<powerbell>APK 15.11.7 release Publish.

appbase/build.properties

@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Fri Nov 21 03:38:47 GMT 2025
-stageCount=1
+#Fri Nov 21 11:41:04 HKT 2025
+stageCount=2
 libraryProject=libappbase
 baseVersion=15.11
-publishVersion=15.11.0
-buildCount=17
-baseBetaVersion=15.11.1
+publishVersion=15.11.1
+buildCount=0
+baseBetaVersion=15.11.2

libappbase/build.properties

@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Fri Nov 21 03:31:18 GMT 2025
-stageCount=1
+#Fri Nov 21 11:41:04 HKT 2025
+stageCount=2
 libraryProject=libappbase
 baseVersion=15.11
-publishVersion=15.11.0
-buildCount=17
-baseBetaVersion=15.11.1
+publishVersion=15.11.1
+buildCount=0
+baseBetaVersion=15.11.2

powerbell/build.gradle

@@ -39,14 +39,7 @@ android {
         }
     }
 
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-	
-    // 米盟
+	// 米盟 SDK
     packagingOptions {
          doNotStrip "*/*/libmimo_1011.so"
     }
@@ -55,14 +48,15 @@ android {
 dependencies {
 	
 	// 米盟
-	implementation 'com.miui.zeus:mimo-ad-sdk:5.3.+'//请使用最新版sdk
+	api 'com.miui.zeus:mimo-ad-sdk:5.3.+'//请使用最新版sdk
      //注意：以下5个库必须要引入
-    //implementation 'androidx.appcompat:appcompat:1.4.1'
-    implementation 'androidx.recyclerview:recyclerview:1.0.0'
-    implementation 'com.google.code.gson:gson:2.8.5'
-    implementation 'com.github.bumptech.glide:glide:4.9.0'
+    //api 'androidx.appcompat:appcompat:1.4.1'
+    api 'androidx.recyclerview:recyclerview:1.0.0'
+    api 'com.google.code.gson:gson:2.8.5'
+    api 'com.github.bumptech.glide:glide:4.9.0'
     //annotationProcessor 'com.github.bumptech.glide:compiler:4.9.0'
 	
+	
 	 // 应用介绍页类库
     api 'io.github.medyo:android-about-page:2.0.0'
     // SSH
@@ -83,7 +77,7 @@ dependencies {
     //api 'androidx.vectordrawable:vectordrawable-animated:1.1.0'
     //api 'androidx.fragment:fragment:1.1.0'
     
-	implementation 'cc.winboll.studio:libaes:15.11.4'
+	implementation 'cc.winboll.studio:libaes:15.11.6'
     implementation 'cc.winboll.studio:libappbase:15.11.0'
 	
     //api fileTree(dir: 'libs', include: ['*.aar'])

powerbell/build.properties

@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Wed Nov 19 09:09:24 HKT 2025
-stageCount=4
+#Fri Nov 21 21:24:51 HKT 2025
+stageCount=8
 libraryProject=
 baseVersion=15.11
-publishVersion=15.11.3
+publishVersion=15.11.7
 buildCount=0
-baseBetaVersion=15.11.4
+baseBetaVersion=15.11.8

powerbell/proguard-rules.pro

@@ -9,12 +9,135 @@
 
 # Add any project specific keep options here:
 
-# 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 *;
-#}
+# ============================== 基础通用规则 ==============================
+# 保留系统组件
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
 
-## 米盟
+# 保留 WinBoLL 核心包及子类（合并简化规则）
+-keep class cc.winboll.studio.** { *; }
+-keepclassmembers class cc.winboll.studio.** { *; }
+
+# 保留所有类中的 public static final String TAG 字段（便于日志定位）
+-keepclassmembers class * {
+    public static final java.lang.String TAG;
+}
+
+# 保留序列化类（避免Parcelable/Gson解析异常）
+-keep class * implements android.os.Parcelable {
+    public static final android.os.Parcelable$Creator *;
+}
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    private static final java.io.ObjectStreamField[] serialPersistentFields;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}
+
+# 保留 R 文件（避免资源ID混淆）
+-keepclassmembers class **.R$* {
+    public static <fields>;
+}
+
+# 保留 native 方法（避免JNI调用失败）
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+# 保留注解和泛型（避免反射/序列化异常）
+-keepattributes *Annotation*
+-keepattributes Signature
+
+# 屏蔽 Java 8+ 警告（适配 Java 7 语法）
+-dontwarn java.lang.invoke.*
+-dontwarn android.support.v8.renderscript.*
+-dontwarn java.util.function.**
+
+# ============================== 第三方框架专项规则 ==============================
+# OkHttp 4.4.1（米盟广告请求依赖，完善Lambda兼容）
+-keep class okhttp3.** { *; }
+-keep interface okhttp3.** { *; }
+-keep class okhttp3.internal.** { *; }
+-keep class okio.** { *; }
+-dontwarn okhttp3.internal.platform.**
+-dontwarn okio.**
+# ============================== 必要补充规则 ==============================
+# OkHttp 4.4.1 补充规则（Java 7 兼容）
+-keep class okhttp3.internal.concurrent.** { *; }
+-keep class okhttp3.internal.connection.** { *; }
+-dontwarn okhttp3.internal.concurrent.TaskRunner
+-dontwarn okhttp3.internal.connection.RealCall
+
+# Glide 4.9.0（米盟广告图片加载依赖）
+-keep public class * implements com.bumptech.glide.module.GlideModule
+-keep public class * extends com.bumptech.glide.module.AppGlideModule
+-keep public enum com.bumptech.glide.load.ImageHeaderParser$ImageType {
+    **[] $VALUES;
+    public *;
+}
+-keepclassmembers class * implements com.bumptech.glide.module.AppGlideModule {
+    <init>();
+}
+-dontwarn com.bumptech.glide.**
+
+# Gson 2.8.5（米盟广告数据序列化依赖）
+-keep class com.google.gson.** { *; }
+-keep interface com.google.gson.** { *; }
+-keepclassmembers class * {
+    @com.google.gson.annotations.SerializedName <fields>;
+}
+
+# 米盟 SDK（核心广告组件，完整保留避免加载失败）
 -keep class com.miui.zeus.** { *; }
+-keep interface com.miui.zeus.** { *; }
+# 保留米盟日志字段（便于广告加载失败排查）
+-keepclassmembers class com.miui.zeus.mimo.sdk.** {
+    public static final java.lang.String TAG;
+}
+
+# RecyclerView 1.0.0（米盟广告布局渲染依赖）
+-keep class androidx.recyclerview.** { *; }
+-keep interface androidx.recyclerview.** { *; }
+-keepclassmembers class androidx.recyclerview.widget.RecyclerView$Adapter {
+    public *;
+}
+
+# 其他第三方框架（按引入依赖保留，无则可删除）
+# XXPermissions 18.63
+-keep class com.hjq.permissions.** { *; }
+-keep interface com.hjq.permissions.** { *; }
+
+# ZXing 二维码（核心解析组件）
+-keep class com.google.zxing.** { *; }
+-keep class com.journeyapps.zxing.** { *; }
+
+# Jsoup HTML解析
+-keep class org.jsoup.** { *; }
+
+# Pinyin4j 拼音搜索
+-keep class net.sourceforge.pinyin4j.** { *; }
+
+# JSch SSH组件
+-keep class com.jcraft.jsch.** { *; }
+
+# AndroidX 基础组件
+-keep class androidx.appcompat.** { *; }
+-keep interface androidx.appcompat.** { *; }
+
+# ============================== 优化与调试配置 ==============================
+# 优化级别（平衡混淆效果与性能）
+-optimizationpasses 5
+-optimizations !code/simplification/arithmetic,!code/simplification/cast,!field/*,!class/merging/*
+
+# 调试辅助（保留行号便于崩溃定位）
+-verbose
+-dontpreverify
+-dontusemixedcaseclassnames
+-keepattributes SourceFile,LineNumberTable
+

powerbell/src/beta/AndroidManifest.xml

@@ -6,6 +6,19 @@
         tools:replace="android:icon"
         android:icon="@drawable/ic_launcher_beta">
 
+        <activity
+            android:name="cc.winboll.studio.powerbell.MainActivity"
+            android:launchMode="singleTask"
+            android:exported="true">
+        </activity>
+        <activity android:name="cc.winboll.studio.powerbell.unittest.MainUnitTestActivity"
+			android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+		</activity>
+		
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="cc.winboll.studio.powerbell.beta.fileprovider"

powerbell/src/main/AndroidManifest.xml

@@ -1,13 +1,14 @@
 <?xml version='1.0' encoding='utf-8'?>
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
-	xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tools="http://schemas.android.com/tools"
     package="cc.winboll.studio.powerbell">
-	
-    <!-- 通过GPS得到精确位置 -->
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
-    <!-- 通过网络得到粗略位置 -->
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+
+    <!-- 只能在前台获取精确的位置信息 -->
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+
+    <!-- 只有在前台运行时才能获取大致位置信息 -->
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
 
     <!-- 拍摄照片和视频 -->
     <uses-permission android:name="android.permission.CAMERA"/>
@@ -36,22 +37,22 @@
     <!-- BATTERY_STATS -->
     <uses-permission android:name="android.permission.BATTERY_STATS"/>
 
-    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
+    <!-- 计算应用存储空间 -->
+    <uses-permission android:name="android.permission.GET_PACKAGE_SIZE"/>
 
     <uses-feature android:name="android.hardware.camera"/>
 
     <uses-feature android:name="android.hardware.camera.autofocus"/>
 
-	<!-- 1. 基础应用信息读取权限（Android 11 及以下） -->
-	<uses-permission android:name="android.permission.GET_PACKAGE_SIZE" />
+    <uses-permission android:name="android.permission.GET_PACKAGE_SIZE"/>
 
