public class MySurfaceView extends SurfaceView implements 
SurfaceHolder.Callback, Runnable 

@Override
public void surfaceCreated(SurfaceHolder holder) {

}

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

}

@Override
public void surfaceDestroyed(SurfaceHolder holder) {

}

public class MySurfaceView extends SurfaceView implements SurfaceHolder.Callback, Runnable {

  private SurfaceHolder mHolder;
  private Canvas mCanvs;
  private Boolean mIsDrawing;


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

  public MySurfaceView(Context context, AttributeSet attrs) {
    this(context, attrs, 0);
  }

  public MySurfaceView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  private void init() {
    mHolder = getHolder();
    mHolder.addCallback(this);
    setFocusable(true);
    setFocusableInTouchMode(true);
    this.setKeepScreenOn(true);
  }

  @Override
  public void surfaceCreated(SurfaceHolder holder) {
    mIsDrawing = true;
    new Thread(this).start();
  }

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

  }

  @Override
  public void surfaceDestroyed(SurfaceHolder holder) {
    mIsDrawing = false;
  }

  @Override
  public void run() {
    while (mIsDrawing) {
      draw();
    }
  }


  public void draw() {
    try {
      mCanvs = mHolder.lockCanvas();
    } catch (Exception e) {

    } finally {
      mHolder.unlockCanvasAndPost(mCanvs);
    }
  }
}

mHolder.unlockCanvasAndPost(mCanvs);