在 Unity 中使用资源文件夹

Q:

I have am developing a HoloLens project that needs to reference .txt files. I have the files stored in Unity’s ‘Resources’ folder and have them working perfectly fine (when run via Unity):
我正在开发一个 HoloLens 项目，需要引用 .txt 文件。我将文件存储在 Unity 的“资源”文件夹中，并且它们工作得很好（通过 Unity 运行时）：

string basePath = Application.dataPath;
string metadataPath = String.Format(@"\Resources\...\metadata.txt", list);

// If metadata exists, set title and introduction strings.
if (File.Exists(basePath + metadataPath))
{
      using (StreamReader sr = new StreamReader(new FileStream(basePath + metadataPath, FileMode.Open)))
    {
         ...
    }
}

However, when building the program for HoloLens deployment, I am able to run the code but it doesn’t work. None of the resources show up and when examining the HoloLens Visual Studio solution (created by selecting build in Unity), I don’t even see a resources or assets folder. I am wondering if I am doing something wrong or if there was a special way to deal with such resources.
但是，在构建 HoloLens 部署程序时，我可以运行代码，但它不起作用。没有显示任何资源，并且在检查 HoloLens Visual Studio 解决方案（通过选择 Unity 中的构建创建）时，我什至没有看到资源或资产文件夹。我想知道我是否做错了什么，或者是否有特殊的方法来处理这些资源。

Also with image and sound files…
还有图像和声音文件…

foreach (string str in im)
{
      spriteList.Add(Resources.Load<Sprite>(str));
}

The string ‘str’ is valid; it works absolutely fine with Unity. However, again, it’s not loading anything when running through the HoloLens.
字符串“str”有效；它与 Unity 配合得非常好。然而，再次强调，它在通过 HoloLens 运行时不会加载任何内容。

A:

You can’t read the Resources directory with the StreamReader or the File class. You must use Resources.Load.
您无法使用StreamReader或File类读取 Resources 目录。您必须使用Resources.Load 。

1.The path is relative to any Resources folder inside the Assets folder of your project.
1 .该路径相对于项目的 Assets 文件夹内的任何 Resources 文件夹。

2.Do not include the file extension names such as .txt, .png, .mp3 in the path parameter.
2 、路径参数中不要包含.txt 、 .png 、 .mp3等文件扩展名。

3.Use forward slashes instead of back slashes when you have another folder inside the Resources folder. backslashes won’t work.
3 .当Resources文件夹中有另一个文件夹时，请使用正斜杠而不是反斜杠。反斜杠不起作用。

Text files:
文本文件：

TextAsset txtAsset = (TextAsset)Resources.Load("textfile", typeof(TextAsset));
string tileFile = txtAsset.text;

Supported TextAsset formats:
支持的文本资源格式：

txt .html .htm .xml .bytes .json .csv .yaml .fnt
txt .html .htm .xml .bytes .json .csv .yaml .fnt

Sound files:
声音文件：

AudioClip audio = Resources.Load("soundFile", typeof(AudioClip)) as AudioClip;

Image files:
图像文件：

Texture2D texture = Resources.Load("textureFile", typeof(Texture2D)) as Texture2D;

Sprites – Single:
精灵 – 单：

Image with Texture Type set to Sprite (2D and UI) and
纹理类型设置为Sprite（2D 和 UI）的图像以及

Image with Sprite Mode set to Single.
精灵模式设置为Single 的图像。

Sprite sprite = Resources.Load("spriteFile", typeof(Sprite)) as Sprite;

Sprites – Multiple:
精灵 – 多个：

Image with Texture Type set to Sprite (2D and UI) and
纹理类型设置为Sprite（2D 和 UI）的图像以及

Image with Sprite Mode set to Multiple.
精灵模式设置为Multiple 的图像。

Sprite[] sprite = Resources.LoadAll<Sprite>("spriteFile") as Sprite[];

Video files (Unity >= 5.6):
视频文件（Unity >= 5.6） ：

VideoClip video = Resources.Load("videoFile", typeof(VideoClip)) as VideoClip;

GameObject Prefab:
游戏对象预制件：

GameObject prefab = Resources.Load("shipPrefab", typeof(GameObject)) as GameObject;

3D Mesh (such as FBX files)
3D 网格（例如 FBX 文件）

Mesh model = Resources.Load("yourModelFileName", typeof(Mesh)) as Mesh;

3D Mesh (from GameObject Prefab)
3D 网格（来自 GameObject Prefab）

MeshFilter modelFromGameObject = Resources.Load("yourGameObject", typeof(MeshFilter)) as MeshFilter;
Mesh loadedMesh = modelFromGameObject.sharedMesh; //Or   design.mesh

3D Model (as GameObject)  3D 模型（作为游戏对象）

GameObject loadedObj = Resources.Load("yourGameObject") as GameObject;
//MeshFilter meshFilter = loadedObj.GetComponent<MeshFilter>();
//Mesh loadedMesh = meshFilter.sharedMesh;

GameObject object1 = Instantiate(loadedObj) as GameObject;

Accessing files in a sub-folder:
访问子文件夹中的文件：

For example, if you have a shoot.mp3 file which is in a sub-folder called “Sound” that is placed in the Resources folder, you use the forward slash:
例如，如果您有一个shoot.mp3文件，该文件位于Resources文件夹中名为“ Sound ”的子文件夹中，则可以使用正斜杠：

AudioClip audio = Resources.Load("Sound/shoot", typeof(AudioClip)) as AudioClip;

Asynchronous Loading:
异步加载：

IEnumerator loadFromResourcesFolder()
{
    //Request data to be loaded
    ResourceRequest loadAsync = Resources.LoadAsync("shipPrefab", typeof(GameObject));

    //Wait till we are done loading
    while (!loadAsync.isDone)
    {
        Debug.Log("Load Progress: " + loadAsync.progress);
        yield return null;
    }

    //Get the loaded data
    GameObject prefab = loadAsync.asset as GameObject;
}

To use: StartCoroutine(loadFromResourcesFolder());
使用方法： StartCoroutine(loadFromResourcesFolder());