Android Libgdx:未找到文件错误'；内部'；打开外部文件时

这是给你的一个好的

我正在尝试使用外部文件打开一个文件

FileHandle dirHandel = Gdx.files.external("MyApps/skanectModel.g3db");
boolean isDir = Gdx.files.external("MyApps/skanectModel.g3db").exists();

我知道文件就在那里，而bool告诉我事实上它就在那里

主要的问题是我得到了这个错误

Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Error reading file: MyApps/skanectModel.png (Internal)

我不知道为什么要这么做，我不是在找内部文件

出于好奇，我在我的资产文件夹中创建了这个文件，就像这样

assets/MyApps/skanetmodel.png

，代码运行完美，而且这个应用程序也可以在我的android上播放

但是。。。我需要能够阅读外部信息。我正在为一些朋友构建一个简单的3D查看器，我会时不时地向他们发送3D模型

以下是代码的副本：

package com.mygdx.game;

import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.loaders.ModelLoader;
import com.badlogic.gdx.Files;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.graphics.g3d.Environment;
import com.badlogic.gdx.graphics.g3d.Model;

import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.graphics.g3d.attributes.ColorAttribute;
import com.badlogic.gdx.graphics.g3d.environment.DirectionalLight;
import com.badlogic.gdx.graphics.g3d.loader.G3dModelLoader;
import com.badlogic.gdx.graphics.g3d.loader.ObjLoader;
import com.badlogic.gdx.graphics.g3d.utils.CameraInputController;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.utils.UBJsonReader;

public class MyGdxGame implements ApplicationListener {
    public Environment environment;
    public PerspectiveCamera cam;
    public CameraInputController camController;
    public ModelBatch modelBatch;
    public Model model;
    public ModelInstance instance;

@Override
public void create() {
    environment = new Environment();
    environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 1.4f, 1.4f, 1.4f, 5f));
    environment.add(new DirectionalLight().set(0.8f, 0.8f, 0.8f, -1f, -0.8f, -0.2f));

    cam = new PerspectiveCamera(75,Gdx.graphics.getWidth(),Gdx.graphics.getHeight());
    cam.position.set(50f, 1f, 50f);
    cam.lookAt(0,0,0);
    cam.near = 0.1f;
    cam.far = 500f;
    cam.update();

    modelBatch = new ModelBatch();
//      ModelLoader<?> loader = new ObjLoader();
    UBJsonReader jsonReader = new UBJsonReader();
    G3dModelLoader modelLoader = new G3dModelLoader(jsonReader);

//      model = modelLoader.loadModel(Gdx.files.getFileHandle("root/MyApps/skanectModel.g3db",Files.FileType.Absolute));
//      model = modelLoader.loadModel(Gdx.files.getFileHandle("skanectModel.g3db",Files.FileType.External));

    FileHandle dirHandel = Gdx.files.external("MyApps/skanectModel.g3db");
    boolean isDir = Gdx.files.external("MyApps/skanectModel.g3db").exists();
    Gdx.app.log("is it", String.valueOf(isDir));
//      for (FileHandle entry: dirHandel.list()){
//          Gdx.app.log("Path",entry.toString());
//      }
    model = modelLoader.loadModel(dirHandel);
//      model = modelLoader.loadModel(Gdx.files.getFileHandle("skanectModel.g3db",Files.FileType.External));
    instance = new ModelInstance(model);
    instance.transform.rotate(90f,0f,0,-90f);


    camController = new CameraInputController(cam);
    Gdx.input.setInputProcessor(camController);
}

@Override
public void render() {
    camController.update();

    Gdx.gl.glViewport(0,0,Gdx.graphics.getWidth(),Gdx.graphics.getHeight());
    Gdx.gl.glClearColor(.5f,1,1,1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);

    modelBatch.begin(cam);
    modelBatch.render(instance, environment);
    modelBatch.end();
}

@Override
public void dispose() {
    modelBatch.dispose();
    model.dispose();
}

@Override
    public void resize(int width, int height) {
}

@Override
    public void pause() {
}

@Override
    public void resume() {
}
}

从他们的维基

外部文件路径相对于Android上的SD卡根目录和桌面系统上当前用户的主目录

及

本地文件相对于桌面上应用程序的根目录或工作目录以及Android上应用程序的内部（私有）存储进行存储。请注意，本地和内部在桌面上基本相同

---

因此，如果文件位于项目根目录中，则应使用本地文件而不是外部文件。您可以提供更多的信息，比如测试平台。

仔细查看堆栈跟踪后，似乎模型文件本身已正确加载

加载模型的纹理时会出现问题：

在 com.badlogic.gdx.backends.android.AndroidFileHandle.read（AndroidFileHandle.java:75） 位于com.badlogic.gdx.files.FileHandle.readBytes（FileHandle.java:222） com.badlogic.gdx.graphics.Pixmap.（Pixmap.java:137）位于 com.badlogic.gdx.graphics.TextureData$Factory.loadFromFile（TextureData.java:98） 位于com.badlogic.gdx.graphics.Texture.（Texture.java:100） com.badlogic.gdx.graphics.Texture.（Texture.java:92）位于 com.badlogic.gdx.graphics.g3d.utils.TextureProvider$FileTextureProvider.load（TextureProvider.java:34） 位于com.badlogic.gdx.graphics.g3d.Model.convertMaterial（Model.java:290） 位于com.badlogic.gdx.graphics.g3d.Model.loadMaterials（Model.java:266）

