Android IllegalArgumentException lockCanvas（）

我一直在努力處理這個異常，我環顧四周，但沒有什麼可以幫助我。Android IllegalArgumentException lockCanvas（）

下面的代碼

package com.example.surfacetest; 

import android.app.Activity; 
import android.content.Context; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.MotionEvent; 
import android.view.Surface.OutOfResourcesException; 
import android.view.SurfaceHolder; 
import android.view.SurfaceView; 

public class BoardSurfaceActivity extends Activity { 
    /** Called when the activity is first created. */ 

    private static final String TAG = BoardSurfaceActivity.class.getSimpleName(); 
    private BoardSurface bS; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     bS = new BoardSurface(this); 
     setContentView(bS); 
     Log.d(TAG, "View added"); 
    } 

    @Override 
    protected void onDestroy() { 
     Log.d(TAG, "Destroying..."); 
     super.onDestroy(); 
    } 

    @Override 
    protected void onStop() { 
     Log.d(TAG, "Stopping..."); 
     super.onStop(); 
    } 

    @Override 
    protected void onRestart() { 
     // TODO Auto-generated method stub 
     super.onRestart(); 
    } 

    @Override 
    protected void onPause() { 
     Log.d(TAG, "Pausing..."); 
     super.onPause(); 
    } 

    @Override 
    protected void onResume() { 
     Log.d(TAG, "Resuming..."); 
     super.onResume(); 

    } 

    public class BoardSurface extends SurfaceView implements SurfaceHolder.Callback, Runnable { 
     final String TAG = BoardSurface.class.getSimpleName(); 
     private Stuff stuff; 
     Thread t = null; 
     SurfaceHolder holder; 
     boolean isItOk = false; 

     public BoardSurface(Context context) { 
      super(context); 
      holder = getHolder(); 
      getHolder().addCallback(this); 
      stuff = new Stuff(BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher), 50, 50); 
      t = new Thread(this); 
      setFocusable(true); 
     } 

     @Override 
     public void surfaceCreated(SurfaceHolder holder) { 
      Log.d(TAG, "Surface created"); 
      resume(); 
     } 

     @Override 
     public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { 

     } 

     @Override 
     public void surfaceDestroyed(SurfaceHolder holder) { 
      Log.d(TAG, "Surface Destroyed"); 
      pause(); 
     } 

     @Override 
     public boolean onTouchEvent(MotionEvent event) { 
      if (event.getAction() == MotionEvent.ACTION_DOWN) { 
       // delegating event handling to the droid 
       stuff.handleActionDown((int) event.getX(), (int) event.getY()); 

       // check if in the lower part of the screen we exit 
       if (event.getY() > getHeight() - 50) { 
        ((Activity) getContext()).finish(); 
       } else { 
        Log.d(TAG, "Coords: x=" + event.getX() + ",y=" + event.getY()); 
       } 
      } 
      if (event.getAction() == MotionEvent.ACTION_MOVE) { 
       // the gestures 
       if (stuff.isTouched()) { 
        // the droid was picked up and is being dragged 
        stuff.setX((int) event.getX()); 
        stuff.setY((int) event.getY()); 
       } 
      } 
      if (event.getAction() == MotionEvent.ACTION_UP) { 
       // touch was released 
       if (stuff.isTouched()) { 
        stuff.setTouched(false); 
       } 
      } 
      return true; 
     } 

     public void draw(Canvas canvas) { 
      canvas.drawColor(Color.BLUE); 
      stuff.draw(canvas); 
     } 

     @Override 
     public void run() { 
      while (isItOk) { 
       holder = getHolder(); 
       if (holder.getSurface().isValid()) { 

        Canvas c = null; 
        try { 
         // make sure holder is updated 
         c = holder.lockCanvas(null); 
         if (c != null) { 
          synchronized (holder) { 
           draw(c); 
          } 
         } 
        } catch (IllegalArgumentException e) { 
         // TODO Auto-generated catch block 
         e.printStackTrace(); 
        } finally { 
         if (c != null) { 
          holder.unlockCanvasAndPost(c); 
         } 
        } 
       } 
      } 
     } 

     public void pause() { 
      isItOk = false; 
      while (true) { 
       try { 
        t.join(); 
       } catch (InterruptedException e) { 
        e.printStackTrace(); 
       } 
       break; 
      } 
      t = null; 
     } 

     public void resume() { 
      if (t.getState() == Thread.State.TERMINATED) { 
       t = new Thread(this); 
       isItOk = true; 
       t.start(); 
      } else { 
       isItOk = true; 
       t.start(); 
      } 

