.DISPLAY_NAME};
+            try (Cursor c = getContentResolver().query(uri, projection, null, null, null)) {
+                if (c != null && c.moveToFirst()) {
+                    final int fileNameColumnId = c.getColumnIndex(OpenableColumns.DISPLAY_NAME);
+                    if (fileNameColumnId >= 0) attachmentFileName = c.getString(fileNameColumnId);
+                }
+            }
+
+            if (attachmentFileName == null) attachmentFileName = subjectFromIntent;
+
+            InputStream in = getContentResolver().openInputStream(uri);
+            promptNameAndSave(in, attachmentFileName);
+        } catch (Exception e) {
+            showErrorDialogAndQuit("Unable to handle shared content:\n\n" + e.getMessage());
+            Log.e("termux", "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;
+
+                    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);
+
+                    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();
+                }
+            },
+            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();
+                }
+            });
+    }
+
+    public File saveStreamWithName(InputStream in, String attachmentFileName) {
+        File receiveDir = new File(TERMUX_RECEIVEDIR);
+        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)) {
+                byte[] buffer = new byte[4096];
+                int readBytes;
+                while ((readBytes = in.read(buffer)) > 0) {
+                    f.write(buffer, 0, readBytes);
+                }
+            }
+            return outFile;
+        } catch (IOException e) {
+            showErrorDialogAndQuit("Error saving file:\n\n" + e);
+            Log.e("termux", "Error saving file", e);
+            return null;
+        }
+    }
+
+    void handleUrlAndFinish(final String url) {
+        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.");
+            return;
+        }
+
+        // Do this for the user if necessary:
+        //noinspection ResultOfMethodCallIgnored
+        urlOpenerProgramFile.setExecutable(true);
+
+        final Uri urlOpenerProgramUri = new Uri.Builder().scheme("file").path(URL_OPENER_PROGRAM).build();
+
+        Intent executeIntent = new Intent(TermuxService.ACTION_EXECUTE, urlOpenerProgramUri);
+        executeIntent.setClass(TermuxFileReceiverActivity.this, TermuxService.class);
+        executeIntent.putExtra(TermuxService.EXTRA_ARGUMENTS, new String[]{url});
+        startService(executeIntent);
+        finish();
+    }
+
+}

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

@@ -127,10 +127,14 @@ public final class TerminalBuffer {
 		mLines[externalToInternalRow(row)].mLineWrap = true;
 	}
 
-	private boolean getLineWrap(int row) {
+	public boolean getLineWrap(int row) {
 		return mLines[externalToInternalRow(row)].mLineWrap;
 	}
 
+    public void clearLineWrap(int row) {
+        mLines[externalToInternalRow(row)].mLineWrap = false;
+    }
+
 	/**
 	 * Resize the screen which this transcript backs. Currently, this only works if the number of columns does not
 	 * change or the rows expand (that is, it only works when shrinking the number of rows).

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

@@ -475,7 +475,16 @@ public final class TerminalEmulator {
 				mSession.onBell();
 			break;
         case 8: // Backspace (BS, ^H).
-            setCursorCol(Math.max(mLeftMargin, mCursorCol - 1));
+            if (mLeftMargin == mCursorCol) {
+                // Jump to previous line if it was auto-wrapped.
+                int previousRow = mCursorRow - 1;
+                if (previousRow >= 0 && mScreen.getLineWrap(previousRow)) {
+                    mScreen.clearLineWrap(previousRow);
+                    setCursorRowCol(previousRow, mRightMargin - 1);
+                }
+            } else {
+                setCursorCol(mCursorCol - 1);
+            }
             break;
         case 9: // Horizontal tab (HT, \t) - move to next tab stop, but not past edge of screen
 		    // XXX: Should perhaps use color if writing to new cells. Try with

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

@@ -90,7 +90,7 @@ public final class TerminalSession extends TerminalOutput {
 
 	/**
 	 * The file descriptor referencing the master half of a pseudo-terminal pair, resulting from calling
-	 * {@link JNI#createSubprocess(String, String, String[], String[], int[])}.
+	 * {@link JNI#createSubprocess(String, String, String[], String[], int[], int, int)}.
 	 */
 	private int mTerminalFileDescriptor;
 

