Unity UGUI的EventTrigger事件监听器组件介绍使用示例

using UnityEngine;
using UnityEngine.EventSystems;
public class Example1 : MonoBehaviour, IPointerClickHandler
{
    public void OnPointerClick(PointerEventData eventData)
    {
        // 处理点击事件的代码
    }
}

using UnityEngine;
using UnityEngine.EventSystems;
public class Example2 : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    public void OnBeginDrag(PointerEventData eventData)
    {
        // 处理开始拖拽事件的代码
    }
    public void OnDrag(PointerEventData eventData)
    {
        // 处理拖拽事件的代码
    }
    public void OnEndDrag(PointerEventData eventData)
    {
        // 处理结束拖拽事件的代码
    }
}

using UnityEngine;
using UnityEngine.EventSystems;

public class Example3 : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    public void OnPointerEnter(PointerEventData eventData)
    {
        // 处理进入事件的代码
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        // 处理离开事件的代码
    }
}

using UnityEngine;
using UnityEngine.EventSystems;
public class Example4 : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
    private bool isPressed = false;
    public void OnPointerDown(PointerEventData eventData)
    {
        isPressed = true;
        // 开始计时或执行其他操作
    }
    public void OnPointerUp(PointerEventData eventData)
    {
        isPressed = false;
        // 停止计时或执行其他操作
    }
}

using UnityEngine;
using UnityEngine.EventSystems;
public class Example5 : MonoBehaviour, ICustomEventSystemHandler
{
    public void OnCustomEvent(BaseEventData eventData)
    {
        // 处理自定义事件的代码
    }
}