在Android中检测触摸事件何时结束

Question

How can I detect when the touch event is over in Android,in Webviews specifically.

pseudocode: if (touch event is over) then do something end

Thanks!

Answer 1

The MotionEvent object passed to the onTouchEvent(...) method has a getAction() method, you can use it to determine if the event is over. eg:

webViews.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    //pointer down.
                    break;
                case MotionEvent.ACTION_UP:
                case MotionEvent.ACTION_CANCEL:
                case MotionEvent.ACTION_OUTSIDE:
                    //event has finished, pointer is up or event was canceled or the pointer is outside of the view's bounds
                    break;
            }
            return false;
      }
}

Also, if you want to consume the event (stop it from propagating) just make the onTouch(...) method return true instead of false .