-	<!-- 2. Android 11+ 应用列表读取权限（必须声明，否则无法获取全部应用） -->
-	<uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"
-		tools:ignore="QueryAllPackagesPermission" />
+    <uses-permission
+        android:name="android.permission.QUERY_ALL_PACKAGES"
+        tools:ignore="QueryAllPackagesPermission"/>
 
-	<!-- 3. 可选：若需读取系统应用，添加此权限（部分机型需要） -->
-	<uses-permission android:name="android.permission.ACCESS_PACKAGE_USAGE_STATS"
-		tools:ignore="ProtectedPermissions" />
+    <uses-permission
+        android:name="android.permission.ACCESS_PACKAGE_USAGE_STATS"
+        tools:ignore="ProtectedPermissions"/>
 
     <application
         android:name=".App"
@@ -65,21 +66,6 @@
         android:usesCleartextTraffic="true"
         tools:ignore="GoogleAppIndexingWarning">
 
-        <activity
-            android:name=".MainActivity"
-            android:launchMode="singleTask"
-            android:exported="true">
-
-            <intent-filter>
-
-                <action android:name="android.intent.action.MAIN"/>
-
-                <category android:name="android.intent.category.LAUNCHER"/>
-
-            </intent-filter>
-
-        </activity>
-
         <activity
             android:name="cc.winboll.studio.powerbell.activities.ClearRecordActivity"
             android:parentActivityName="cc.winboll.studio.powerbell.MainActivity"
@@ -152,6 +138,7 @@
 
         <activity android:name="cc.winboll.studio.powerbell.activities.BatteryReportActivity"/>
 
+
     </application>
 
 </manifest>

powerbell/src/main/java/cc/winboll/studio/powerbell/MainActivity.java

@@ -1,11 +1,13 @@
 package cc.winboll.studio.powerbell;
 
+import android.Manifest;
 import android.app.Activity;
 import android.app.Fragment;
 import android.app.FragmentTransaction;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.provider.MediaStore;
 import android.view.KeyEvent;
@@ -13,6 +15,8 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.widget.RelativeLayout;
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
 import cc.winboll.studio.libaes.views.ADsBannerView;
 import cc.winboll.studio.libappbase.LogActivity;
 import cc.winboll.studio.libappbase.LogUtils;
@@ -37,6 +41,8 @@ public class MainActivity extends WinBoLLActivity {
 
     public static final String TAG = "MainActivity";
 
+    private static final int REQUEST_WRITE_STORAGE_PERMISSION = 1001;
+
 //    private static final String PRIVACY_FILE = "privacy_pfs";
 //    private static final String PRIVACY_VALUE = "privacy_value";//0: 拒绝，1：赞同
 //
@@ -81,7 +87,7 @@ public class MainActivity extends WinBoLLActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 		mADsBannerView = findViewById(R.id.adsbanner);
-		
+
 //        mContainer = findViewById(R.id.ads_container);
 //
 //        // 初始化主线程Handler（关键：确保广告操作在主线程执行）
@@ -107,7 +113,7 @@ public class MainActivity extends WinBoLLActivity {
         }
         showFragment(mMainViewFragment);
     }
-
+	
     @Override
     protected void onDestroy() {
         super.onDestroy();
@@ -119,7 +125,7 @@ public class MainActivity extends WinBoLLActivity {
 //        if (mMainHandler != null) {
 //            mMainHandler.removeCallbacksAndMessages(null);
 //        }
-		if(mADsBannerView != null) {
+		if (mADsBannerView != null) {
 			mADsBannerView.releaseAdResources();
 		}
     }
@@ -165,7 +171,7 @@ public class MainActivity extends WinBoLLActivity {
     public static void reloadBackground() {
         // 修复：添加非空校验，避免Activity已销毁时调用
         if (_mMainActivity != null && !_mMainActivity.isFinishing() && !_mMainActivity.isDestroyed()) {
-            _mMainActivity.mMainViewFragment.loadBackground();
+            _mMainActivity.mMainViewFragment.reloadBackground();
         }
     }
 
@@ -194,7 +200,7 @@ public class MainActivity extends WinBoLLActivity {
         super.onResume();
         reloadBackground();
         setBackgroundColor();
-		if(mADsBannerView != null) {
+		if (mADsBannerView != null) {
 			mADsBannerView.resumeADs();
 		}
 

powerbell/src/main/java/cc/winboll/studio/powerbell/activities/AboutActivity.java

@@ -57,7 +57,7 @@ public class AboutActivity extends Activity {
         appInfo.setAppGitOwner("Studio");
         appInfo.setAppGitAPPBranch(szBranchName);
         appInfo.setAppGitAPPSubProjectFolder(szBranchName);
-        appInfo.setAppHomePage("https://discuz.winboll.cc/forum.php?mod=viewthread&tid=1");
+        appInfo.setAppHomePage("https://www.winboll.cc/apks/index.php?project=PowerBell");
         appInfo.setAppAPKName("PowerBell");
         appInfo.setAppAPKFolderName("PowerBell");
         return new AboutView(mContext, appInfo);

powerbell/src/main/java/cc/winboll/studio/powerbell/activities/BackgroundPictureActivity.java

@@ -7,16 +7,16 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
-import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.MediaStore;
+import android.text.TextUtils;
 import android.view.View;
-import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
+import cc.winboll.studio.libaes.dialogs.YesNoAlertDialog;
 import cc.winboll.studio.libaes.views.AToolbar;
 import cc.winboll.studio.libappbase.LogUtils;
 import cc.winboll.studio.libappbase.ToastUtils;
@@ -24,9 +24,11 @@ import cc.winboll.studio.powerbell.App;
 import cc.winboll.studio.powerbell.R;
 import cc.winboll.studio.powerbell.beans.BackgroundPictureBean;
 import cc.winboll.studio.powerbell.dialogs.BackgroundPicturePreviewDialog;
+import cc.winboll.studio.powerbell.dialogs.NetworkBackgroundDialog;
 import cc.winboll.studio.powerbell.utils.BackgroundPictureUtils;
 import cc.winboll.studio.powerbell.utils.FileUtils;
 import cc.winboll.studio.powerbell.utils.UriUtil;
+import cc.winboll.studio.powerbell.views.BackgroundView;
 import java.io.BufferedOutputStream;
 import java.io.File;
 import java.io.FileNotFoundException;
@@ -53,6 +55,10 @@ public class BackgroundPictureActivity extends WinBoLLActivity implements Backgr
     private File mfTempCropPicture;     // 剪裁临时文件
     private File mfRecivedCropPicture;  // 剪裁后的目标文件
 
+	private String preViewFileBackgroundView = "";
+	BackgroundView bvPreviewBackground;
+	boolean isCommitSettings = false;
+
     // 静态变量
     public static String _mszRecivedCropPicture = "RecivedCrop.jpg";
     private static String _mszCommonFileType = "jpeg";
@@ -102,7 +108,7 @@ public class BackgroundPictureActivity extends WinBoLLActivity implements Backgr
         mAToolbar.setNavigationOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View v) {
-                    finish();
+                    finish(); // 点击导航栏返回按钮，触发 finish()
                 }
             });
 
@@ -157,31 +163,36 @@ public class BackgroundPictureActivity extends WinBoLLActivity implements Backgr
      */
     public void updatePreviewBackground() {
         LogUtils.d(TAG, "updatePreviewBackground");
-        ImageView ivPreviewBackground = (ImageView) findViewById(R.id.activitybackgroundpictureImageView1);
+        //ImageView ivPreviewBackground = (ImageView) findViewById(R.id.activitybackgroundpictureImageView1);
+        bvPreviewBackground = (BackgroundView) findViewById(R.id.activitybackgroundpictureBackgroundView1);
         BackgroundPictureUtils utils = BackgroundPictureUtils.getInstance(this);
         utils.loadBackgroundPictureBean();
 
         boolean isUseBackgroundFile = utils.getBackgroundPictureBean().isUseBackgroundFile();
         if (isUseBackgroundFile && mfRecivedCropPicture.exists()) {
-            try {
-                String filePath = utils.getBackgroundDir() + getBackgroundFileName();
-                Drawable drawable = FileUtils.getImageDrawable(filePath);
-                if (drawable != null) {
-                    //drawable.setAlpha(120);
-                    ivPreviewBackground.setImageDrawable(drawable);
-                }
-                //ToastUtils.show("背景图片已更新");
-            } catch (IOException e) {
-                LogUtils.d(TAG, e, Thread.currentThread().getStackTrace());
-                ToastUtils.show("背景图片加载失败");
-            }
+            //try {
+			String filePath = utils.getBackgroundDir() + getBackgroundFileName();
+			preViewFileBackgroundView = filePath;
+			bvPreviewBackground.previewBackgroundImage(preViewFileBackgroundView);
+			/*Drawable drawable = FileUtils.getImageDrawable(filePath);
+			 if (drawable != null) {
+			 //drawable.setAlpha(120);
+			 //bvPreviewBackground.setImageDrawable(drawable);
+			 }*/
+			//ToastUtils.show("背景图片已更新");
+//            } catch (IOException e) {
+//                LogUtils.d(TAG, e, Thread.currentThread().getStackTrace());
+//                ToastUtils.show("背景图片加载失败");
+//            }
         } else {
             ToastUtils.show("未使用背景图片");
-            Drawable drawable = getResources().getDrawable(R.drawable.blank10x10);
-            if (drawable != null) {
-                drawable.setAlpha(120);
-                ivPreviewBackground.setImageDrawable(drawable);
-            }
+			preViewFileBackgroundView = "";
+			bvPreviewBackground.previewBackgroundImage(preViewFileBackgroundView);
+//            Drawable drawable = getResources().getDrawable(R.drawable.blank10x10);
+//            if (drawable != null) {
+//                drawable.setAlpha(120);
+//                bvPreviewBackground.setImageDrawable(drawable);
+//            }
         }
     }
 
