Android(安卓)分别设置锁屏和桌面壁纸的实现

新公司第一个修改的需求，可以设置桌面壁纸；设置锁屏壁纸；同时设置桌面和锁屏壁纸，锁屏壁纸只能用静态的图片效果如下所示:
直接贴代码，
diff --git a/alps/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/alps/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.javaindex f808eba..8e5f0cb 100755--- a/alps/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java+++ b/alps/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java@@ -211,6 +211,15 @@ import java.lang.reflect.Field; import android.widget.TextView; /// @} +//add by frankchen+import android.graphics.drawable.BitmapDrawable;+import android.graphics.Paint;+import java.io.ByteArrayInputStream;+import java.io.File;+import java.io.FileNotFoundException;+import java.io.FileOutputStream;+import android.graphics.Bitmap.CompressFormat;+ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,         DragDownHelper.DragDownCallback, ActivityStarter, OnUnlockMethodChangedListener,         HeadsUpManager.OnHeadsUpChangedListener {@@ -254,6 +263,16 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,      * The delay to reset the hint text when the hint animation is finished running.      */     private static final int HINT_RESET_DELAY_MS = 1200;++//add by frankchen start++private byte[] outByteArray =null;+private Bitmap bitmap_receive=null;++private File appDir = new File("/data/data/com.android.systemui", "locked");;+private static String lockfileName = "lockwallpaper" + ".jpg";++//add by frankchen end      private static final AudioAttributes VIBRATION_ATTRIBUTES = new AudioAttributes.Builder()             .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)@@ -1004,6 +1023,12 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,         filter.addAction(Intent.ACTION_USER_PRESENT);                  context.registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null);++//add by frankchen start+ IntentFilter filter_hy = new IntentFilter();+        filter_hy.addAction("android.yue.lockscreen.action");+context.registerReceiverAsUser(mTestReceiver, UserHandle.ALL, filter_hy, null, null);+//add by frankchen end          IntentFilter demoFilter = new IntentFilter();         if (DEBUG_MEDIA_FAKE_ARTWORK) {@@ -3459,6 +3484,9 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,         }         mContext.unregisterReceiver(mBroadcastReceiver);         mContext.unregisterReceiver(mDemoReceiver);++mContext.unregisterReceiver(mTestReceiver);+         mAssistManager.destroy();          final SignalClusterView signalCluster =@@ -3789,7 +3817,8 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,                     goingToFullShade || mState == StatusBarState.SHADE_LOCKED || fromShadeLocked);         }         if (mState == StatusBarState.KEYGUARD || mState == StatusBarState.SHADE_LOCKED) {-                if(i== 1){+               /*frankchen+   if(i== 1){                   mHolder.setBackgroundResource(R.drawable.a1);                 }else if(i==2){                   mHolder.setBackgroundResource(R.drawable.a2);@@ -3810,7 +3839,19 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode, }else if(i==10){                   mHolder.setBackgroundResource(R.drawable.a10); }-+/*/+Bitmap bm =getImage();+ Log.d(TAG, "getImage getImage bm ===" + bm);+if (bm != null) {+            Drawable dr = new BitmapDrawable(mContext.getResources(), generateBitmap(bm, 480, 854));+            dr.setDither(false);+            mHolder.setBackground(dr);+            }else+            {+               // mHolder.setBackgroundResource(0);+   mHolder.setBackgroundResource(R.drawable.a1);+            }+//*/             mScrimController.setKeyguardShowing(true);             mIconPolicy.setKeyguardShowing(true);         } else {@@ -3833,6 +3874,110 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,         mKeyguardMonitor.notifyKeyguardState(mStatusBarKeyguardViewManager.isShowing(),                 mStatusBarKeyguardViewManager.isSecure());     }++//add by frankchen start++private void saveImage(Bitmap bmp) {+       +        if (!appDir.exists()) {+            appDir.mkdir();+        }+        +        File file = new File(appDir, lockfileName);+        try {+            FileOutputStream fos = new FileOutputStream(file);+            bmp.compress(CompressFormat.JPEG, 100, fos);+            fos.flush();+            fos.close();+        } catch (FileNotFoundException e) {+            e.printStackTrace();+        } catch (IOException e) {+            e.printStackTrace();+        }+    }++private Bitmap getImage()+    {+         File file = new File(appDir, lockfileName);+         System.out.println(file.getPath());+         if (file.exists()) {+             Bitmap bitmap=BitmapFactory.decodeFile(file.getPath());+             return bitmap;+         }else+         {        +         return null;+         }+    }++private BroadcastReceiver mTestReceiver = new BroadcastReceiver() {+        @Override+        public void onReceive(Context context, Intent intent) {+            if ("android.yue.lockscreen.action".equals(intent.getAction())) {+               +             outByteArray= intent.getExtras().getByteArray("outByteArray");+   Log.i("frankchen","outByteArray=====------ "+outByteArray);+   InputStream is = new ByteArrayInputStream(outByteArray);+   bitmap_receive = BitmapFactory.decodeStream(is);+   saveImage(bitmap_receive);+            }+        }+    };++private Bitmap generateBitmap(Bitmap bm, int width, int height) {+        if (bm == null) {+            return null;+        }++        bm.setDensity(DisplayMetrics.DENSITY_HIGH);++        if (width <= 0 || height <= 0+                || (bm.getWidth() == width && bm.getHeight() == height)) {+            return bm;+        }++        // This is the final bitmap we want to return.