MRTK V2 - 如何访问接收器？

Question

在我的场景开始时，我设置了我所有的 OnClick 和 OnFocus 侦听器（您可以在本 post 末尾的代码片段中看到）。当我使用给定的 mrtk-prefab-buttons 时，它们上面有 Interactable 脚本，Receivers 下已经有一个 InteractableOnFocusReceiver，您在下面的屏幕截图中看到。

我的问题：
通过添加接收器（通过下面的代码），一切正常，但我收到这些消息：

我猜这是因为已经有一个 OnFocusReceiver 而我正在添加另一个，或者我缺少一些额外的 data/component。所以我试图以某种方式访问已经存在的 OnFocusReceiver，但找不到实现该目标的方法。尝试 comp.GetReceiver<InteractableOnFocusReceiver>(); 给了我 null，即使在统一编辑器中我看到了 OnFocusReceiver。 某人知道如何访问此接收器以便我可以向其添加另一个触发方法吗？

public static void ManageListenerForFocus(
    bool addReceiver, 
    Interactable comp, 
    Listener methodForFocusEnter, 
    Listener methodForFocusExit)
{
    var onFocusReceiver = comp.AddReceiver<InteractableOnFocusReceiver>();

    if (addReceiver)
    {
        onFocusReceiver.OnFocusOn.AddListener(() => methodForFocusEnter(comp));
        onFocusReceiver.OnFocusOff.AddListener(() => methodForFocusExit(comp));
    }
    else
    {
        onFocusReceiver.OnFocusOn.RemoveListener(() => methodForFocusEnter(comp));
        onFocusReceiver.OnFocusOff.RemoveListener(() => methodForFocusExit(comp));
    }
}

public static void ManageListenerForClicks(
    bool addListener,
    Interactable comp,
    UnityAction actionForOnClick)
{
    if (addListener)
        comp.OnClick.AddListener(actionForOnClick);
    else
        comp.OnClick.RemoveListener(actionForOnClick);
}

Answer 1

要在运行时为 OnFocusReceiver 添加一个方法，您只需要为现有的接收器添加一个侦听器：

    var onFocusReceiver = gameObject.GetComponent<Interactable>().GetReceiver<InteractableOnFocusReceiver>();
    onFocusReceiver.OnFocusOn.AddListener(() => Debug.Log("ONtest"));
    onFocusReceiver.OnFocusOff.AddListener(() => Debug.Log("OFFtest"));

MRTK V2 - 如何访问接收器？

MRTK V2 - How to access Receivers?

unity3d

augmented-reality

hololens

mrtk