@@ -433,13 +444,13 @@ public class BackgroundPictureActivity extends WinBoLLActivity implements Backgr
                     fos.close();
                 } catch (IOException e) {
                     LogUtils.e(TAG, "流关闭异常" + e);
-                }
-            }
-            if (scaledBitmap != null && !scaledBitmap.isRecycled()) {
-                scaledBitmap.recycle();
-            }
-        }
-    }
+				}
+			}
+			if (scaledBitmap != null && !scaledBitmap.isRecycled()) {
+				scaledBitmap.recycle();
+			}
+		}
+	}
 
     /**
      * 缩放Bitmap
@@ -589,5 +600,60 @@ public class BackgroundPictureActivity extends WinBoLLActivity implements Backgr
 		super.onResume();
 		setBackgroundColor();
 	}
+
+	public void onNetworkBackgroundDialog(View view) {
+		// 在需要显示对话框的地方（如网络状态监听回调中）
+		NetworkBackgroundDialog dialog = new NetworkBackgroundDialog(this, new NetworkBackgroundDialog.OnDialogClickListener() {
+				@Override
+				public void onConfirm() {
+					ToastUtils.show("onConfirm");
+					// 处理确认逻辑（如允许后台网络使用）
+					LogUtils.d("MainActivity", "用户允许后台网络使用");
+					// 执行具体业务：如开启后台网络请求服务
+				}
+
+				@Override
+				public void onCancel() {
+					ToastUtils.show("onCancel");
+					// 处理取消逻辑（如禁止后台网络使用）
+					LogUtils.d("MainActivity", "用户禁止后台网络使用");
+					// 执行具体业务：如关闭后台网络请求
+				}
+			});
+
+		// 可选：修改对话框标题和内容（适配自定义场景）
+		dialog.setTitle("网络图片下载对话框");
+		dialog.setContent("是否下载地址中的图片资源，作为应用背景图片？");
+
+		// 显示对话框
+		dialog.show();
+
+	}
+
+    /**
+     * 重写finish方法，确保所有退出场景都触发Toast
+     */
+    @Override
+    public void finish() {
+        if (!isCommitSettings) {
+			YesNoAlertDialog.show(this, "应用背景更改提示：", "是否应用预览图片？", new YesNoAlertDialog.OnDialogResultListener(){
+
+					@Override
+					public void onNo() {
+						isCommitSettings = true;
+						finish();
+					}
+
+					@Override
+					public void onYes() {
+						bvPreviewBackground.saveToBackgroundSources(preViewFileBackgroundView);
+						isCommitSettings = true;
+						finish();
+					}
+				});
+		} else {
+			super.finish();
+		}
+    }
 }
 

powerbell/src/main/java/cc/winboll/studio/powerbell/dialogs/NetworkBackgroundDialog.java

@@ -0,0 +1,291 @@
+package cc.winboll.studio.powerbell.dialogs;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.os.Handler;
+import android.os.Message;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
+import cc.winboll.studio.libappbase.LogUtils;
+import cc.winboll.studio.libappbase.ToastUtils;
+import cc.winboll.studio.powerbell.R;
+import cc.winboll.studio.powerbell.utils.PictureUtils;
+import cc.winboll.studio.powerbell.views.BackgroundView;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/19 20:11
+ * @Describe 网络后台使用提示对话框
+ * 继承 AndroidX AlertDialog，绑定自定义布局 dialog_networkbackground.xml
+ */
+public class NetworkBackgroundDialog extends AlertDialog {
+    public static final String TAG = "NetworkBackgroundDialog";
+    // 消息标识：图片加载成功
+    private static final int MSG_IMAGE_LOAD_SUCCESS = 1001;
+    // 消息标识：图片加载失败
+    private static final int MSG_IMAGE_LOAD_FAILED = 1002;
+
+    // 控件引用
+    private TextView tvTitle;
+    private TextView tvContent;
+    private Button btnCancel;
+    private Button btnConfirm;
+    private Button btnPreview;
+    private EditText etURL;
+    BackgroundView bvBackgroundPreview;
+    Context mContext;
+    // 主线程 Handler，用于接收子线程消息并更新 UI
+    private Handler mUiHandler;
+	String previewFilePath;
+
+    // 按钮点击回调接口（Java7 接口实现）
+    public interface OnDialogClickListener {
+        void onConfirm(); // 确认按钮点击
+        void onCancel();  // 取消按钮点击
+    }
+
+    private OnDialogClickListener listener;
+
+    // Java7 显式构造（必须传入 Context）
+    public NetworkBackgroundDialog(@NonNull Context context) {
+        super(context);
+        initHandler(); // 初始化 Handler
+        initView(); // 初始化布局和控件
+        setDismissListener(); // 设置对话框消失监听
+    }
+
+    // 带回调的构造（便于外部处理点击事件）
+    public NetworkBackgroundDialog(@NonNull Context context, OnDialogClickListener listener) {
+        super(context);
+        this.listener = listener;
+        initHandler(); // 初始化 Handler
+        initView();
+        setDismissListener(); // 设置对话框消失监听
+    }
+
+    /**
+     * 初始化主线程 Handler，用于更新 UI
+     */
+    private void initHandler() {
+        mUiHandler = new Handler() {
+            @Override
+            public void handleMessage(Message msg) {
+                super.handleMessage(msg);
+                // 对话框已消失时，不再处理 UI 消息
+                if (!isShowing()) {
+                    return;
+                }
+                switch (msg.what) {
+                    case MSG_IMAGE_LOAD_SUCCESS:
+                        // 图片加载成功，获取文件路径并设置背景
+                        String filePath = (String) msg.obj;
+                        setBackgroundFromPath(filePath);
+                        break;
+                    case MSG_IMAGE_LOAD_FAILED:
+                        // 图片加载失败，设置默认背景
+                        bvBackgroundPreview.setBackgroundResource(R.drawable.ic_launcher);
+                        ToastUtils.show("图片预览失败，请检查链接");
+                        break;
+                }
+            }
+        };
+    }
+
+    /**
+     * 设置对话框消失监听：移除 Handler 消息，避免内存泄漏
+     */
+    private void setDismissListener() {
+        this.setOnDismissListener(new OnDismissListener() {
+				@Override
+				public void onDismiss(DialogInterface dialog) {
+					// 对话框消失时，移除所有未处理的消息和回调
+					if (mUiHandler != null) {
+						mUiHandler.removeCallbacksAndMessages(null);
+					}
+					LogUtils.d(TAG, "对话框已消失，Handler 消息已清理");
+				}
+			});
+    }
+
+    /**
+     * 初始化布局和控件
+     */
+    private void initView() {
+        mContext = this.getContext();
+        // 加载自定义布局
+        View dialogView = LayoutInflater.from(getContext())
+			.inflate(R.layout.dialog_networkbackground, null);
+        // 设置对话框内容视图
+        setView(dialogView);
+
+        // 绑定控件
+        tvTitle = (TextView) dialogView.findViewById(R.id.tv_dialog_title);
+        tvContent = (TextView) dialogView.findViewById(R.id.tv_dialog_content);
+        btnCancel = (Button) dialogView.findViewById(R.id.btn_cancel);
+        btnConfirm = (Button) dialogView.findViewById(R.id.btn_confirm);
+        btnPreview = (Button) dialogView.findViewById(R.id.btn_preview);
+        etURL = (EditText) dialogView.findViewById(R.id.et_url);
+        bvBackgroundPreview = (BackgroundView) dialogView.findViewById(R.id.bv_background_preview);
+
+        // 设置按钮点击事件
+        setButtonClickListeners();
+    }
+
+    /**
+     * 设置按钮点击监听
+     */
+    private void setButtonClickListeners() {
+        // 取消按钮：关闭对话框 + 回调外部
+        btnCancel.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					LogUtils.d("NetworkBackgroundDialog", "取消按钮点击");
+					dismiss(); // 关闭对话框
+					if (listener != null) {
+						listener.onCancel();
+					}
+				}
+			});
+
+        // 确认按钮：关闭对话框 + 回调外部
+        btnConfirm.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					LogUtils.d("NetworkBackgroundDialog", "确认按钮点击");
+					// 确定预览背景资源
+					bvBackgroundPreview.saveToBackgroundSources(previewFilePath);
+
+					dismiss(); // 关闭对话框
+					if (listener != null) {
+						listener.onConfirm();
+					}
+				}
+			});
+
+        // 图片预览按钮：预览输入框地址图片
+        btnPreview.setOnClickListener(new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					LogUtils.d("NetworkBackgroundDialog", "确认预览点击");
+					downloadImageToAlbumAndPreview();
+					/*String url = etURL.getText().toString().trim();
+					 if (url.isEmpty()) {
+					 ToastUtils.show("请输入图片链接");
+					 return;
+					 }
+					 ImageDownloader.getInstance(mContext).downloadImage(url, mDownloadCallback);*/
+				}
+			});
+    }
+
+    /**
+     * 根据文件路径设置 BackgroundView 背景（主线程调用）
+     * @param filePath 图片文件路径
+     */
+    private void setBackgroundFromPath(String filePath) {
+        FileInputStream fis = null;
+        try {
+            File imageFile = new File(filePath);
+            if (!imageFile.exists()) {
+                LogUtils.e(TAG, "图片文件不存在：" + filePath);
+				ToastUtils.show("Test");
+                //bvBackgroundPreview.setBackgroundResource(R.drawable.ic_launcher);
+                return;
+            }
+
+			// 预览背景
+			previewFilePath = filePath;
+            bvBackgroundPreview.previewBackgroundImage(previewFilePath);
+
+            LogUtils.d(TAG, "图片预览成功：" + filePath);
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            bvBackgroundPreview.setBackgroundResource(R.drawable.ic_launcher);
+            LogUtils.e(TAG, "图片预览失败：" + e.getMessage());
+        } finally {
+            // Java7 手动关闭流，避免资源泄漏
+            if (fis != null) {
+                try {
+                    fis.close();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 对外提供方法：修改对话框标题（灵活适配不同场景）
+     */
+    public void setTitle(String title) {
+        if (tvTitle != null) {
+            tvTitle.setText(title);
+        }
+    }
+
+    /**
+     * 对外提供方法：修改对话框内容（灵活适配不同场景）
+     */
+    public void setContent(String content) {
+        if (tvContent != null) {
+            tvContent.setText(content);
+        }
+    }
+
+    /**
+     * 对外提供方法：设置按钮点击回调（替代带参构造）
+     */
+    public void setOnDialogClickListener(OnDialogClickListener listener) {
+        this.listener = listener;
+    }
+
+    /*ImageDownloader.DownloadCallback mDownloadCallback = new ImageDownloader.DownloadCallback() {
+	 @Override
+	 public void onSuccess(String filePath) {
+	 ToastUtils.show("图片下载成功：" + filePath);
+	 LogUtils.d(TAG, filePath);
+	 // 发送消息到主线程，携带图片路径
+	 Message successMsg = mUiHandler.obtainMessage(MSG_IMAGE_LOAD_SUCCESS, filePath);
+	 mUiHandler.sendMessage(successMsg);
+	 }
+
+	 @Override
+	 public void onFailure(String errorMsg) {
+	 ToastUtils.show("下载失败：" + errorMsg);
+	 LogUtils.e(TAG, errorMsg);
+	 // 发送图片加载失败消息
+	 mUiHandler.sendEmptyMessage(MSG_IMAGE_LOAD_FAILED);
+	 }
+	 };*/
+
+	void downloadImageToAlbumAndPreview() {
+		//String imgUrl = "https://example.com/test.jpg";
+		String imgUrl = etURL.getText().toString();
+		PictureUtils.downloadImageToAlbum(mContext, imgUrl, new PictureUtils.DownloadCallback(){
+				@Override
+				public void onSuccess(String savePath) {
+					ToastUtils.show("下载成功：" + savePath);
+					// 发送消息到主线程，携带图片路径
+					Message successMsg = mUiHandler.obtainMessage(MSG_IMAGE_LOAD_SUCCESS, savePath);
+					mUiHandler.sendMessage(successMsg);
+				}
+
+				@Override
+				public void onFailure(Exception e) {
+					ToastUtils.show("下载失败：" + e.getMessage());
+				}
+			});
+
+	}
+}
+

