In Unity3d How detect touch on UI or not?

Question

In make Unity3d mobile application. And I have a problem: How detect touch on UI or not?

I try this (but now work)

UnityEngine.EventSystems.EventSystem.current.IsPointerOverGameObject()

and this

private static List<RaycastResult> tempRaycastResults = new List<RaycastResult>();

public bool PointIsOverUI(float x, float y)
{
    var eventDataCurrentPosition = new PointerEventData(EventSystem.current);

    eventDataCurrentPosition.position = new Vector2(x, y);

    tempRaycastResults.Clear();

    EventSystem.current.RaycastAll(eventDataCurrentPosition, tempRaycastResults);

    return tempRaycastResults.Count > 0;
}

Answer 1

For mobile you need to pass the id of the Touch to IsPointerOverGameObject

foreach (Touch touch in Input.touches)
{
    int id = touch.fingerId;
    if (EventSystem.current.IsPointerOverGameObject(id))
    {
        // ui touched
    }
 }

Answer 2

Please try this :

// for Android check differently :

if(EventSystem.current.IsPointerOverGameObject(0) return false;

// for windows check as usual :

if (EventSystem.current.IsPointerOverGameObject())
return false;