public void OnPointerDown(PointerEventData eventData)
 {
     UIEvents.Trigger(EPointerEvent.PointerDown, eventData);
 }
 public void OnBeginDrag(PointerEventData eventData)
 {
     UIEvents.Trigger(EPointerEvent.DragStart, eventData);
 }
 public void OnDrag(PointerEventData eventData)
 {
     UIEvents.Trigger(EPointerEvent.Drag, eventData);
 }