Unity判断鼠标是否在UI(UGUI)上

 1 #if UNITY_ANDROID && !UNITY_EDITOR
 2 #define ANDROID
 3 #endif
 4  
 5  
 6 #if UNITY_IPHONE && !UNITY_EDITOR
 7 #define IPHONE
 8 #endif
 9  
10  
11  
12 using UnityEngine;
13 using UnityEngine.UI;
14 using System.Collections;
15 using UnityEngine.EventSystems;
16 public class NewBehaviourScript : MonoBehaviour {
17  
18     // Use this for initialization
19     void Start () {
20     
21     }
22     
23  
24     void Update()
25     {
26         if (Input.GetMouseButtonDown(0)||(Input.touchCount >0 && Input.GetTouch(0).phase == TouchPhase.Began))
27         {
28 #if IPHONE || ANDROID
29             if (EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId))
30 #else
31             if (EventSystem.current.IsPointerOverGameObject())
32 #endif
33                 Debug.Log("当前触摸在UI上");
34             
35             else 
36                 Debug.Log("当前没有触摸在UI上");
37         }
38     }
39 }