射线检测 UGUI UI点击穿透问题

1.首先检测是否点击到UI

public static bool IsPointerOverUIObject()//检测是否点击到ui
    {
        if (EventSystem.current != null)
        {
            PointerEventData eventData = new PointerEventData(EventSystem.current);
            eventData.position = new Vector2(Input.mousePosition.x, Input.mousePosition.y);
            List<RaycastResult> result = new List<RaycastResult>();
            EventSystem.current.RaycastAll(eventData, result);
            return result.Count > 0;
        }
        return false;
    }

2.点击到UI之后判断是否需要点击到3D场景

 if (IsPointerOverUIObject() != false)
 {
     //to do
 }
 else
 {
     //to do
 }

备用

PointerEventData eventData = new PointerEventData(EventSystem.current);
eventData.position = new Vector2(Input.mousePosition.x, Input.mousePosition.y);
List<RaycastResult> result = new List<RaycastResult>();
EventSystem.current.RaycastAll(eventData,result);
 
for (int i = 0; i < result.Count; i++)
{
       print(result[i].gameObject.name);
}