UGUI检测按钮的按下,抬起,进入,退出

参考网址:https://blog.csdn.net/FransicZhang/article/details/78256753;

该方法需要挂载在button上,特殊情况下,才需要使用.比如,作为视频窗口的连接,鼠标悬浮时播放介绍视频等;

using System;

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.EventSystems;

public class Test1 : MonoBehaviour,IPointerDownHandler,IPointerUpHandler,IPointerClickHandler,IPointerEnterHandler,IPointerExitHandler

{

    private bool isPressBtn = false;//是否按下按钮

    public void OnPointerClick(PointerEventData eventData)//跟OnPointUp()效果一样

    {

        print("click!!!");

    }

    public void OnPointerEnter(PointerEventData eventData)//鼠标悬浮在按钮上面

    {

        print("enter!!!");

    }

    public void OnPointerExit(PointerEventData eventData)//鼠标离开按钮上面

    {

        print("exit!!!");

    }

    public void OnPointerUp(PointerEventData eventData)//点击按钮后抬起

    {

        isPressBtn = false;

        print("up!!!");

    }

    void IPointerDownHandler.OnPointerDown(PointerEventData eventData)//按下按钮

    {

        isPressBtn = true;

        print("down!!!");

    }

}