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

@@ -652,52 +652,55 @@ public final class TerminalView extends View {
 				resultingKeyCode = KeyEvent.KEYCODE_F12;
 			}
 		} else if (mVirtualFnKeyDown) {
-			if (codePoint == 'w' || codePoint == 'W') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_UP;
-			} else if (codePoint == 'a' || codePoint == 'A') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_LEFT;
-			} else if (codePoint == 's' || codePoint == 'S') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_DOWN;
-			} else if (codePoint == 'd' || codePoint == 'D') {
-				resultingKeyCode = KeyEvent.KEYCODE_DPAD_RIGHT;
-			} else if (codePoint == 'p' || codePoint == 'P') {
-				resultingKeyCode = KeyEvent.KEYCODE_PAGE_UP;
-			} else if (codePoint == 'n' || codePoint == 'N') {
-				resultingKeyCode = KeyEvent.KEYCODE_PAGE_DOWN;
-			} else if (codePoint == 't' || codePoint == 'T') {
-				resultingKeyCode = KeyEvent.KEYCODE_TAB;
-			} else if (codePoint == 'l' || codePoint == 'L') {
-				codePoint = '|';
-			} else if (codePoint == 'u' || codePoint == 'U') {
-				codePoint = '_';
-			} else if (codePoint == 'e' || codePoint == 'E') {
-				codePoint = 27; // ^[ (Esc)
-			} else if (codePoint == '.') {
-				codePoint = 28; // ^\
-			} else if (codePoint > '0' && codePoint <= '9') {
-				// F1-F9
-				resultingKeyCode = (codePoint - '1') + KeyEvent.KEYCODE_F1;
-			} else if (codePoint == '0') {
-				resultingKeyCode = KeyEvent.KEYCODE_F10;
-			} else if (codePoint == 'i' || codePoint == 'I') {
-				resultingKeyCode = KeyEvent.KEYCODE_INSERT;
-			} else if (codePoint == 'x' || codePoint == 'X') {
-				resultingKeyCode = KeyEvent.KEYCODE_FORWARD_DEL;
-			} else if (codePoint == 'h' || codePoint == 'H') {
-				resultingKeyCode = KeyEvent.KEYCODE_MOVE_HOME;
-			} else if (codePoint == 'f' || codePoint == 'F') {
-				// As left alt+f, jumping forward in readline:
-				codePoint = 'f';
-				leftAltDownFromEvent = true;
-			} else if (codePoint == 'b' || codePoint == 'B') {
-				// As left alt+b, jumping forward in readline:
-				codePoint = 'b';
-				leftAltDownFromEvent = true;
-			} else if (codePoint == 'v' || codePoint == 'V') {
-				codePoint = -1;
-				AudioManager audio = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
-				audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
-			}
+            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': codePoint = '_'; break;
+                case 'l': codePoint = '|'; 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': codePoint = /*Escape*/ 27; break;
+                case '.': codePoint = /*^.*/ 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.
+                    codePoint = lowerCase;
+                    leftAltDownFromEvent = true;
+                    break;
+
+                // Volume control.
+                case 'v':
+                    codePoint = -1;
+                    AudioManager audio = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
+                    audio.adjustSuggestedStreamVolume(AudioManager.ADJUST_SAME, AudioManager.USE_DEFAULT_STREAM_TYPE, AudioManager.FLAG_SHOW_UI);
+                    break;
+            }
 		}
 
 		if (codePoint > -1) {
@@ -779,8 +782,9 @@ public final class TerminalView extends View {
 
 	public void checkForFontAndColors() {
 		try {
-			File fontFile = new File("/data/data/com.termux/files/home/.termux/font.ttf");
-			File colorsFile = new File("/data/data/com.termux/files/home/.termux/colors.properties");
+            // Hard-coded paths since this file is used also in Termux:Float.
+            @SuppressLint("SdCardPath") File fontFile = new File("/data/data/com.termux/files/home/.termux/font.ttf");
+            @SuppressLint("SdCardPath") File colorsFile = new File("/data/data/com.termux/files/home/.termux/colors.properties");
 
