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前言

在开发过程中，经常需要监听UI的点击事件，这里我给大家整理一下，脚本直接挂在需要监听的节点上即可。

脚本

using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;namespace GameLogic
{/// <summary>/// Ui点击事件处理器/// </summary>public class UIEventHandler : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler, IPointerUpHandler, IPointerDownHandler{UnityAction enterEvent;UnityAction exitEvent;UnityAction clickEvent;UnityAction downEvent;UnityAction upEvent;public void Init(){enterEvent = null;exitEvent = null;clickEvent = null;downEvent = null;upEvent = null;}/// <summary>/// 添加进入事件/// </summary>/// <param name="action"></param>public void AddEnterEvent(UnityAction action){enterEvent = action;}/// <summary>/// 添加离开事件/// </summary>/// <param name="action"></param>public void AddExitEvent(UnityAction action){exitEvent = action;}/// <summary>/// 添加点击事件/// </summary>/// <param name="action"></param>public void AddClickEvent(UnityAction action){clickEvent = action;}/// <summary>/// 添加按下事件/// </summary>/// <param name="action"></param>public void AddDownEvent(UnityAction action){downEvent = action;}/// <summary>/// 添加松开事件/// </summary>/// <param name="action"></param>public void AddUpEvent(UnityAction action){upEvent = action;}/// <summary>/// 进入范围触发/// </summary>/// <param name="eventdata"></param>public void OnPointerEnter(PointerEventData eventdata){//Debug.Log("===进入===");enterEvent?.Invoke();}/// <summary>/// 退出范围触发/// </summary>/// <param name="eventdata"></param>public void OnPointerExit(PointerEventData eventdata){//Debug.Log("===离开===");exitEvent?.Invoke();}/// <summary>/// 按下+松开才能触发（松开时需要在UI范围内，不然则不触发）/// </summary>/// <param name="eventdata"></param>public void OnPointerClick(PointerEventData eventdata){//Debug.Log("===点击===");clickEvent?.Invoke();}/// <summary>/// 按下触发/// </summary>/// <param name="eventdata"></param>public void OnPointerDown(PointerEventData eventdata){//Debug.Log("===按下===");downEvent?.Invoke();}/// <summary>/// 松开触发/// </summary>/// <param name="eventdata"></param>public void OnPointerUp(PointerEventData eventdata){//Debug.Log("===抬起===");upEvent?.Invoke();}}
}