public static void AddAnchoredPosition(this RectTransform rect, Vector2 vec)
 {
     rect.AddAnchoredPosition(vec.x, vec.y);
 }
 /// <summary>
 ///
 /// </summary>
 /// <param name="value"></param>
 public static void AddAnchoredPositionY(this RectTransform trans, float value)
 {
     trans.AddAnchoredPosition(0, value);
 }