Unity determines whether the UI is clicked

    // Determine whether you have clicked UI On
    public bool IsPointerOverUIObject(Vector2 screenPosition) {
        PointerEventData eventDataCurrentPosition = new PointerEventData(EventSystem.current);
        eventDataCurrentPosition.position = new Vector2(screenPosition.x, screenPosition.y);
        List<RaycastResult> results = new List<RaycastResult>();
        EventSystem.current.RaycastAll(eventDataCurrentPosition, results);
        return results.Count > 0;
    }