powerbell/src/main/java/cc/winboll/studio/powerbell/fragments/MainViewFragment.java

@@ -9,7 +9,6 @@ import android.os.Message;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewTreeObserver;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.ImageView;
@@ -20,15 +19,12 @@ import android.widget.TextView;
 import cc.winboll.studio.libappbase.LogUtils;
 import cc.winboll.studio.powerbell.App;
 import cc.winboll.studio.powerbell.R;
-import cc.winboll.studio.powerbell.activities.BackgroundPictureActivity;
-import cc.winboll.studio.powerbell.beans.BackgroundPictureBean;
 import cc.winboll.studio.powerbell.services.ControlCenterService;
 import cc.winboll.studio.powerbell.utils.AppConfigUtils;
-import cc.winboll.studio.powerbell.utils.BackgroundPictureUtils;
 import cc.winboll.studio.powerbell.utils.ServiceUtils;
+import cc.winboll.studio.powerbell.views.BackgroundView;
 import cc.winboll.studio.powerbell.views.BatteryDrawable;
 import cc.winboll.studio.powerbell.views.VerticalSeekBar;
-import java.io.File;
 
 public class MainViewFragment extends Fragment {
 
@@ -72,6 +68,7 @@ public class MainViewFragment extends Fragment {
     TextView mtvUsegeReminderValue;
     CheckBox mcbUsegeReminderValue;
     TextView mtvCurrentValue;
+	BackgroundView bvPreviewBackground;
 
 
     @Override
@@ -79,27 +76,28 @@ public class MainViewFragment extends Fragment {
         mView = inflater.inflate(R.layout.fragment_mainview, container, false);
         _mMainViewFragment = MainViewFragment.this;
         mAppConfigUtils = App.getAppConfigUtils(getActivity());
-        
+
         // 获取指定ID的View实例
-        final View mainImageView = mView.findViewById(R.id.fragmentmainviewImageView1);
+	    bvPreviewBackground = mView.findViewById(R.id.fragmentmainviewBackgroundView1);
+        /*final View mainImageView = mView.findViewById(R.id.fragmentmainviewImageView1);
 
-        // 注册OnGlobalLayoutListener
-        mainImageView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
-                @Override
-                public void onGlobalLayout() {
-                    // 获取宽度和高度
-                    int width = mainImageView.getMeasuredWidth();
-                    int height = mainImageView.getMeasuredHeight();
+		 // 注册OnGlobalLayoutListener
+		 mainImageView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+		 @Override
+		 public void onGlobalLayout() {
+		 // 获取宽度和高度
+		 int width = mainImageView.getMeasuredWidth();
+		 int height = mainImageView.getMeasuredHeight();
 
-                    BackgroundPictureUtils utils = BackgroundPictureUtils.getInstance(getActivity());
-                    BackgroundPictureBean bean = utils.loadBackgroundPictureBean();
-                    bean.setBackgroundWidth(width);
-                    bean.setBackgroundHeight(height);
-                    utils.saveData();
-                    // 移除监听器以避免内存泄漏
-                    mainImageView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
-                }
-            });
+		 BackgroundPictureUtils utils = BackgroundPictureUtils.getInstance(getActivity());
+		 BackgroundPictureBean bean = utils.loadBackgroundPictureBean();
+		 bean.setBackgroundWidth(width);
+		 bean.setBackgroundHeight(height);
+		 utils.saveData();
+		 // 移除监听器以避免内存泄漏
+		 mainImageView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
+		 }
+		 });*/
 
         mDrawableFrame = getActivity().getDrawable(R.drawable.bg_frame);
         mllLeftSeekBar = (LinearLayout) mView.findViewById(R.id.fragmentmainviewLinearLayout1);
@@ -302,22 +300,23 @@ public class MainViewFragment extends Fragment {
         }
     }
 
-    public void loadBackground() {
-        BackgroundPictureBean bean = BackgroundPictureUtils.getInstance(getActivity()).getBackgroundPictureBean();
-        ImageView imageView = mView.findViewById(R.id.fragmentmainviewImageView1);
-        String szBackgroundFilePath = BackgroundPictureUtils.getInstance(getActivity()).getBackgroundDir() + BackgroundPictureActivity.getBackgroundFileName();
-        File fBackgroundFilePath = new File(szBackgroundFilePath);
-        LogUtils.d(TAG, "szBackgroundFilePath : " + szBackgroundFilePath);
-        LogUtils.d(TAG, String.format("fBackgroundFilePath.exists() %s", fBackgroundFilePath.exists()));
-        if (bean.isUseBackgroundFile() && fBackgroundFilePath.exists()) {
-            Drawable drawableBackground = Drawable.createFromPath(szBackgroundFilePath);
-            //drawableBackground.setAlpha(120);
-            imageView.setImageDrawable(drawableBackground);
-        } else {
-            Drawable drawableBackground = getActivity().getDrawable(R.drawable.blank10x10);
-            //drawableBackground.setAlpha(120);
-            imageView.setImageDrawable(drawableBackground);
-        }
+    public void reloadBackground() {
+		bvPreviewBackground.reloadBackgroundImage();
+//        BackgroundPictureBean bean = BackgroundPictureUtils.getInstance(getActivity()).getBackgroundPictureBean();
+//        ImageView imageView = mView.findViewById(R.id.fragmentmainviewImageView1);
+//        String szBackgroundFilePath = BackgroundPictureUtils.getInstance(getActivity()).getBackgroundDir() + BackgroundPictureActivity.getBackgroundFileName();
+//        File fBackgroundFilePath = new File(szBackgroundFilePath);
+//        LogUtils.d(TAG, "szBackgroundFilePath : " + szBackgroundFilePath);
+//        LogUtils.d(TAG, String.format("fBackgroundFilePath.exists() %s", fBackgroundFilePath.exists()));
+//        if (bean.isUseBackgroundFile() && fBackgroundFilePath.exists()) {
+//            Drawable drawableBackground = Drawable.createFromPath(szBackgroundFilePath);
+//            //drawableBackground.setAlpha(120);
+//            imageView.setImageDrawable(drawableBackground);
+//        } else {
+//            Drawable drawableBackground = getActivity().getDrawable(R.drawable.blank10x10);
+//            //drawableBackground.setAlpha(120);
+//            imageView.setImageDrawable(drawableBackground);
+//        }
     }
 
     Handler mHandler = new Handler(){

powerbell/src/main/java/cc/winboll/studio/powerbell/unittest/BackgroundViewTestFragment.java