 			final Properties props = new Properties();
 			if (colorsFile.isFile()) {
@@ -896,12 +900,16 @@ public final class TerminalView extends View {
 				public boolean onCreateActionMode(ActionMode mode, Menu menu) {
 					final int[] ACTION_MODE_ATTRS = { android.R.attr.actionModeCopyDrawable, android.R.attr.actionModePasteDrawable, };
 					TypedArray styledAttributes = getContext().obtainStyledAttributes(ACTION_MODE_ATTRS);
-					int show = MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT;
+                    try {
+                        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).setIcon(styledAttributes.getResourceId(0, 0)).setShowAsAction(show);
-					menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).setIcon(styledAttributes.getResourceId(1, 0)).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
-					menu.add(Menu.NONE, 3, Menu.NONE, R.string.text_selection_more);
+                        ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+                        menu.add(Menu.NONE, 1, Menu.NONE, R.string.copy_text).setIcon(styledAttributes.getResourceId(0, 0)).setShowAsAction(show);
+                        menu.add(Menu.NONE, 2, Menu.NONE, R.string.paste_text).setIcon(styledAttributes.getResourceId(1, 0)).setEnabled(clipboard.hasPrimaryClip()).setShowAsAction(show);
+                        menu.add(Menu.NONE, 3, Menu.NONE, R.string.text_selection_more);
+                    } finally {
+                        styledAttributes.recycle();
+                    }
 					return true;
 				}
 

app/src/main/jni/Application.mk

@@ -1,4 +1,4 @@
-APP_ABI := armeabi-v7a x86
+APP_ABI := arm64-v8a armeabi-v7a x86
 APP_PLATFORM := android-21
 NDK_TOOLCHAIN_VERSION := 4.9
 APP_CFLAGS := -std=c11 -Wall -Wextra -Os -fno-stack-protector

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

@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:paddingLeft="8dp"
-    android:paddingRight="8dp">
-
-    <ListView android:id="@android:id/list"
-        android:layout_width="match_parent"
-        android:layout_height="0dp"
-        android:layout_weight="1"
-        android:drawSelectorOnTop="false"/>
-
-    <TextView android:id="@android:id/empty"
-        android:gravity="center"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:text="@string/empty_folder"/>
-</LinearLayout>

app/src/main/res/values/strings.xml

@@ -53,6 +53,8 @@
   <string name="notification_action_wakelock">Wake</string>
   <string name="notification_action_wifilock">Wifi</string>
 
-  <string name="empty_folder">Empty folder.</string>
+  <string name="file_received_title">Save file in ~/downloads/</string>
+  <string name="file_received_edit_button">Edit</string>
+  <string name="file_received_open_folder_button">Open folder</string>
 
 </resources>

app/src/test/java/com/termux/terminal/CursorAndScreenTest.java

@@ -218,4 +218,13 @@ public class CursorAndScreenTest extends TerminalTestCase {
 				"              -");
 	}
 
+    public void testBackspaceAcrossWrappedLines() {
+        // Backspace should not go to previous line if not auto-wrapped:
+        withTerminalSized(3, 3).enterString("hi\r\n\b\byou").assertLinesAre("hi ", "you", "   ");
+        // Backspace should go to previous line if auto-wrapped:
+        withTerminalSized(3, 3).enterString("hi y").assertLinesAre("hi ", "y  ", "   ").enterString("\b\b#").assertLinesAre("hi#", "y  ", "   ");
+        // Initial backspace should do nothing:
+        withTerminalSized(3, 3).enterString("\b\b\b\bhi").assertLinesAre("hi ", "   ", "   ");
+    }
+
 }

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.5.0'
+        classpath 'com.android.tools.build:gradle:2.0.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Dec 23 01:44:47 CET 2015
+#Tue Mar 15 00:24:33 CET 2016
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.12-bin.zip