| pointerId | Pointer (touch / mouse) ID. |
Is the pointer with the given ID over an EventSystem object?
using UnityEngine; using System.Collections; using UnityEngine.EventSystems;
public class MouseExample : MonoBehaviour { void Update() { // Check if the left mouse button was clicked if (Input.GetMouseButtonDown(0)) { // Check if the mouse was clicked over a UI element if (EventSystem.current.IsPointerOverGameObject()) { Debug.Log("Clicked on the UI"); } } } }
If you use IsPointerOverGameObject() without a parameter, it points to the "left mouse button" (pointerId = -1); therefore when you use IsPointerOverGameObject for touch, you should consider passing a pointerId to it.
using UnityEngine; using System.Collections; using UnityEngine.EventSystems;
public class TouchExample : MonoBehaviour { void Update() { // Check if there is a touch if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began) { // Check if finger is over a UI element if (EventSystem.current.IsPointerOverGameObject(Input.GetTouch(0).fingerId)) { Debug.Log("Touched the UI"); } } } }
Note that for touch, IsPointerOverGameObject should be used with OnMouseDown() or Input.GetMouseButtonDown(0) or Input.GetTouch(0).phase == TouchPhase.Began.
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