GestureDetector.OnDoubleTapListener
boolean onSingleTapConfirmed(MotionEvent e)
boolean onDoubleTap(MotionEvent e)
@param e The down motion event of the first tap of the double-tap.
ダブルタップのうち2タップ目の押下をハンドリングできる
boolean onDoubleTapEvent(MotionEvent e)
Notified when an event within a double-tap gesture occurs, including the down, move, and up events.
@param e The motion event that occurred during the double-tap gesture.