UGUI UI操作事件

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刚写了一个UI点击事件捕获脚本。

using UnityEngine; using UnityEngine.EventSystems;public delegate void UIEventHandler(object args);public class UIEventSender : MonoBehaviour, IPointerClickHandler, IPointerDownHandler,    IPointerUpHandler, IPointerEnterHandler, IPointerExitHandler{    private UIEventHandler onClickHandler;    private object clickArgs;    private UIEventHandler onPointHandler;    private object downArgs;    private UIEventHandler onUpHandler;    private object upArgs;    private UIEventHandler onEnterHandler;    private object enterArgs;    private UIEventHandler onExitHandler;    private object exitArgs;    public void OnPointerClick(PointerEventData eventData)    {        CallEventHandler(onClickHandler, clickArgs);    }    public void OnPointerDown(PointerEventData eventData)    {        CallEventHandler(onPointHandler, downArgs);    }    public void OnPointerEnter(PointerEventData eventData)    {        CallEventHandler(onEnterHandler, enterArgs);    }    public void OnPointerExit(PointerEventData eventData)    {        CallEventHandler(onExitHandler, exitArgs);    }    public void OnPointerUp(PointerEventData eventData)    {        CallEventHandler(onUpHandler, upArgs);    }    private void CallEventHandler(UIEventHandler evtHandler, object args)    {        if (null == evtHandler)        {            Debug.LogWarning("UIEventSender CallEventHandler evtHandler is null!");            return;        }        try        {            evtHandler(args);        }        catch (System.Exception exp)        {            Debug.LogException(exp);        }    }}

只要给控件添加一个这样的脚本，给几个事件回调和参数赋值，就可以捕获UI事件了。我没有使用继承UnityEngine.EventSystems.EventTrigger，因为继承它会导致多个事件冲突，比如滚动列表中的Item的点击事件和Drag事件，只能捕获点击事件。

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