EventTriggerListener

最新推荐文章于 2024-07-29 19:32:51 发布

lvcoc

最新推荐文章于 2024-07-29 19:32:51 发布

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分类专栏： unity 文章标签： U3D

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本文介绍了一个Unity中自定义的UI事件监听器类，该类继承自EventTrigger，用于处理各种UI交互事件，如鼠标进入、离开、点击等，并通过委托的方式通知UI组件响应这些事件。

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using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;

public class EventTriggerListener : EventTrigger {

    #region 变量
    //带参数是为了方便取得绑定了UI事件的对象  
    public delegate void UIDelegate(GameObject go);
    public event UIDelegate onPointerEnter;
    public event UIDelegate onPointerExit;
    public event UIDelegate onPointerDown;
    public event UIDelegate onPointerUp;
    public event UIDelegate onPointerClick;
    public event UIDelegate onInitializePotentialDrag;
    public event UIDelegate onBeginDrag;
    public event UIDelegate onDrag;
    public event UIDelegate onEndDrag;
    public event UIDelegate onDrop;
    public event UIDelegate onScroll;
    public event UIDelegate onUpdateSelected;
    public event UIDelegate onSelect;
    public event UIDelegate onDeselect;
    public event UIDelegate onMove;
    public event UIDelegate onSubmit;
    public event UIDelegate onCancel;
    #endregion

    public static EventTriggerListener GetListener(GameObject go)
    {
        EventTriggerListener listener = go.GetComponent<EventTriggerListener>();
        if (listener == null) listener = go.AddComponent<EventTriggerListener>();
        return listener;
    }

    #region 方法
    public override void OnPointerEnter(PointerEventData eventData)
    {
        if (onPointerEnter != null) onPointerEnter(gameObject);
    }
    public override void OnPointerExit(PointerEventData eventData)
    {
        if (onPointerExit != null) onPointerExit(gameObject);
    }
    public override void OnPointerDown(PointerEventData eventData)
    {
        if (onPointerDown != null) onPointerDown(gameObject);
    }
    public override void OnPointerUp(PointerEventData eventData)
    {
        if (onPointerUp != null) onPointerUp(gameObject);
    }
    public override void OnPointerClick(PointerEventData eventData)
    {
        if (onPointerClick != null) onPointerClick(gameObject);
    }
    public override void OnInitializePotentialDrag(PointerEventData eventData)
    {
        if (onInitializePotentialDrag != null) onInitializePotentialDrag(gameObject);
    }
    public override void OnBeginDrag(PointerEventData eventData)
    {
        if (onBeginDrag != null) onBeginDrag(gameObject);
    }
    public override void OnDrag(PointerEventData eventData)
    {
        if (onDrag != null) onDrag(gameObject);
    }
    public override void OnEndDrag(PointerEventData eventData)
    {
        if (onEndDrag != null) onEndDrag(gameObject);
    }
    public override void OnDrop(PointerEventData eventData)
    {
        if (onDrop != null) onDrop(gameObject);
    }
    public override void OnScroll(PointerEventData eventData)
    {
        if (onScroll != null) onScroll(gameObject);
    }
    public override void OnUpdateSelected(BaseEventData eventData)
    {
        if (onUpdateSelected != null) onUpdateSelected(gameObject);
    }
    public override void OnSelect(BaseEventData eventData)
    {
        if (onSelect != null) onSelect(gameObject);
    }
    public override void OnDeselect(BaseEventData eventData)
    {
        if (onDeselect != null) onDeselect(gameObject);
    }
    public override void OnMove(AxisEventData eventData)
    {
        if (onMove != null) onMove(gameObject);
    }
    public override void OnSubmit(BaseEventData eventData)
    {
        if (onSubmit != null) onSubmit(gameObject);
    }
    public override void OnCancel(BaseEventData eventData)
    {
        if (onCancel != null) onCancel(gameObject);
    }
    #endregion
}