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Unity3D研究院之UI完整透下事件（一百二十二）

 3 years ago
source link: https://www.xuanyusong.com/archives/4773
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Unity3D研究院之UI完整透下事件（一百二十二）

以前写过一篇类似的文章用于解决新手引导的问题，  Unity3D研究院之将UI的点击事件渗透下去（九十）  最近策划又提出一个需求，Tips窗口打开以后点击空白区域关掉，但是如果空白区域下有按钮滑动输入一类的要关掉Tips的同时要响应相面的事件，所以透下的事件就要比较完整了。开始我觉得这个需求很不合理，但是他们给我找了个这样实现的游戏，我瞬间只能服了。







代码在项目中已经测试了一段时间了，同时也欢迎大家测试。

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
public class UITouchPass : MonoBehaviour, IPointerClickHandler,
    IMoveHandler,IPointerDownHandler, IPointerUpHandler,IPointerEnterHandler,ISelectHandler, IDeselectHandler
    , ISubmitHandler, IInitializePotentialDragHandler, IBeginDragHandler, IEndDragHandler, IDragHandler, IScrollHandler
    public virtual void OnPointerClick(PointerEventData eventData)
        PassEvent(eventData, ExecuteEvents.pointerClickHandler);
    public virtual void OnPointerDown(PointerEventData eventData)
        PassEvent(eventData, ExecuteEvents.pointerDownHandler);
        if (Input.GetButtonDown("Submit"))
           ExecuteEvents.Execute(eventData.pointerCurrentRaycast.gameObject, eventData, ExecuteEvents.submitHandler);
    public virtual void OnPointerUp(PointerEventData eventData)
        PassEvent(eventData, ExecuteEvents.pointerUpHandler);
    public virtual void OnPointerEnter(PointerEventData eventData)
        PassEvent(eventData, ExecuteEvents.pointerEnterHandler);
    public virtual void OnSelect(BaseEventData eventData)
        PassEvent(eventData, ExecuteEvents.selectHandler);
    public virtual void OnDeselect(BaseEventData eventData)
        PassEvent(eventData, ExecuteEvents.deselectHandler);
    public virtual void OnSubmit(BaseEventData eventData)
        PassEvent(eventData, ExecuteEvents.submitHandler);
    public virtual void OnMove(AxisEventData eventData)
        PassEvent(eventData, ExecuteEvents.moveHandler);
    GameObject CacheGameObject;
    public virtual void OnInitializePotentialDrag(PointerEventData eventData)
        CacheGameObject = PassEvent(eventData, ExecuteEvents.initializePotentialDrag);
    public virtual void OnBeginDrag(PointerEventData eventData)
         PassEvent(eventData, ExecuteEvents.beginDragHandler);
    public virtual void OnDrag(PointerEventData eventData)
        ExecuteEvents.Execute(CacheGameObject, eventData, ExecuteEvents.dragHandler);
    public virtual void OnEndDrag(PointerEventData eventData)
        ExecuteEvents.Execute(CacheGameObject, eventData, ExecuteEvents.endDragHandler);
        CacheGameObject = null;
    public virtual void OnScroll(PointerEventData eventData)
        ExecuteEvents.Execute(CacheGameObject, eventData, ExecuteEvents.scrollHandler);
    List<RaycastResult> result = new List<RaycastResult>();
    GameObject PassEvent<T>(BaseEventData data, ExecuteEvents.EventFunction<T> function) where T : IEventSystemHandler
        PointerEventData eventData = data as PointerEventData;
        var pointerGo = eventData.pointerCurrentRaycast.gameObject?? eventData.pointerDrag;
        EventSystem.current.RaycastAll(eventData, result);
        foreach (var item in result)
            var go = item.gameObject;
            if (go != null && go != pointerGo)
                var excuteGo = ExecuteEvents.GetEventHandler<T>(go);
                if (excuteGo)
                    if (excuteGo.TryGetComponent<UITouchPass>(out var __))
                        return null;
                    ExecuteEvents.Execute(excuteGo, data, function);
                    return excuteGo;
                    if(go.TryGetComponent<UnityEngine.UI.Graphic>(out var com))
                        if (com.raycastTarget) return null;
        return null;

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