當設置動態壁紙時崩潰android

我在活牆紙上工作; 在這種情況下，當我看到它在預覽，它沒有任何問題，並顯示圖像但是，當設置它設備的背景下，它會崩潰當設置動態壁紙時崩潰android

代碼：

import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.graphics.Point; 
import android.os.Handler; 
import android.provider.ContactsContract.CommonDataKinds.Event; 
import android.service.wallpaper.WallpaperService; 
import android.util.Log; 
import android.view.Display; 
import android.view.MotionEvent; 
import android.view.SurfaceHolder; 
import android.view.WindowManager; 
import android.widget.Toast; 


public class MoharamLiveWallpaperService extends WallpaperService { 

    WallpaperEngine wallpeperEngine = new WallpaperEngine(); 

    @Override 
    public Engine onCreateEngine() { 

     return wallpeperEngine; 
    } 
    @Override 
    public void onDestroy() { 
     super.onDestroy(); 
     wallpeperEngine.Destroy(); 
    } 

    public class WallpaperEngine extends Engine 
    { 
     final int DELAY_AFTER_FRAME = 16; 
     final int SLIDE_NUMBER = 4; 
     int screenWidth; 
     int screenHeight; 
     int backgroundXOffset=0; 
     Handler handler = new Handler(); 
     Bitmap backgroundBitmap; 


     Runnable updateRunnable = new Runnable() { 

      @Override 
      public void run() { 
       Update(); 
      } 
     }; 

     public WallpaperEngine() { 
     } 

     void Update() 
     { 

      Draw(); 
      handler.postDelayed(updateRunnable, DELAY_AFTER_FRAME); 
     } 

     void Draw() 
     { 
      try 
      { 
       SurfaceHolder surfaceHolder = getSurfaceHolder(); 
       Canvas canvas = surfaceHolder.lockCanvas(); 
       if(canvas != null) 
       { 
        canvas.drawColor(Color.BLACK); 
        canvas.drawBitmap(backgroundBitmap, backgroundXOffset, 0, null); 
        surfaceHolder.unlockCanvasAndPost(canvas); 
       } 


      } 
      catch (Exception e) { 

      } 
     } 

     @Override 
     public void onSurfaceCreated(SurfaceHolder holder) { 
      super.onSurfaceCreated(holder); 
      screenWidth = holder.getSurfaceFrame().right; 
      screenHeight = holder.getSurfaceFrame().bottom; 
      backgroundBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.background_image0); 
      int bitmapWidth = (backgroundBitmap.getWidth()*screenHeight)/backgroundBitmap.getHeight(); 

      backgroundBitmap = Bitmap.createScaledBitmap(backgroundBitmap, bitmapWidth, screenHeight, false); 
      handler.post(updateRunnable); 
     } 

     @Override 
     public void onSurfaceChanged(SurfaceHolder holder, int format, 
       int width, int height) { 
      super.onSurfaceChanged(holder, format, width, height); 

      screenWidth = width; 
      screenHeight = height; 
     } 

     @Override 
     public void onOffsetsChanged(float xOffset, float yOffset, 
       float xOffsetStep, float yOffsetStep, int xPixelOffset, 
       int yPixelOffset) { 
      super.onOffsetsChanged(xOffset, yOffset, xOffsetStep, yOffsetStep, 
        xPixelOffset, yPixelOffset); 
      Log.i("WP", "xOffset : " +xOffset+" yOffset : "+yOffset+"\n"+ 
         "xOffsetStep : "+xOffsetStep+" yOffsetStep : "+yOffsetStep+"\n"+ 
         "xPixelOffset : "+xPixelOffset+" yPixelOffset : "+yPixelOffset); 
     } 

     public void Destroy() 
     { 
      handler.removeCallbacks(updateRunnable); 
     } 
    } 

