Capricorn|Unity3d UGUI屏蔽点击按钮穿透事件

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections.Generic;

public class UITouchEvents : MonoBehaviour
{

    public EventSystem eventSystem;
    public GraphicRaycaster graphicRaycaster;
    static UITouchEvents uie;
    private PointerEventData eventData;
    private List<RaycastResult> list = new List<RaycastResult> ();
   

    public static UITouchEvents Instance {

        get {


            if (null == uie) {
            
                uie = FindObjectOfType (typeof(UITouchEvents)) as UITouchEvents;
            }

            return uie;

        }

    }

    // Use this for initialization
    void Start ()
    {
        eventData = new PointerEventData (eventSystem);


    }

    public bool CheckGuiRaycastObjects ()
    {

        list.Clear ();
        eventData.pressPosition = Input.mousePosition;
        eventData.position = Input.mousePosition;

        graphicRaycaster.Raycast (eventData, list);
   
        Debug.Log ("CheckUGUIOBJ" + ":" + list.Count + "---------------------");

        return list.Count > 0;
    }



}

在容易穿透的地方调用
CheckGuiRaycastObjects ()函数判断返回值如果true就说明穿透了