@@ -0,0 +1,48 @@
+package cc.winboll.studio.powerbell.unittest;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import androidx.fragment.app.Fragment;
+import cc.winboll.studio.libappbase.GlobalApplication;
+import cc.winboll.studio.libappbase.ToastUtils;
+import cc.winboll.studio.powerbell.R;
+import android.widget.Button;
+import cc.winboll.studio.powerbell.MainActivity;
+import android.content.Intent;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/19 18:16
+ * @Describe BackgroundViewTestFragment
+ */
+public class BackgroundViewTestFragment extends Fragment {
+
+    public static final String TAG = "BackgroundViewTestFragment";
+
+	View mainView;
+
+	@Override
+	public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+		//super.onCreateView(inflater, container, savedInstanceState);
+
+		// 非调试状态就结束本线程
+		if (!GlobalApplication.isDebugging()) {
+			Thread.currentThread().destroy();
+		}
+
+		mainView = inflater.inflate(R.layout.fragment_test_backgroundview, container, false);
+		
+		((Button)mainView.findViewById(R.id.btn_main_activity)).setOnClickListener(new View.OnClickListener(){
+
+				@Override
+				public void onClick(View v) {
+					getActivity().startActivity(new Intent(getActivity(), MainActivity.class));
+				}
+			});
+
+		ToastUtils.show(String.format("%s onCreate", TAG));
+		return mainView;
+	}
+}

powerbell/src/main/java/cc/winboll/studio/powerbell/unittest/MainUnitTestActivity.java

@@ -0,0 +1,39 @@
+package cc.winboll.studio.powerbell.unittest;
+
+import android.os.Bundle;
+import android.widget.FrameLayout;
+import androidx.appcompat.app.AppCompatActivity;
+import cc.winboll.studio.libappbase.GlobalApplication;
+import cc.winboll.studio.powerbell.R;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+import android.nfc.tech.TagTechnology;
+import cc.winboll.studio.libappbase.ToastUtils;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/19 18:04
+ * @Describe 单元测试启动主页窗口
+ */
+public class MainUnitTestActivity extends AppCompatActivity {
+
+    public static final String TAG = "MainUnitTestActivity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+		// 非调试状态就退出
+		if (!GlobalApplication.isDebugging()) {
+			finish();
+		}
+        setContentView(R.layout.activity_mainunittest);
+		
+		FragmentManager fragmentManager = getSupportFragmentManager();
+		FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+		fragmentTransaction.add(R.id.activitymainunittestFrameLayout1, new BackgroundViewTestFragment(), BackgroundViewTestFragment.TAG);
+		fragmentTransaction.commit();
+		
+		ToastUtils.show(String.format("%s onCreate", TAG));
+    }
+
+}

powerbell/src/main/java/cc/winboll/studio/powerbell/utils/ImageDownloader.java

@@ -0,0 +1,294 @@
+package cc.winboll.studio.powerbell.utils;
+
+import android.content.Context;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.util.Log;
+import cc.winboll.studio.libappbase.LogUtils;
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/19 20:52
+ * @Describe 图片下载工具类（单例模式）
+ * 功能：下载网络图片到缓存目录、清理过期文件、获取最新下载文件
+ */
+public class ImageDownloader {
+	public static final String TAG = "ImageDownloader";
+	// 单例实例
+	private static ImageDownloader sInstance;
+	// OkHttp 客户端（全局复用，提升性能）
+	private OkHttpClient mOkHttpClient;
+	// 缓存目录：/data/data/应用包名/cache/networkdownload
+	private File mCacheDir;
+	// 过期时间：7天（单位：毫秒），可按需调整
+	private static final long EXPIRE_TIME = 7 * 24 * 3600 * 1000;
+
+	/**
+	 * 私有构造（单例模式禁止外部实例化）
+	 * @param context 上下文（用于获取缓存目录）
+	 */
+	private ImageDownloader(Context context) {
+		// 初始化 OkHttp 客户端（设置超时时间）
+		mOkHttpClient = new OkHttpClient.Builder()
+			.connectTimeout(10, TimeUnit.SECONDS)
+			.readTimeout(15, TimeUnit.SECONDS)
+			.writeTimeout(15, TimeUnit.SECONDS)
+			.build();
+
+		// 初始化缓存目录：networkdownload
+		initCacheDir(context);
+		// 初始化时清理过期文件
+		clearExpiredFiles();
+	}
+
+	/**
+	 * 单例获取方法（线程安全）
+	 * @param context 上下文（建议使用 Application 上下文避免内存泄漏）
+	 * @return 单例实例
+	 */
+	public static synchronized ImageDownloader getInstance(Context context) {
+		if (sInstance == null) {
+			// 使用 Application 上下文，防止 Activity 销毁导致的内存泄漏
+			sInstance = new ImageDownloader(context.getApplicationContext());
+		}
+		return sInstance;
+	}
+
+	/**
+	 * 初始化缓存目录：若不存在则创建
+	 */
+	private void initCacheDir(Context context) {
+		// 获取应用内置缓存目录（无需权限）
+		File cacheRoot = context.getCacheDir();
+		mCacheDir = new File(cacheRoot, "networkdownload");
+
+		// 若目录不存在则创建（包括父目录）
+		if (!mCacheDir.exists()) {
+			boolean isCreated = mCacheDir.mkdirs();
+			if (isCreated) {
+				LogUtils.d("ImageDownloader", "networkdownload 缓存目录创建成功：" + mCacheDir.getAbsolutePath());
+			} else {
+				LogUtils.e("ImageDownloader", "networkdownload 缓存目录创建失败");
+			}
+		} else {
+			LogUtils.d("ImageDownloader", "networkdownload 缓存目录已存在：" + mCacheDir.getAbsolutePath());
+		}
+	}
+
+	/**
+	 * 清理过期文件（最后修改时间超过 EXPIRE_TIME 的文件）
+	 */
+	private void clearExpiredFiles() {
+		if (mCacheDir == null || !mCacheDir.exists()) {
+			return;
+		}
+
+		File[] files = mCacheDir.listFiles();
+		if (files == null || files.length == 0) {
+			LogUtils.d("ImageDownloader", "缓存目录无文件，无需清理");
+			return;
+		}
+
+		long currentTime = System.currentTimeMillis();
+		int deleteCount = 0;
+
+		// 遍历所有文件，删除过期文件
+		for (File file : files) {
+			long lastModifyTime = file.lastModified();
+			if (currentTime - lastModifyTime > EXPIRE_TIME) {
+				if (file.delete()) {
+					deleteCount++;
+					LogUtils.d("ImageDownloader", "删除过期文件：" + file.getName());
+				} else {
+					LogUtils.e("ImageDownloader", "删除过期文件失败：" + file.getName());
+				}
+			}
+		}
+
+		LogUtils.d("ImageDownloader", "过期文件清理完成，共删除 " + deleteCount + " 个文件");
+	}
+
+	/**
+	 * 下载网络图片到缓存目录
+	 * @param imageUrl 图片网络链接
+	 * @param callback 下载结果回调（成功/失败）
+	 */
+	public void downloadImage(final String imageUrl, final DownloadCallback callback) {
+		// 校验参数
+		if (TextUtils.isEmpty(imageUrl)) {
+			if (callback != null) {
+				callback.onFailure("图片链接为空");
+			}
+			return;
+		}
+
+		if (mCacheDir == null || !mCacheDir.exists()) {
+			if (callback != null) {
+				callback.onFailure("缓存目录不存在");
+			}
+			return;
+		}
+
+		// 构建 OkHttp 请求
+		Request request = new Request.Builder()
+			.url(imageUrl)
+			.build();
+
+		// 异步下载（避免阻塞主线程）
+		mOkHttpClient.newCall(request).enqueue(new Callback() {
+				@Override
+				public void onFailure(Call call, IOException e) {
+					// 下载失败，回调主线程
+					if (callback != null) {
+						callback.onFailure("下载失败：" + e.getMessage());
+					}
+					LogUtils.e("ImageDownloader", "图片下载失败：" + e.getMessage());
+				}
+
+				@Override
+				public void onResponse(Call call, Response response) throws IOException {
+					if (!response.isSuccessful()) {
+						// 响应失败（如 404、500）
+						if (callback != null) {
+							callback.onFailure("响应失败：" + response.code());
+						}
+						LogUtils.e("ImageDownloader", "图片响应失败，状态码：" + response.code());
+						return;
+					}
+
+					// 响应成功，写入文件
+					InputStream inputStream = null;
+					FileOutputStream outputStream = null;
+					try {
+						inputStream = response.body().byteStream();
+						// 生成 UUID 唯一文件名（保留原文件后缀）
+						String fileExtension = getFileExtension(imageUrl);
+						String fileName = UUID.randomUUID().toString() + fileExtension;
+						File imageFile = new File(mCacheDir, fileName);
+
+						// 写入文件
+						outputStream = new FileOutputStream(imageFile);
+						byte[] buffer = new byte[1024];
+						int len;
+						while ((len = inputStream.read(buffer)) != -1) {
+							outputStream.write(buffer, 0, len);
+						}
+						outputStream.flush();
+
+						// 下载成功，回调主线程并返回文件路径
+						if (callback != null) {
+							callback.onSuccess(imageFile.getAbsolutePath());
+						}
+						LogUtils.d("ImageDownloader", "图片下载成功：" + imageFile.getAbsolutePath());
+
+					} catch (IOException e) {
+						if (callback != null) {
+							callback.onFailure("文件写入失败：" + e.getMessage());
+						}
+						LogUtils.e("ImageDownloader", "图片写入失败：" + e.getMessage());
+					} finally {
+						// 关闭流（Java7 手动关闭，避免资源泄漏）
+						if (inputStream != null) {
+							try {
+								inputStream.close();
+							} catch (IOException e) {
+								e.printStackTrace();
+							}
+						}
+						if (outputStream != null) {
+							try {
+								outputStream.close();
+							} catch (IOException e) {
+								e.printStackTrace();
+							}
+						}
+						// 关闭响应体
+						if (response.body() != null) {
+							response.body().close();
+						}
+					}
+				}
+			});
+	}
+
+	/**
+	 * 获取 networkdownload 目录中最后下载的文件（按修改时间排序）
+	 * @return 最后下载的文件路径（null 表示无文件）
+	 */
+	public String getLastDownloadedFile() {
+		if (mCacheDir == null || !mCacheDir.exists()) {
+			LogUtils.e("ImageDownloader", "缓存目录不存在");
+			return null;
+		}
+
+		File[] files = mCacheDir.listFiles();
+		if (files == null || files.length == 0) {
+			LogUtils.d("ImageDownloader", "缓存目录无文件");
+			return null;
+		}
+
+		// 按最后修改时间降序排序，取第一个即为最新文件
+		File lastFile = files[0];
+		for (File file : files) {
+			if (file.lastModified() > lastFile.lastModified()) {
+				lastFile = file;
+			}
+		}
+
+		LogUtils.d("ImageDownloader", "最后下载的文件：" + lastFile.getAbsolutePath());
+		return lastFile.getAbsolutePath();
+	}
+
+	/**
+	 * 工具方法：从图片链接中提取文件后缀（如 .png、.jpg）
+	 * @param imageUrl 图片链接
+	 * @return 文件后缀（含点号，若无法提取则返回 .jpg）
+	 */
+	private String getFileExtension(String imageUrl) {
+		if (TextUtils.isEmpty(imageUrl)) {
+			return ".jpg";
+		}
+
+		int lastDotIndex = imageUrl.lastIndexOf(".");
+		int lastSlashIndex = imageUrl.lastIndexOf("/");
+		// 确保后缀在最后一个斜杠之后，且长度合理（1-5 个字符）
+		if (lastDotIndex > lastSlashIndex && lastDotIndex < imageUrl.length() - 1) {
+			String extension = imageUrl.substring(lastDotIndex);
+			if (extension.length() <= 5) {
+				return extension.toLowerCase(); // 统一转为小写
+			}
+		}
+
+		// 无法提取后缀时，默认使用 .jpg
+		return ".jpg";
+	}
+
+	/**
+	 * 下载结果回调接口（Java7 接口实现）
+	 */
+	public interface DownloadCallback {
+		/**
+		 * 下载成功
+		 * @param filePath 图片保存路径
+		 */
+		void onSuccess(String filePath);
+
+		/**
+		 * 下载失败
+		 * @param errorMsg 失败原因
+		 */
+		void onFailure(String errorMsg);
+	}
+}
+

