Code of Surfaceview

public class MySurfaceview extends SurfaceView implements SurfaceHolder.Callback {

    private MySurfaceThread thread;

    public MySurfaceview(Context context) {
        this(context,null);
    }

    public MySurfaceview(Context context, AttributeSet attrs) {
        super(context,attrs);
        mContext = context;
        //retreivig bitmaps from resources
        getHolder().addCallback(this);

        thread = new MySurfaceThread(getHolder(),this);

        setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                    if(event.getAction() == MotionEvent.ACTION_DOWN) {
                       .........
                       .........
                    }
                    else if(event.getAction() == MotionEvent.ACTION_MOVE) {
                       .......
                        ......
                    }
                    else if(event.getAction() == MotionEvent.ACTION_UP) {
                      .......
                      ......
                }
                return true;
            }
        });
    }

    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.drawRGB(0, 0, 0);
        // Drawing bitmaps on to the view here
    }

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {
		// TODO Auto-generated method stub

	}
	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		// TODO Auto-generated method stub
		thread.setRunning(true);
		  thread.start();
	}
	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		// TODO Auto-generated method stub
		boolean retry = true;
		  thread.setRunning(false);
		  while (retry) {
		   try {
		    thread.join();
		    retry = false;
		   }
		   catch (InterruptedException e) {
		   }
		  }
	}
	public class MySurfaceThread extends Thread {
		 private SurfaceHolder myThreadSurfaceHolder;
		 private MySurfaceview myThreadSurfaceView;
		 private boolean myThreadRun = false;

		 public MySurfaceThread(SurfaceHolder surfaceHolder, MySurfaceview surfaceView) {
		  myThreadSurfaceHolder = surfaceHolder;
		  myThreadSurfaceView = surfaceView;
		 }

		 public void setRunning(boolean b) {
		  myThreadRun = b;
		 }

		 @Override
		 public void run() {
		  // TODO Auto-generated method stub
		  while(myThreadRun){
			 // myThreadSurfaceView.re
		   Canvas c = null;

		   try{
		    c = myThreadSurfaceHolder.lockCanvas(null);
		    synchronized (myThreadSurfaceHolder){
		   // sleep(100);
		    myThreadSurfaceView.onDraw(c);
		    }
		    //
		   } catch (Exception e) {
		    // TODO Auto-generated catch block
		    e.printStackTrace();
		   }
		   finally{
		    // do this in a finally so that if an exception is thrown
		    // during the above, we don't leave the Surface in an
		    // inconsistent state
		    if (c != null) {
		     myThreadSurfaceHolder.unlockCanvasAndPost(c);
		    }
		   }
		  }
		 }
		}

}