void Start(){var trigger = transform.gameObject.GetComponent<EventTrigger>();if (trigger == null)trigger = transform.gameObject.AddComponent<EventTrigger>();// 实例化delegatestrigger.triggers = new List<EventTrigger.Entry>();// 定义需要绑定的事件类型。并设置回调函数EventTrigger.Entry entry = new EventTrigger.Entry();// 设置 事件类型entry.eventID = EventTriggerType.PointerClick;// 设置回调函数entry.callback = new EventTrigger.TriggerEvent();UnityAction<BaseEventData> callback = new UnityAction<BaseEventData>(OnScriptControll);entry.callback.AddListener(callback);// 添加事件触发记录到GameObject的事件触发组件
        trigger.triggers.Add(entry);}

using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Events;public class UGUIEventListener : EventTrigger
{public UnityAction<GameObject> onClick;//可以重载EventTrigger的其他虚方法来实现点击拖动等事件public override void OnPointerClick(PointerEventData eventData){base.OnPointerClick(eventData);if(onClick != null){onClick(gameObject);}}public static UGUIEventListener Get(GameObject go){UGUIEventListener listener = go.GetComponent<UGUIEventListener>();if (!listener)listener = go.AddComponent<UGUIEventListener>();return listener;}
}

using UnityEngine;
using UnityEngine.UI;public class UGUIButtonClick : MonoBehaviour
{public Text textTitle;public Image imageTitle;private void Awake(){UGUIEventListener.Get(textTitle.gameObject).onClick = OnClick;UGUIEventListener.Get(imageTitle.gameObject).onClick = OnClick;}void OnClick(GameObject go){if(go == textTitle.gameObject){Debug.Log("Text clicked");}else if(go == imageTitle.gameObject){Debug.Log("Image clicked");}}
}