第一種方法

using UnityEngine.EventSystems;

public GameObject ClickObject()
    {
        PointerEventData eventDataCurrentPosition = new PointerEventData(EventSystem.current);
        eventDataCurrentPosition.position = new Vector2
            (
#if UNITY_EDITOR
            Input.mousePosition.x, Input.mousePosition
 
.y
#elif UNITY_ANDROID || UNITY_IOS
           Input.touchCount > 0 ? Input.GetTouch(0).position.x : 0, Input.touchCount > 0 ? Input.GetTouch(0).position.y : 0
#endif 
            );
        List<RaycastResult> results = new List<RaycastResult>();
        EventSystem.current.RaycastAll(eventDataCurrentPosition, results);
 

        if (results.Count > 0)
        {
            return results[0].gameObject;
        }
        else
        {
            return null;
        }
    }

第二種方法

using UnityEngine.EventSystems;

public class NewBehaviourScript : MonoBehaviour, IPointerClickHandler
{

    public void OnPointerClick
 
(PointerEventData eventData)
    {
        print("當前點選的UI是："+ eventData.pointerEnter);
    }
}