powerbell/src/main/java/cc/winboll/studio/powerbell/utils/PictureUtils.java

@@ -0,0 +1,207 @@
+package cc.winboll.studio.powerbell.utils;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Environment;
+import android.util.Log;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Locale;
+import okhttp3.Call;
+import okhttp3.Callback;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/21 18:55
+ * @Describe
+ * 图片下载工具类（指定目录保存：Pictures/PowerBell/BackgroundHistory）
+ */
+public class PictureUtils {
+    private static final String TAG = "PictureUtils";
+    private static final String ROOT_DIR = "PowerBell/BackgroundHistory"; // 自定义目录结构
+    private static OkHttpClient sOkHttpClient;
+
+    static {
+        sOkHttpClient = new OkHttpClient();
+    }
+
+    /**
+     * 下载网络图片到指定目录（外部存储/Pictures/PowerBell/BackgroundHistory）
+     * @param context 上下文（用于通知相册刷新）
+     * @param imgUrl 图片网络URL
+     * @param callback 下载结果回调（成功/失败）
+     */
+    public static void downloadImageToAlbum(final Context context, final String imgUrl, final DownloadCallback callback) {
+        // 检查参数合法性
+        if (context == null) {
+            if (callback != null) {
+                callback.onFailure(new IllegalArgumentException("Context不能为空"));
+            }
+            return;
+        }
+        if (imgUrl == null || imgUrl.isEmpty()) {
+            if (callback != null) {
+                callback.onFailure(new IllegalArgumentException("图片URL为空"));
+            }
+            return;
+        }
+
+        startDownload(context, imgUrl, callback);
+    }
+
+    /**
+     * 执行实际的下载逻辑
+     */
+    private static void startDownload(final Context context, final String imgUrl, final DownloadCallback callback) {
+        Request request = new Request.Builder().url(imgUrl).build();
+        sOkHttpClient.newCall(request).enqueue(new Callback() {
+				@Override
+				public void onResponse(Call call, Response response) throws IOException {
+					if (!response.isSuccessful()) {
+						if (callback != null) {
+							callback.onFailure(new IOException("请求失败，响应码：" + response.code()));
+						}
+						return;
+					}
+
+					InputStream inputStream = null;
+					FileOutputStream outputStream = null;
+					try {
+						inputStream = response.body().byteStream();
+						// 1. 获取并创建指定保存目录（外部存储/Pictures/PowerBell/BackgroundHistory）
+						File saveDir = getTargetSaveDir(context);
+						if (!saveDir.exists()) {
+							boolean isDirCreated = saveDir.mkdirs(); // 递归创建多级目录
+							if (!isDirCreated) {
+								if (callback != null) {
+									callback.onFailure(new IOException("创建目录失败：" + saveDir.getAbsolutePath()));
+								}
+								return;
+							}
+						}
+
+						// 2. 解析图片后缀
+						String fileSuffix = getImageSuffix(imgUrl, response);
+						// 3. 生成时间戳文件名
+						String fileName = generateTimeFileName() + fileSuffix;
+						// 4. 创建文件
+						final File saveFile = new File(saveDir, fileName);
+
+						// 5. 写入文件
+						outputStream = new FileOutputStream(saveFile);
+						byte[] buffer = new byte[1024 * 4];
+						int len;
+						while ((len = inputStream.read(buffer)) != -1) {
+							outputStream.write(buffer, 0, len);
+						}
+						outputStream.flush();
+
+						// 6. 通知相册刷新（使图片显示在系统相册中）
+						notifyAlbumRefresh(context, saveFile);
+
+						// 成功回调
+						if (callback != null) {
+							callback.onSuccess(saveFile.getAbsolutePath());
+						}
+
+					} catch (Exception e) {
+						Log.e(TAG, "下载图片异常", e);
+						if (callback != null) {
+							callback.onFailure(e);
+						}
+					} finally {
+						// 关闭资源
+						if (inputStream != null) inputStream.close();
+						if (outputStream != null) outputStream.close();
+						if (response.body() != null) response.body().close();
+					}
+				}
+
+				@Override
+				public void onFailure(Call call, final IOException e) {
+					Log.e(TAG, "下载图片失败", e);
+					if (callback != null) {
+						callback.onFailure(e);
+					}
+				}
+			});
+    }
+
+    /**
+     * 获取目标保存目录：外部存储/Pictures/PowerBell/BackgroundHistory
+     */
+    private static File getTargetSaveDir(Context context) {
+        // 优先使用公共Pictures目录（兼容多数设备）
+        File publicPicturesDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
+        if (publicPicturesDir.exists()) {
+            return new File(publicPicturesDir, ROOT_DIR);
+        }
+        // 备选：应用私有Pictures目录（若公共目录不可用）
+        File appPicturesDir = context.getExternalFilesDir(Environment.DIRECTORY_PICTURES);
+        if (appPicturesDir != null) {
+            return new File(appPicturesDir, ROOT_DIR);
+        }
+        // 极端情况：外部存储根目录
+        return new File(Environment.getExternalStorageDirectory(), ROOT_DIR);
+    }
+
+    /**
+     * 解析图片后缀名
+     */
+    private static String getImageSuffix(String imgUrl, Response response) {
+        // 优先从URL解析
+        if (imgUrl.lastIndexOf('.') != -1) {
+            String suffix = imgUrl.substring(imgUrl.lastIndexOf('.'));
+            if (suffix.length() <= 5 && (suffix.contains("png") || suffix.contains("jpg") || suffix.contains("jpeg") || suffix.contains("gif"))) {
+                return suffix.toLowerCase(Locale.getDefault());
+            }
+        }
+        // 从响应头解析
+        String contentType = response.header("Content-Type");
+        if (contentType != null) {
+            if (contentType.contains("png")) return ".png";
+            if (contentType.contains("jpeg") || contentType.contains("jpg")) return ".jpg";
+            if (contentType.contains("gif")) return ".gif";
+        }
+        return ".jpg"; // 默认后缀
+    }
+
+    /**
+     * 生成时间戳文件名
+     */
+    private static String generateTimeFileName() {
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmssSSS", Locale.getDefault());
+        return sdf.format(new Date());
+    }
+
+    /**
+     * 通知相册刷新
+     */
+    private static void notifyAlbumRefresh(Context context, File file) {
+        try {
+            Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
+            Uri uri = Uri.fromFile(file);
+            intent.setData(uri);
+            context.sendBroadcast(intent);
+        } catch (Exception e) {
+            Log.e(TAG, "通知相册刷新失败", e);
+        }
+    }
+
+    /**
+     * 下载结果回调接口
+     */
+    public interface DownloadCallback {
+        void onSuccess(String savePath); // 下载成功（子线程回调）
+        void onFailure(Exception e);    // 下载失败（子线程回调）
+    }
+}
+

