添加背景图片后发现Runtime Transform Gizmo无法选中物体了:



  于是改了一下EditorObjectSelection.cs中的WereAnyUIElementsHovered函数：

private bool WereAnyUIElementsHovered()

{

    if (EventSystem.current == null) return false;

    Vector2 inputDevPos;

    if (!InputDevice.Instance.GetPosition(out inputDevPos)) return false;

    PointerEventData eventDataCurrentPosition = new PointerEventData(EventSystem.current);

    eventDataCurrentPosition.position = new Vector2(inputDevPos.x, inputDevPos.y);

    List<RaycastResult> results = new List<RaycastResult>();

    EventSystem.current.RaycastAll(eventDataCurrentPosition, results);

    //added by me

    int cnt = results.Count;

    foreach(var item in results)

    {

        if (item.gameObject.layer.Equals(Macro.BACKGROUND))

            cnt--;

    }

    return cnt != 0;

    //

    //return results.Count != 0;

}

  然后可以正常点击物体了：