Ugui按钮事件添加方法

Eg1:
using UnityEngine;
using System.Collections;
using UnityEngine.Events;//引用事件命名空间
using UnityEngine.UI;//引用UI命名空间

public class Test : MonoBehaviour 
{
// Use this for initialization
void Start ()
{
//定义Action，并赋予delegate方法
UnityAction<Button> btnActions = new UnityAction<Button>(onClick);
//找到Button控件，并订阅事件
Button btn = gameObject.GetComponent<Button>();
btn.onClick.AddListener(btnActions);
}

void onClick(Object obj)
{
Debug.Log("button===========");
Debug.Log("button-----------" + obj.name);
}
}

Eg2:
Button btn = kid.GetComponent<Button>();
btn.onClick.AddListener(delegate()
{
this.Number(kid.name);
}
);

void Number（string name）{}
Eg3:
void Update(){
if (Input.GetMouseButtonDown(0) )
{
Debug.Log(EventSystem.current.gameObject.name);
if (EventSystem.current.IsPointerOverGameObject())
Debug.Log("当前触摸在UI上");

else Debug.Log("当前没有触摸在UI上");
}
}