Android: Two fingers with double tap can be detected using GestureDetector?

Question

question above. For me, getPointerCount () is always 1, after detecting a double click.

private GestureDetector mGestureDetector; mGestureDetector = new GestureDetector(this, new MyGestureListener()); 

...

  public boolean onTouch(View v, MotionEvent event) { return mGestureDetector.onTouchEvent(event); } 

...

 private class MyGestureListener extends GestureDetector.SimpleOnGestureListener { @Override public boolean onDoubleTap(MotionEvent e) { return super.onDoubleTap(e); } } 

Answer 1

GestureDetector is only capable of detecting one-finger gestures. The “double-tap” gesture that you are currently listening to occurs when the user knocks, releases, and then again presses the screen with one of his fingers.

If you want to listen to gestures with a few fingers, you will have to do it yourself or use the ScaleGestureDetector (only for scale gestures).