+        try {+            Bitmap newbm = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);+            newbm.setDensity(DisplayMetrics.DENSITY_HIGH);++            Canvas c = new Canvas(newbm);+            Rect targetRect = new Rect();+            targetRect.right = bm.getWidth();+            targetRect.bottom = bm.getHeight();++            int deltaw = width - targetRect.right;+            int deltah = height - targetRect.bottom;++            if (deltaw > 0 || deltah > 0) {+                // We need to scale up so it covers the entire area.+                float scale;+                if (deltaw > deltah) {+                    scale = width / (float)targetRect.right;+                } else {+                    scale = height / (float)targetRect.bottom;+                }+                targetRect.right = (int)(targetRect.right*scale);+                targetRect.bottom = (int)(targetRect.bottom*scale);+                deltaw = width - targetRect.right;+                deltah = height - targetRect.bottom;+            }++            targetRect.offset(deltaw/2, deltah/2);++            Paint paint = new Paint();+            paint.setFilterBitmap(true);+            paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));+            c.drawBitmap(bm, null, targetRect, paint);++            bm.recycle();+            c.setBitmap(null);+            return newbm;+        } catch (OutOfMemoryError e) {+            return bm;+        }+    }++//add by frankchen end      private void updateDozingState() {         boolean animate = !mDozing && mDozeScrimController.isPulsing();diff --git a/alps/packages/apps/LauncherL1/WallpaperPicker/res/values-zh-rCN/strings.xml b/alps/packages/apps/LauncherL1/WallpaperPicker/res/values-zh-rCN/strings.xmlindex 1def9ed..44eeac1 100755--- a/alps/packages/apps/LauncherL1/WallpaperPicker/res/values-zh-rCN/strings.xml+++ b/alps/packages/apps/LauncherL1/WallpaperPicker/res/values-zh-rCN/strings.xml@@ -33,4 +33,10 @@     "选择图片"     "壁纸"     "剪裁壁纸"++设置墙纸+    设置桌面墙纸+    设置锁屏墙纸+    设置桌面和锁屏墙纸+ diff --git a/alps/packages/apps/LauncherL1/WallpaperPicker/res/values/strings.xml b/alps/packages/apps/LauncherL1/WallpaperPicker/res/values/strings.xmlindex 1ee3513..0f860af 100755--- a/alps/packages/apps/LauncherL1/WallpaperPicker/res/values/strings.xml+++ b/alps/packages/apps/LauncherL1/WallpaperPicker/res/values/strings.xml@@ -50,4 +50,11 @@     Wallpapers          Crop wallpaper+++Set Wallpaper+    Set home screen wallpaper+    Set locked screen wallpaper+    Set both+ diff --git a/alps/packages/apps/LauncherL1/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java b/alps/packages/apps/LauncherL1/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.javaindex 8593525..23d1e45 100755--- a/alps/packages/apps/LauncherL1/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java+++ b/alps/packages/apps/LauncherL1/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java@@ -67,6 +67,8 @@ import java.lang.SecurityException; import android.app.AlertDialog; import android.content.DialogInterface; +//add by frankchen+import android.content.DialogInterface.OnClickListener;  public class WallpaperCropActivity extends Activity {     private static final String LOGTAG = "Launcher3.CropActivity";@@ -109,6 +111,8 @@ public class WallpaperCropActivity extends Activity {     protected View mSetWallpaperButton; private static int flag=-1; +private static int mWallpaperMode=0;+ private static final boolean mIsOmaDrmSupport = (SystemProperties.getInt("ro.mtk_oma_drm_support", 0) == 1) ? true : false; @@ -142,6 +146,64 @@ public class WallpaperCropActivity extends Activity { flag = mFlag; } +//add by frankchen start+ /**+     * 单选Dialog+     */+    int choice=0;+    private void showSingDialog(){+Intent cropIntent = getIntent();+        final Uri imageUri = cropIntent.getData();++        if (imageUri == null) {+            Log.e(LOGTAG, "No URI passed in intent, exiting WallpaperCropActivity");+            finish();+            return;+        }++        final String[] items = {getString(R.string.set_home_sreen_wallpaper),getString(R.string.set_locked_sreen_wallpaper),getString(R.string.set_both_home_locked)};+        AlertDialog.Builder singleChoiceDialog = new AlertDialog.Builder(WallpaperCropActivity.this,4);+      //  singleChoiceDialog.setIcon(R.drawable.ic_launcher);+        singleChoiceDialog.setTitle(getString(R.string.set_wallpaper_title));+        //+        singleChoiceDialog.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {+            @Override+            public void onClick(DialogInterface dialog, int which) {+                choice= which;+            }+        });+        singleChoiceDialog.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {+            @Override+            public void onClick(DialogInterface dialog, int which) {+                if (choice!