     } 
    } 
}

什麼是超級奇怪的是，我有這樣的痕跡：

10-22 08:54:41.153: D/BoardSurface(17298): Surface created 
10-22 08:54:41.394: E/memalloc(17298): /dev/pmem: Failed to map buffer size:24641536 offset:23699456 fd:56 Error: Invalid argument 
10-22 08:54:41.394: E/gralloc(17298): Could not mmap handle 0x89e2b8, fd=56 (Invalid argument) 
10-22 08:54:41.394: E/gralloc(17298): gralloc_register_buffer: gralloc_map failed 
10-22 08:54:41.394: W/GraphicBufferMapper(17298): registerBuffer(0x89e2b8) failed -22 (Invalid argument) 
10-22 08:54:41.394: E/GraphicBuffer(17298): unflatten: registerBuffer failed: Invalid argument (-22) 
10-22 08:54:41.394: E/memalloc(17298): /dev/pmem: Failed to map buffer size:24641536 offset:23699456 fd:56 Error: Invalid argument 
10-22 08:54:41.394: E/gralloc(17298): Could not mmap handle 0x89e2b8, fd=56 (Invalid argument) 
10-22 08:54:41.394: E/libgenlock(17298): perform_lock_unlock_operation: GENLOCK_IOC_DREADLOCK failed (lockType0x1,err=Bad file number fd=56) 
10-22 08:54:41.394: E/gralloc(17298): gralloc_lock: genlock_lock_buffer (lockType=0x2) failed 
10-22 08:54:41.394: W/GraphicBufferMapper(17298): lock(...) failed -22 (Invalid argument) 
10-22 08:54:41.394: W/Surface(17298): failed locking buffer (handle = 0x89e2b8) 
10-22 08:54:41.424: E/SurfaceHolder(17298): Exception locking surface 
10-22 08:54:41.424: E/SurfaceHolder(17298): java.lang.IllegalArgumentException 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at android.view.Surface.nativeLockCanvas(Native Method) 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at android.view.Surface.lockCanvas(Surface.java:236) 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at android.view.SurfaceView$4.internalLockCanvas(SurfaceView.java:807) 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at android.view.SurfaceView$4.lockCanvas(SurfaceView.java:787) 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at com.example.surfacetest.BoardSurfaceActivity$BoardSurface.run(BoardSurfaceActivity.java:137) 
10-22 08:54:41.424: E/SurfaceHolder(17298):  at java.lang.Thread.run(Thread.java:841)

在我跑步循環。

但這裏是棘手的部分！當我按回（不是HOME）時，再次從菜單中啓動應用程序。它只是簡單的工作。

所以我真的不知道我錯過了什麼。

附加信息：我在HTC感覺XE運行，CM 10.2（安卓4.3.1）

編輯：

該設備是不是這裏的問題。與另一個HTC在股票ROM上試用。

編輯2：

即使我檢查：

if (holder.getSurface().isValid())

這是專門說，如果這是真的，lockcanvas（）會成功，我得到這個例外

10-22 10:11:27.688: E/SurfaceHolder(22195): Exception locking surface 
10-22 10:11:27.688: E/SurfaceHolder(22195): java.lang.IllegalArgumentException 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at android.view.Surface.nativeLockCanvas(Native Method) 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at android.view.Surface.lockCanvas(Surface.java:236) 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at android.view.SurfaceView$4.internalLockCanvas(SurfaceView.java:807) 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at android.view.SurfaceView$4.lockCanvas(SurfaceView.java:787) 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at com.example.surfacetest.BoardSurfaceActivity$BoardSurface.run(BoardSurfaceActivity.java:144) 
10-22 10:11:27.688: E/SurfaceHolder(22195):  at java.lang.Thread.run(Thread.java:841)

編輯3：

適用於Galaxy S4 Stock ROM和仿真器Intelx86 4.2.2

來源

2013-10-21 CinetiK

@CinetiK：發佈堆棧跟蹤的其餘部分。

HTC設備在旋轉和表面測試方面聲名狼借。您是否試過這個：

重新啓動您的手機。
轉到安全模式（即重新啓動手機，當看到HTC徽標時，長按音量減小按鈕）。手機將重新啓動並進入安全模式。
手機處於安全模式後，轉至設置|顯示&手勢| G傳感器校準。然後，在確保手機放置在平坦表面上的同時校準手機。一旦校準成功完成，以正常模式重新啓動手機。

如果上述步驟仍然沒有修復錯誤，因爲你正在使用CM 10.2，我會建議先測試你的股票ROM的Android應用程序。雖然我沒有反對定製Android ROM（我自己使用它們），但從經驗來看，我在定製ROM上出現了比股票ROM更多的無法解釋的錯誤。首先嚐試一個股票ROM，看看你是否仍然得到相同的錯誤。

來源

2013-10-21 16:12:01 ChuongPham

沒有幫助，嘗試與ICS股票HTC ROM，並沒有工作。 – CinetiK

IllegalArgumentException通常意味着一個方法失敗，因爲參數，上下文或引用字段爲空。在你做這件事之前，if（holder.getSurface（）。isValid（））'你可以先做這個'if（holder！= null）'，然後在檢查完成後再做其他代碼。 – ChuongPham

有點沒有意義，因爲如果持有者爲空，我無法使用getSurface（）獲得任何東西，所以...我會盡力但我確信它會通過。 – CinetiK

Android IllegalArgumentException lockCanvas（）

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