让新场景的孩子们(Get Children of New Scene)

 我有一个GameManager脚本，它管理加载场景，在场景中放置角色，从游戏对象中读取地图信息等等。 GameManager脚本设置为DontDestroyOnLoad 。 
 
 我试图弄清楚如何在加载新场景后从GameManager访问我的新场景中的对象。 我正在使用SceneManager.sceneLoaded事件来运行我的“场景初始化”代码。 这是事件处理程序： 
 
 void OnLevelFinishedLoading(Scene scene, LoadSceneMode mode)
 { 
    // I want to access GameObjects within the newly loaded scene here
    //
    // SceneManager.GetActiveScene().GetRootGameObjects() returns               
    // System.ArgumentException: the scene is not loaded

    // I want to do something like this
    foreach (MapFeature mapFeature in rootObject.GetComponentsInChildren<MapFeature>())
    {
       // Do something
    }
 }
 
 我想获得新场景的根级GetComponentInChildren ，然后在该根对象上使用GetComponentInChildren ，以便动态地抓取场景中的各种组件并将它们存储在GameManager 。 但是， SceneManager.GetActiveScene().GetRootGameObjects()返回System.ArgumentException: the scene is not loaded 
 
 如何在GameManager从新加载的场景中获取对象？ 如果有一个比获得新场景的根对象更好的方法并使用它来获取它的孩子，我会全神贯注。 

I have a GameManager script which manages loading scenes, putting characters in the scene, reading map information from game objects, and so on. The GameManager script is set to DontDestroyOnLoad.
 
I'm trying to figure out how to access objects within my new scene from GameManager after a new scene loads. I'm using the SceneManager.sceneLoaded event to run my "scene initialization" code. Here's the event handler:
 
 void OnLevelFinishedLoading(Scene scene, LoadSceneMode mode)
 { 
    // I want to access GameObjects within the newly loaded scene here
    //
    // SceneManager.GetActiveScene().GetRootGameObjects() returns               
    // System.ArgumentException: the scene is not loaded

    // I want to do something like this
    foreach (MapFeature mapFeature in rootObject.GetComponentsInChildren<MapFeature>())
    {
       // Do something
    }
 }
 
I'm want to get the root level GameObject of the new scene, and then use GetComponentInChildren on that root object in order to dynamically grab various components in the scene and store them in GameManager. However, SceneManager.GetActiveScene().GetRootGameObjects() returns System.ArgumentException: the scene is not loaded
 
How do I get objects from my newly loaded scene within my GameManager? If there's a better method than getting the new scene's root object and using that to get its children, I'm all ears.

原文：