OnTouch Listener doesn't change bitmap location

Question

I have a \"Board.java\" class, which is an activity, and a \"MySurfaceView.java\", which is a SurfaceView. I\'m drawing some bitmap on the

Answer 1

Remove TouchListener in Board

Board:

public class Board extends AppCompatActivity{

MySurfaceView mv;
Bitmap bp;

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mv = new MySurfaceView(this);
    bp = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
    setContentView(mv);

}

@Override
protected void onPause() {
    super.onPause();
    mv.pause();
}

@Override
protected void onResume() {
    super.onResume();
    mv.resume();
}
}

And in MySurfaceView

public class MySurfaceView extends SurfaceView implements Runnable {
float x, y;
Bitmap bp;
Thread t = null;
SurfaceHolder holder;
boolean isItOK = false;


public MySurfaceView(Context context) {
    super(context);
    Bitmap bpOld = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
    bp = Bitmap.createScaledBitmap(bpOld, 250, 250, true);
    x = 0;
    y = 0;
    holder = getHolder();
}


@Override
public void run() {
    while(isItOK){
        if(!holder.getSurface().isValid())
            continue;
        Canvas c = holder.lockCanvas();
        c.drawARGB(255,150,150,10);

        c.drawBitmap(bp,x-(bp.getWidth()/2),y-(bp.getHeight()/2),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() {
    isItOK = true;
    t = new Thread(this);
    t.start();
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    x = event.getX();
    y = event.getY();
  //  run();
    return super.onTouchEvent(event);
}
}

Above work fine for me.