Unity获取canvas 下ui 在屏幕中的实际坐标

    /// <summary>
    ///获取UI的UI坐标
    /// </summary>
    /// <param name="targetWordPos"></param>
    /// <returns></returns>
    public static Vector2 GetUGUIForScreenPos(Vector3 targetWordPos)
    {
        Vector2 screenPoint = RectTransformUtility.WorldToScreenPoint(Camera.main, targetWordPos);
        Vector2 localPoint;
        RectTransformUtility.ScreenPointToLocalPointInRectangle(GameObject.Find("Canvas").GetComponent<RectTransform>(), screenPoint, Camera.main, out localPoint);
        return localPoint;
    }