powerbell/src/main/java/cc/winboll/studio/powerbell/views/BackgroundView.java

@@ -0,0 +1,374 @@
+package cc.winboll.studio.powerbell.views;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.drawable.BitmapDrawable;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import cc.winboll.studio.libappbase.LogUtils;
+import cc.winboll.studio.powerbell.R;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+
+/**
+ * @Author ZhanGSKen&豆包大模型<zhangsken@qq.com>
+ * @Date 2025/11/19 18:01
+ * @Describe 背景图片视图控件（支持预览临时图片 + 外部刷新）
+ */
+public class BackgroundView extends RelativeLayout {
+
+    public static final String TAG = "BackgroundView";
+
+    Context mContext;
+    private ImageView ivBackground;
+
+    private static String BACKGROUND_IMAGE_FOLDER = "Background";
+    private static String BACKGROUND_IMAGE_FILENAME = "current.data";
+    private static String BACKGROUND_IMAGE_PREVIEW_FILENAME = "current_preview.data";
+    private static String backgroundSourceFilePath;
+    private float imageAspectRatio = 1.0f; // 默认 1:1
+    // 标记当前是否处于预览状态
+    private boolean isPreviewMode = false;
+
+    public BackgroundView(Context context) {
+        super(context);
+        this.mContext = context;
+        initView();
+    }
+
+    public BackgroundView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        this.mContext = context;
+        initView();
+    }
+
+    public BackgroundView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        this.mContext = context;
+        initView();
+    }
+
+    public BackgroundView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        this.mContext = context;
+        initView();
+    }
+
+    void initView() {
+        initBackgroundImageView();
+        initBackgroundImagePath();
+        loadAndSetImageViewBackground();
+    }
+
+    private void initBackgroundImageView() {
+        ivBackground = new ImageView(mContext);
+        RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(
+			LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
+        layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT);
+        ivBackground.setLayoutParams(layoutParams);
+        ivBackground.setScaleType(ImageView.ScaleType.FIT_CENTER);
+        this.addView(ivBackground);
+    }
+
+    private void initBackgroundImagePath() {
+        File externalFilesDir = mContext.getExternalFilesDir(null);
+        if (externalFilesDir == null) {
+            LogUtils.e(TAG, "外置存储不可用，无法初始化背景图片路径");
+            return;
+        }
+
+        File backgroundDir = new File(externalFilesDir, BACKGROUND_IMAGE_FOLDER);
+        if (!backgroundDir.exists()) {
+            backgroundDir.mkdirs();
+        }
+        backgroundSourceFilePath = new File(backgroundDir, BACKGROUND_IMAGE_FILENAME).getAbsolutePath();
+    }
+
+    /**
+     * 拷贝图片文件到背景资源目录（正式背景）
+     */
+    public void saveToBackgroundSources(String srcBackgroundPath) {
+        initBackgroundImagePath();
+        if (backgroundSourceFilePath == null) {
+            LogUtils.e(TAG, "目标路径初始化失败，无法保存背景图片");
+            return;
+        }
+
+        File srcFile = new File(srcBackgroundPath);
+        if (!srcFile.exists() || !srcFile.isFile()) {
+            LogUtils.e(TAG, String.format("源文件不存在或不是文件：%s", srcBackgroundPath));
+            return;
+        }
+
+        File destFile = new File(backgroundSourceFilePath);
+        File destDir = destFile.getParentFile();
+        if (destDir != null && !destDir.exists()) {
+            boolean isDirCreated = destDir.mkdirs();
+            if (!isDirCreated) {
+                LogUtils.e(TAG, "目标目录创建失败：" + destDir.getAbsolutePath());
+                return;
+            }
+        }
+
+        FileInputStream fis = null;
+        FileOutputStream fos = null;
+        try {
+            fis = new FileInputStream(srcFile);
+            fos = new FileOutputStream(destFile);
+
+            byte[] buffer = new byte[4096];
+            int len;
+            while ((len = fis.read(buffer)) != -1) {
+                fos.write(buffer, 0, len);
+            }
+            fos.flush();
+
+            LogUtils.d(TAG, String.format("文件拷贝成功：%s -> %s", srcBackgroundPath, backgroundSourceFilePath));
+            // 拷贝成功后，若处于预览模式则退出预览，加载正式背景
+            if (isPreviewMode) {
+                exitPreviewMode();
+            } else {
+                loadAndSetImageViewBackground();
+            }
+
+        } catch (Exception e) {
+            LogUtils.e(TAG, String.format("文件拷贝失败：%s", e.getMessage()), e);
+            if (destFile.exists()) {
+                destFile.delete();
+                LogUtils.d(TAG, "已删除损坏的目标文件");
+            }
+        } finally {
+            if (fis != null) {
+                try {
+                    fis.close();
+                } catch (Exception e) {
+                    LogUtils.e(TAG, "输入流关闭失败：" + e.getMessage());
+                }
+            }
+            if (fos != null) {
+                try {
+                    fos.close();
+                } catch (Exception e) {
+                    LogUtils.e(TAG, "输出流关闭失败：" + e.getMessage());
+                }
+            }
+        }
+    }
+
+    /**
+     * 【新增公共函数】预览临时图片（不修改正式背景文件）
+     * @param previewImagePath 临时预览图片的路径
+     */
+    public void previewBackgroundImage(String previewImagePath) {
+        if (previewImagePath == null || previewImagePath.isEmpty()) {
+            LogUtils.e(TAG, "预览图片路径为空");
+            return;
+        }
+
+        File previewFile = new File(previewImagePath);
+        if (!previewFile.exists() || !previewFile.isFile()) {
+            LogUtils.e(TAG, "预览图片不存在或不是文件：" + previewImagePath);
+            return;
+        }
+
+        // 计算预览图片宽高比
+        if (!calculateImageAspectRatio(previewFile)) {
+            LogUtils.e(TAG, "预览图片尺寸无效，无法预览");
+            return;
+        }
+
+        // 压缩加载预览图片
+        Bitmap previewBitmap = decodeBitmapWithCompress(previewFile, 1080, 1920);
+        if (previewBitmap == null) {
+            LogUtils.e(TAG, "预览图片加载失败");
+            return;
+        }
+
+        // 设置预览图片到 ImageView
+        Drawable previewDrawable = new BitmapDrawable(mContext.getResources(), previewBitmap);
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
+            ivBackground.setBackground(previewDrawable);
+        } else {
+            ivBackground.setBackgroundDrawable(previewDrawable);
+        }
+
+        // 调整 ImageView 尺寸以匹配预览图片宽高比
+        adjustImageViewSize();
+        isPreviewMode = true;
+        LogUtils.d(TAG, "进入预览模式，预览图片路径：" + previewImagePath);
+    }
+
+    /**
+     * 【新增公共函数】退出预览模式，恢复显示正式背景图片
+     */
+    public void exitPreviewMode() {
+        if (isPreviewMode) {
+            loadAndSetImageViewBackground();
+            isPreviewMode = false;
+            LogUtils.d(TAG, "退出预览模式，恢复正式背景");
+        }
+    }
+
+    /**
+     * 公共函数：供外部类调用，重新加载正式背景图片（刷新显示）
+     */
+    public void reloadBackgroundImage() {
+        LogUtils.d(TAG, "外部调用重新加载背景图片");
+        initBackgroundImagePath();
+        loadAndSetImageViewBackground();
+        // 若处于预览模式，退出预览
+        if (isPreviewMode) {
+            isPreviewMode = false;
+        }
+    }
+
+    /**
+     * 加载正式背景图片并设置到 ImageView
+     */
+    private void loadAndSetImageViewBackground() {
+        if (backgroundSourceFilePath == null) {
+            setDefaultImageViewBackground();
+            return;
+        }
+
+        File backgroundFile = new File(backgroundSourceFilePath);
+        if (!backgroundFile.exists() || !backgroundFile.isFile()) {
+            LogUtils.e(TAG, "背景图片不存在：" + backgroundSourceFilePath);
+            setDefaultImageViewBackground();
+            return;
+        }
+
+        if (!calculateImageAspectRatio(backgroundFile)) {
+            setDefaultImageViewBackground();
+            return;
+        }
+
+        Bitmap bitmap = decodeBitmapWithCompress(backgroundFile, 1080, 1920);
+        if (bitmap == null) {
+            LogUtils.e(TAG, "图片加载失败，无法解析为 Bitmap");
+            setDefaultImageViewBackground();
+            return;
+        }
+
+        Drawable backgroundDrawable = new BitmapDrawable(mContext.getResources(), bitmap);
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
+            ivBackground.setBackground(backgroundDrawable);
+        } else {
+            ivBackground.setBackgroundDrawable(backgroundDrawable);
+        }
+
+        adjustImageViewSize();
+        LogUtils.d(TAG, "ImageView 背景加载成功，宽高比：" + imageAspectRatio);
+    }
+
+    /**
+     * 计算图片宽高比（宽/高）
+     */
+    private boolean calculateImageAspectRatio(File file) {
+        try {
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+
+            int imageWidth = options.outWidth;
+            int imageHeight = options.outHeight;
+
+            if (imageWidth <= 0 || imageHeight <= 0) {
+                LogUtils.e(TAG, "图片尺寸无效：宽=" + imageWidth + ", 高=" + imageHeight);
+                return false;
+            }
+
+            imageAspectRatio = (float) imageWidth / imageHeight;
+            return true;
+        } catch (Exception e) {
+            LogUtils.e(TAG, "计算图片宽高比失败：" + e.getMessage());
+            return false;
+        }
+    }
+
+    /**
+     * 动态调整 ImageView 尺寸以匹配图片宽高比
+     */
+    private void adjustImageViewSize() {
+        int parentWidth = getWidth();
+        int parentHeight = getHeight();
+
+        if (parentWidth == 0 || parentHeight == 0) {
+            post(new Runnable() {
+					@Override
+					public void run() {
+						adjustImageViewSize();
+					}
+				});
+            return;
+        }
+
+        int imageViewWidth, imageViewHeight;
+        if (imageAspectRatio >= 1.0f) { // 横图
+            imageViewWidth = Math.min(parentWidth, (int) (parentHeight * imageAspectRatio));
+            imageViewHeight = (int) (imageViewWidth / imageAspectRatio);
+        } else { // 竖图
+            imageViewHeight = Math.min(parentHeight, (int) (parentWidth / imageAspectRatio));
+            imageViewWidth = (int) (imageViewHeight * imageAspectRatio);
+        }
+
+        RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams) ivBackground.getLayoutParams();
+        layoutParams.width = imageViewWidth;
+        layoutParams.height = imageViewHeight;
+        ivBackground.setLayoutParams(layoutParams);
+    }
+
+    /**
+     * 带压缩的 Bitmap 解码（避免 OOM）
+     */
+    private Bitmap decodeBitmapWithCompress(File file, int maxWidth, int maxHeight) {
+        try {
+            BitmapFactory.Options options = new BitmapFactory.Options();
+            options.inJustDecodeBounds = true;
+            BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+
+            int scaleX = options.outWidth / maxWidth;
+            int scaleY = options.outHeight / maxHeight;
+            int inSampleSize = Math.max(scaleX, scaleY);
+            if (inSampleSize <= 0) {
+                inSampleSize = 1;
+            }
+
+            options.inJustDecodeBounds = false;
+            options.inSampleSize = inSampleSize;
+            options.inPreferredConfig = Bitmap.Config.RGB_565;
+            return BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+        } catch (Exception e) {
+            LogUtils.e(TAG, "图片压缩加载失败：" + e.getMessage());
+            return null;
+        }
+    }
+
+    /**
+     * 设置默认背景（图片加载失败时兜底）
+     */
+    private void setDefaultImageViewBackground() {
+        ivBackground.setBackgroundResource(R.drawable.default_background);
+        imageAspectRatio = 1.0f;
+        adjustImageViewSize();
+        LogUtils.d(TAG, "已设置 ImageView 默认背景");
+    }
+
+    @Override
+    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+        super.onSizeChanged(w, h, oldw, oldh);
+        adjustImageViewSize();
+    }
+
+    /**
+     * 对外提供：判断当前是否处于预览模式
+     */
+    public boolean isPreviewMode() {
+        return isPreviewMode;
+    }
+}
+

