UI--鼠标操作事件

鼠标操作事件接口需要先引入命名空间：

using UnityEngine.EventSystems;

 

 

鼠标进入

 

接口：IPointerEnterHandler

 

回调函数：void OnPointerEnter(PointerEventData eventData)

 

鼠标离开

 

接口：IPointerExitHandler

 

回调函数：void OnPointerExit(PointerEventData eventData)

 

鼠标点下

 

接口：IPointerDownHandler

 

回调函数：void OnPointerDown(PointerEventData eventData)

 

鼠标抬起

 

接口：IPointerUpHandler

 

回调函数：void OnPointerUp(PointerEventData eventData)

 

鼠标点击

 

接口：IPointerClickHandler

 

回调函数：void OnPointerClick(PointerEventData eventData)

 

开始拖拽

 

接口：IBeginDragHandler

 

回调函数：void OnBeginDrag(PointerEventData eventData)

 

拖拽中

 

接口：IDragHandler

 

回调函数：void OnDrag(PointerEventData eventData)

 

拖拽结束

 

接口：IEndDragHandler

 

回调函数：void OnEndDrag(PointerEventData eventData)