public override bool OnTouchEvent(MotionEvent motionEvent)
{
switch (motionEvent.Action)
{
case MotionEventActions.Down:
var touchDown = motionEvent.ToPointF();
if (pointIsInActionableArea(touchDown))
{
lastTouch = touchDown;
}
return(base.OnTouchEvent(motionEvent));
case MotionEventActions.Up:
var touchUp = motionEvent.ToPointF();
if (pointIsInActionableArea(touchUp) &&
touchUpIsCloseEnoughToLastTouch(touchUp) &&
!lastTouchInterceptsAnyChild(touchUp))
{
emptySpaceTouchedSubject.OnNext(touchUp);
}
lastTouch = null;
return(base.OnTouchEvent(motionEvent));
case MotionEventActions.Cancel:
case MotionEventActions.Outside:
lastTouch = null;
return(base.OnTouchEvent(motionEvent));
default:
return(base.OnTouchEvent(motionEvent));
}
}