}

和錯誤：

10-06 07:53:10.420: E/BaseSurfaceHolder(2253): Exception locking surface 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): java.lang.IllegalStateException: Surface has already been released. 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.view.Surface.checkNotReleasedLocked(Surface.java:386) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.view.Surface.lockCanvas(Surface.java:235) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.internalLockCanvas(BaseSurfaceHolder.java:184) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.lockCanvas(BaseSurfaceHolder.java:157) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.os.Handler.handleCallback(Handler.java:730) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.os.Looper.loop(Looper.java:137) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at android.app.ActivityThread.main(ActivityThread.java:5103) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invokeNative(Native Method) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invoke(Method.java:525) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
10-06 07:53:10.420: E/BaseSurfaceHolder(2253): at dalvik.system.NativeStart.main(Native Method) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): Exception locking surface 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): java.lang.IllegalStateException: Surface has already been released. 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.view.Surface.checkNotReleasedLocked(Surface.java:386) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.view.Surface.lockCanvas(Surface.java:235) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.internalLockCanvas(BaseSurfaceHolder.java:184) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.lockCanvas(BaseSurfaceHolder.java:157) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.os.Handler.handleCallback(Handler.java:730) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.os.Looper.loop(Looper.java:137) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at android.app.ActivityThread.main(ActivityThread.java:5103) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invokeNative(Native Method) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invoke(Method.java:525) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
10-06 07:53:10.440: E/BaseSurfaceHolder(2253): at dalvik.system.NativeStart.main(Native Method) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): Exception locking surface 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): java.lang.IllegalStateException: Surface has already been released. 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.view.Surface.checkNotReleasedLocked(Surface.java:386) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.view.Surface.lockCanvas(Surface.java:235) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.internalLockCanvas(BaseSurfaceHolder.java:184) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.lockCanvas(BaseSurfaceHolder.java:157) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.os.Handler.handleCallback(Handler.java:730) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.os.Looper.loop(Looper.java:137) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at android.app.ActivityThread.main(ActivityThread.java:5103) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invokeNative(Native Method) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invoke(Method.java:525) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
10-06 07:53:10.550: E/BaseSurfaceHolder(2253): at dalvik.system.NativeStart.main(Native Method) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): Exception locking surface 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): java.lang.IllegalStateException: Surface has already been released. 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.view.Surface.checkNotReleasedLocked(Surface.java:386) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.view.Surface.lockCanvas(Surface.java:235) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.internalLockCanvas(BaseSurfaceHolder.java:184) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at com.android.internal.view.BaseSurfaceHolder.lockCanvas(BaseSurfaceHolder.java:157) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.os.Handler.handleCallback(Handler.java:730) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.os.Handler.dispatchMessage(Handler.java:92) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.os.Looper.loop(Looper.java:137) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at android.app.ActivityThread.main(ActivityThread.java:5103) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invokeNative(Native Method) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at java.lang.reflect.Method.invoke(Method.java:525) 
10-06 07:53:10.660: E/BaseSurfaceHolder(2253): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)

...

它更多的錯誤，但我把他們中的一些

來源

2014-10-06 Project Stackoverflow

Does [this]（http://stackoverflow.com/questions/20665636/livewallpaper-java-lang-illegalstateexception-surface-has-already-been-release）或[this]（http://stackoverflow.com/questions/16194941/the-surface-has-been-released-when-i-try-to-setdisplay-to-mediaplayer）help？ – 2014-10-06 04:39:52

是的！非常感謝.... – 2014-10-06 05:01:26

發表回答給acsept – 2014-10-06 05:01:47

由於Surface可能已被銷燬，您可能會面臨問題。所以覆蓋surfaceDestroyed這樣的：

@Override 
public void surfaceDestroyed(SurfaceHolder holder) { 
    synchronized (this) { 
     //manage flags 
     //remove handler's callbacks 
    } 
}

參考this職位和this one的更多細節。

希望它有幫助。

來源

2014-10-06 05:09:21

當設置動態壁紙時崩潰android

回答

相關問題