powerbell/src/main/res/drawable/default_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#FF009DCB"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

powerbell/src/main/res/layout/activity_backgroundpicture.xml

@@ -21,14 +21,15 @@
 			android:layout_height="match_parent"
 			android:id="@+id/activitybackgroundpictureRelativeLayout1"/>
 
-
-		<ImageView
+		<cc.winboll.studio.powerbell.views.BackgroundView
+			xmlns:app="http://schemas.android.com/apk/res-auto"
+			android:orientation="vertical"
 			android:layout_width="match_parent"
 			android:layout_height="match_parent"
-			android:id="@+id/activitybackgroundpictureImageView1"
-			android:layout_below="@id/toolbar">
+			android:background="#FF7381FF"
+			android:id="@+id/activitybackgroundpictureBackgroundView1">
 
-		</ImageView>
+		</cc.winboll.studio.powerbell.views.BackgroundView>
 
 		<LinearLayout
 			android:orientation="vertical"
@@ -80,6 +81,23 @@
 					android:layout_margin="5dp"
 					android:id="@+id/activitybackgroundpictureAButton2"/>
 
+				<cc.winboll.studio.libaes.views.AButton
+					android:layout_width="50dp"
+					android:layout_height="36dp"
+					android:text="♾"
+					android:layout_gravity="center_vertical"
+					android:layout_margin="5dp"
+					android:id="@+id/activitybackgroundpictureAButton9"
+					android:onClick="onNetworkBackgroundDialog"/>
+
+			</LinearLayout>
+
+			<LinearLayout
+				android:orientation="horizontal"
+				android:layout_width="match_parent"
+				android:layout_height="wrap_content"
+				android:gravity="right">
+
 				<cc.winboll.studio.libaes.views.AButton
 					android:layout_width="50dp"
 					android:layout_height="36dp"
@@ -103,7 +121,7 @@
 					android:layout_gravity="center_vertical"
 					android:layout_margin="5dp"
 					android:id="@+id/activitybackgroundpictureAButton7"/>
-				
+
 				<cc.winboll.studio.libaes.views.AButton
 					android:layout_width="50dp"
 					android:layout_height="36dp"
@@ -111,11 +129,12 @@
 					android:layout_gravity="center_vertical"
 					android:layout_margin="5dp"
 					android:id="@+id/activitybackgroundpictureAButton8"/>
-				
+
 			</LinearLayout>
 
 		</LinearLayout>
 
 	</RelativeLayout>
+
 </LinearLayout>
 

powerbell/src/main/res/layout/activity_mainunittest.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	android:orientation="vertical"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent">
+
+	<FrameLayout
+		android:layout_width="match_parent"
+		android:layout_height="match_parent"
+		android:id="@+id/activitymainunittestFrameLayout1"/>
+
+</LinearLayout>
+

powerbell/src/main/res/layout/dialog_networkbackground.xml

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	android:layout_width="match_parent"
+	android:layout_height="wrap_content"
+	android:layout_margin="16dp"
+	android:orientation="vertical"
+	android:background="@android:color/white"
+	android:padding="20dp"
+	android:radius="12dp">
+
+	<TextView
+		android:id="@+id/tv_dialog_title"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:text="网络后台提示"
+		android:textSize="18sp"
+		android:textColor="@android:color/black"
+		android:textStyle="bold"/>
+
+	<LinearLayout
+		android:orientation="horizontal"
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="12dp">
+
+		<EditText
+			android:layout_width="0dp"
+			android:ems="10"
+			android:layout_height="wrap_content"
+			android:layout_weight="1.0"
+			android:id="@+id/et_url"
+			android:singleLine="true"/>
+
+		<Button
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="↻"
+			android:id="@+id/btn_preview"/>
+
+	</LinearLayout>
+
+	<LinearLayout
+		android:orientation="horizontal"
+		android:layout_width="match_parent"
+		android:layout_height="100dp"
+		android:layout_marginTop="12dp"
+		android:layout_gravity="center_vertical">
+
+		<cc.winboll.studio.powerbell.views.BackgroundView
+			android:layout_width="100dp"
+			android:layout_height="100dp"
+			android:id="@+id/bv_background_preview"/>
+
+	</LinearLayout>
+
+	<TextView
+		android:id="@+id/tv_dialog_content"
+		android:layout_width="wrap_content"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="12dp"
+		android:text="应用正在后台使用网络，是否继续允许？"
+		android:textSize="15sp"
+		android:textColor="@android:color/darker_gray"/>
+
+	<LinearLayout
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content"
+		android:layout_marginTop="20dp"
+		android:orientation="horizontal"
+		android:gravity="end">
+
+		<Button
+			android:id="@+id/btn_cancel"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="取消"
+			android:textSize="14sp"
+			android:background="@android:drawable/btn_default_small"
+			android:layout_marginRight="8dp"/>
+
+		<Button
+			android:id="@+id/btn_confirm"
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="允许"
+			android:textSize="14sp"
+			android:background="@android:drawable/btn_default_small"/>
+
+	</LinearLayout>
+
+</LinearLayout>
+

powerbell/src/main/res/layout/fragment_mainview.xml

@@ -5,12 +5,13 @@
 	android:layout_width="match_parent"
 	android:layout_height="match_parent">
 
-	<ImageView
+	<cc.winboll.studio.powerbell.views.BackgroundView
+		xmlns:app="http://schemas.android.com/apk/res-auto"
+		android:orientation="vertical"
 		android:layout_width="match_parent"
 		android:layout_height="match_parent"
-		android:id="@+id/fragmentmainviewImageView1">
-
-	</ImageView>
+		android:background="#FF7381FF"
+		android:id="@+id/fragmentmainviewBackgroundView1"/>
 
 	<LinearLayout
 		android:orientation="vertical"

powerbell/src/main/res/layout/fragment_test_backgroundview.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<cc.winboll.studio.powerbell.views.BackgroundView
+	xmlns:android="http://schemas.android.com/apk/res/android"
+	xmlns:app="http://schemas.android.com/apk/res-auto"
+	android:orientation="vertical"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent"
+	android:background="#FF7381FF">
+
+	<HorizontalScrollView
+		android:layout_width="match_parent"
+		android:layout_height="wrap_content">
+
+		<Button
+			android:layout_width="wrap_content"
+			android:layout_height="wrap_content"
+			android:text="Main"
+			android:id="@+id/btn_main_activity"/>
+
+	</HorizontalScrollView>
+
+</cc.winboll.studio.powerbell.views.BackgroundView>
+

powerbell/src/stage/AndroidManifest.xml

@@ -4,6 +4,19 @@
 
     <application>
 
+        <activity
+            android:name="cc.winboll.studio.powerbell.MainActivity"
+            android:launchMode="singleTask"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity android:name="cc.winboll.studio.powerbell.unittest.MainUnitTestActivity"
+			android:exported="true">
+		</activity>
+		
         <provider
             android:name="androidx.core.content.FileProvider"
             android:authorities="cc.winboll.studio.powerbell.fileprovider"