方法调用

//发送事件 【发送事件码，发送消息内容】 
EventCenterUtil.Broadcast(EventCenterUtil.EventType.Joystick, ui);//监听无参事件
EventCenterUtil.AddListener(EventCenterUtil.EventType.Joystick, show);
public void show(){}//发送事件 有参事件
EventCenterUtil.Broadcast(EventCenterUtil.EventType.Joystick, ui, "你好");EventCenterUtil.AddListener<int>(EventCenterUtil.EventType.Joystick, show);public void show(string i){ }

unity工具类

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using static Unity.VisualScripting.FlowStateWidget;
public class EventCenterUtil
{public enum EventType{Joystick}public delegate void CallBack();public delegate void CallBack<T>(T arg);public delegate void CallBack<T,X>(T arg1, X arg2);private static Dictionary<EventType, Delegate> m_EventTable = new Dictionary<EventType, Delegate>();/*** 添加监听* **/public static void AddListener(EventType eventType, CallBack callBack){if (!m_EventTable.ContainsKey(eventType)){m_EventTable.Add(eventType, null);}Delegate d = m_EventTable[eventType];if (d != null && d.GetType() != callBack.GetType()){throw new Exception(string.Format("尝试为事件{0}添加不同类型的委托，当前事件所对应的委托是{1}，" +"要添加的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}m_EventTable[eventType] = (CallBack)m_EventTable[eventType] + callBack;}public static void AddListener<T>(EventType eventType, CallBack<T> callBack){if (!m_EventTable.ContainsKey(eventType)){m_EventTable.Add(eventType, null);}Delegate d = m_EventTable[eventType];if (d != null && d.GetType() != callBack.GetType()){throw new Exception(string.Format("尝试为事件{0}添加不同类型的委托，当前事件所对应的委托是{1}，" +"要添加的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}m_EventTable[eventType] = (CallBack<T>)m_EventTable[eventType] + callBack;}public static void AddListener<T,X>(EventType eventType, CallBack<T, X> callBack){if (!m_EventTable.ContainsKey(eventType)){m_EventTable.Add(eventType, null);}Delegate d = m_EventTable[eventType];if (d != null && d.GetType() != callBack.GetType()){throw new Exception(string.Format("尝试为事件{0}添加不同类型的委托，当前事件所对应的委托是{1}，" +"要添加的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}m_EventTable[eventType] = (CallBack<T, X>)m_EventTable[eventType] + callBack;}/*** 移除监听* **/public static void RemoveListener(EventType eventType, CallBack callBack){if (m_EventTable.ContainsKey(eventType)){Delegate d = m_EventTable[eventType];if (d == null){throw new Exception(string.Format("移除监听错误: 事件(0}没有对应的委托", eventType));}else if (d.GetType() != callBack.GetType()){throw new Exception(string.Format("移除监听错误: 尝试为事件{0}移除不同类型的委托，当前委托类型为{1},要移除的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}}else{throw new Exception(string.Format("移除监听错误: 没有事件码{0}", eventType));}m_EventTable[eventType] = (CallBack)m_EventTable[eventType] - callBack;}public static void RemoveListener<T,X>(EventType eventType, CallBack<T, X> callBack){if (m_EventTable.ContainsKey(eventType)){Delegate d = m_EventTable[eventType];if (d == null){throw new Exception(string.Format("移除监听错误: 事件(0}没有对应的委托", eventType));}else if (d.GetType() != callBack.GetType()){throw new Exception(string.Format("移除监听错误: 尝试为事件{0}移除不同类型的委托，当前委托类型为{1},要移除的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}}else{throw new Exception(string.Format("移除监听错误: 没有事件码{0}", eventType));}m_EventTable[eventType] = (CallBack<T,X>)m_EventTable[eventType] - callBack;}public static void RemoveListener<T, X>(EventType eventType, CallBack<T> callBack){if (m_EventTable.ContainsKey(eventType)){Delegate d = m_EventTable[eventType];if (d == null){throw new Exception(string.Format("移除监听错误: 事件(0}没有对应的委托", eventType));}else if (d.GetType() != callBack.GetType()){throw new Exception(string.Format("移除监听错误: 尝试为事件{0}移除不同类型的委托，当前委托类型为{1},要移除的委托类型为{2}", eventType, d.GetType(), callBack.GetType()));}}else{throw new Exception(string.Format("移除监听错误: 没有事件码{0}", eventType));}m_EventTable[eventType] = (CallBack<T>)m_EventTable[eventType] - callBack;}/*** 广播监听* **/public static void Broadcast(EventType eventType){Delegate d;if (m_EventTable.TryGetValue(eventType, out d)){CallBack callBack = d as CallBack;if (callBack != null){callBack();}else{throw new Exception(string.Format("广播事件错误: 事件{0}对应委托具有不同的类型", eventType));}}}public static void Broadcast<T>(EventType eventType, T arg){Delegate d;if (m_EventTable.TryGetValue(eventType, out d)){CallBack<T> callBack = d as CallBack<T>;if (callBack != null){callBack(arg);}else{throw new Exception(string.Format("广播事件错误: 事件{0}对应委托具有不同的类型", eventType));}}}public static void Broadcast<T,X>(EventType eventType, T arg1, X arg2){Delegate d;if (m_EventTable.TryGetValue(eventType, out d)){CallBack<T,X> callBack = d as CallBack<T,X>;if (callBack != null){callBack(arg1, arg2);}else{throw new Exception(string.Format("广播事件错误: 事件{0}对应委托具有不同的类型", eventType));}}}
}