=-1){+if(choice==0)+{+mWallpaperMode = 0;+cropImageAndSetWallpaper(imageUri, null, true); +}else if(choice==1)+{+mWallpaperMode = 1;+cropImageAndSetWallpaper(imageUri, null, true); +}else if(choice==2)+{+mWallpaperMode = 2;+cropImageAndSetWallpaper(imageUri, null, true); +}+                }+            }+        });+        singleChoiceDialog.setNegativeButton(android.R.string.cancel, new OnClickListener() {++@Override+public void onClick(DialogInterface dialog, int which) {+// TODO Auto-generated method stub+dialog.cancel();+}+});+        singleChoiceDialog.show();+    }+//add by frankchen end+     protected void init() {         setContentView(R.layout.wallpaper_cropper); @@ -165,8 +227,12 @@ public class WallpaperCropActivity extends Activity {                 new View.OnClickListener() {                     @Override                     public void onClick(View v) {+/*                         boolean finishActivityWhenDone = true;                         cropImageAndSetWallpaper(imageUri, null, finishActivityWhenDone);+/*/+showSingDialog();+//*/                     }                 });         mSetWallpaperButton = findViewById(R.id.set_wallpaper_button);@@ -174,10 +240,13 @@ public class WallpaperCropActivity extends Activity {                     @Override                     public void onClick(View arg0) { Log.e("wyy","View");-android.util.Log.e("chengrq","mSetWallpaperButton  show show");+/*android.util.Log.e("chengrq","mSetWallpaperButton  show show"); //flag = getIntent().getIntExtra("flag", 0); flag = 0;-cropImageAndSetWallpaper(imageUri, null, true);   +cropImageAndSetWallpaper(imageUri, null, true); +/*/+showSingDialog();+                     //*/                     }                 }); @@ -532,6 +601,7 @@ public class WallpaperCropActivity extends Activity {         if (onBitmapCroppedHandler != null) {             cropTask.setOnBitmapCropped(onBitmapCroppedHandler);         }+//cropTask.setWallpaperMode(mWallpaperMode);//add by frankchen         cropTask.execute();     } @@ -720,7 +790,8 @@ public class WallpaperCropActivity extends Activity {              if (mSetWallpaper && mNoCrop) {                 try {-                    InputStream is = regenerateInputStream();+                    /* frankchen+InputStream is = regenerateInputStream();                     if (is != null) {                         //wallpaperManager.setStream(is);                         //Utils.closeSilently(is);@@ -732,6 +803,26 @@ public class WallpaperCropActivity extends Activity { } Utils.closeSilently(is);                     }+/*/++++InputStream is_home = regenerateInputStream();+                 Log.i(LOGTAG, "mWallpaperMode mWallpaperMode==" + mWallpaperMode);+ Log.e("frankchen","mWallpaperMode aaaaaaa mWallpaperMode="+mWallpaperMode);+                if (is_home != null) {+                    if(mWallpaperMode==1){+wallpaperManager.setStream(is_home);+                    }else if(mWallpaperMode==2){                       +wallpaperManager.setStream(is_home);+                    }else{+                        wallpaperManager.setStream(is_home);+                    }++                    Utils.closeSilently(is_home);+                }+//*/+                 } catch (IOException e) {                     Log.w(LOGTAG, "cannot write stream to wallpaper", e);                     failure = true;@@ -968,6 +1059,7 @@ public class WallpaperCropActivity extends Activity {  Log.e("chengrqq","flag="+flag);                             byte[] outByteArray = tmpOut.toByteArray();+/*frankchen if(flag==1) { //wallpaperManager.setStream(new ByteArrayInputStream(outByteArray),1);@@ -977,6 +1069,30 @@ public class WallpaperCropActivity extends Activity { { wallpaperManager.setStream(new ByteArrayInputStream(outByteArray)); }+/*/+//int choose_mode= getLockScreenSettingFlag();+Log.e("frankchen","mWallpaperMode bbbbbb mWallpaperMode="+mWallpaperMode);+//Log.e("frankchen","choose_mode choose_mode ="+choose_mode);+ if(mWallpaperMode==1||flag==1){++                            //lock                           +                Intent intent = new Intent("android.yue.lockscreen.action");//+                intent.putExtra("outByteArray",outByteArray);+               mContext.sendBroadcast(intent);++                            }else if(mWallpaperMode==2||flag==2){+                            //both+wallpaperManager.setStream(new ByteArrayInputStream(outByteArray));++Intent intent = new Intent("android.yue.lockscreen.action");//+                intent.putExtra("outByteArray",outByteArray);+               mContext.sendBroadcast(intent);                       +                            }else{++                            //home+                            wallpaperManager.setStream(new ByteArrayInputStream(outByteArray));+                            }+//*/                             if (mOnBitmapCroppedHandler != null) {                                 mOnBitmapCroppedHandler.onBitmapCropped(outByteArray);                             }@@ -992,6 +1108,12 @@ public class WallpaperCropActivity extends Activity {             }             return !failure; // True if any of the operations failed         }++//add by frankchen start+/*public void setWallpaperMode(int wpMode){+        mWallpaperMode = wpMode;+        }*/+//add by frankchen end
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