我认为libGDX试图从错误的位置加载纹理文件（内部位置，解释了错误）

我从未使用过libDGX模型函数，但我认为您应该使用以下方法：

并传入从外部文件夹加载纹理文件的

TextureProvider

。（并确保纹理文件在那里）

---

通过查看。

感谢您的重播，应该很容易实现一个定制的

TextureProvider

，它可以做到这一点。我非常了解libgdx的文件处理。但我试图使用外部文件“root”从android加载模型，但libgdx一直在内部查找纹理，而不是在外部文件的同一目录中。请阅读我原来的帖子，以便更好地了解这是怎么回事。如果可以的话，我现在就吻你。。。。！！！工作起来很有魅力。我就是这样做的：FileHandle dirHandel=Gdx.files.external（“MyApps/skanetmodel.g3db”）；myT=new TextureProvider（）{@Override public Texture load（字符串文件名）{Texture result=new Texture（Gdx.files.external（文件名））；result.setFilter（Texture.TextureFilter.Linear，Texture.TextureFilter.Linear）；result.setWrap（Texture.TextureWrap.Repeat，Texture.TextureWrap.Repeat）；返回结果；}；myT.load（“Myapps/skanetmodel.png”）；model=modelLoader.loadModel（迪汉德尔，myT）；是的，我也花了一段时间才明白这是一个纹理问题。顺便说一句，这行什么也不做，可以删除：

myT.load（“Myapps/skanetmodel.png”）。加载在ModelLoader上进行内部调用。不过，不要接吻
06-20 10:00:47.918    3205-3221/com.mygdx.game.android E/AndroidRuntime﹕    FATAL EXCEPTION: GLThread 39207
Process: com.mygdx.game.android, PID: 3205
com.badlogic.gdx.utils.GdxRuntimeException: Couldn't load file:MyApps/skanectModel.png
at com.badlogic.gdx.graphics.Pixmap.<init>(Pixmap.java:140)
at com.badlogic.gdx.graphics.TextureData$Factory.loadFromFile(TextureData.java:98)  at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:100) 
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:92)
at com.badlogic.gdx.graphics.g3d.utils.TextureProvider$FileTextureProvider.load(TextureProvider.java:34) 
at com.badlogic.gdx.graphics.g3d.Model.convertMaterial(Model.java:290)
at com.badlogic.gdx.graphics.g3d.Model.loadMaterials(Model.java:266)
at com.badlogic.gdx.graphics.g3d.Model.load(Model.java:107)
at com.badlogic.gdx.graphics.g3d.Model.<init>(Model.java:102)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:54)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:69)
at com.mygdx.game.MyGdxGame.create(MyGdxGame.java:65)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:241)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Error reading file: MyApps/skanectModel.png (Internal)
at com.badlogic.gdx.backends.android.AndroidFileHandle.read(AndroidFileHandle.java:77)
at com.badlogic.gdx.files.FileHandle.readBytes(FileHandle.java:222)
at com.badlogic.gdx.graphics.Pixmap.<init>(Pixmap.java:137)
at com.badlogic.gdx.graphics.TextureData$Factory.loadFromFile(TextureData.java:98)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:100)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:92)
at com.badlogic.gdx.graphics.g3d.utils.TextureProvider$FileTextureProvider.load(TextureProvider.java:34)
at com.badlogic.gdx.graphics.g3d.Model.convertMaterial(Model.java:290)
at com.badlogic.gdx.graphics.g3d.Model.loadMaterials(Model.java:266)
at com.badlogic.gdx.graphics.g3d.Model.load(Model.java:107)
at com.badlogic.gdx.graphics.g3d.Model.<init>(Model.java:102)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:54)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:69)
at com.mygdx.game.MyGdxGame.create(MyGdxGame.java:65)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:241)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
Caused by: java.io.FileNotFoundException: MyApps/skanectModel.png
at android.content.res.AssetManager.openAsset(Native Method)
at android.content.res.AssetManager.open(AssetManager.java:324)
at android.content.res.AssetManager.open(AssetManager.java:298)
at com.badlogic.gdx.backends.android.AndroidFileHandle.read(AndroidFileHandle.java:75)
at com.badlogic.gdx.files.FileHandle.readBytes(FileHandle.java:222)
at com.badlogic.gdx.graphics.Pixmap.<init>(Pixmap.java:137)
at com.badlogic.gdx.graphics.TextureData$Factory.loadFromFile(TextureData.java:98)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:100)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:92)
at com.badlogic.gdx.graphics.g3d.utils.TextureProvider$FileTextureProvider.load(TextureProvider.java:34)
at com.badlogic.gdx.graphics.g3d.Model.convertMaterial(Model.java:290)
at com.badlogic.gdx.graphics.g3d.Model.loadMaterials(Model.java:266)
at com.badlogic.gdx.graphics.g3d.Model.load(Model.java:107)
at com.badlogic.gdx.graphics.g3d.Model.<init>(Model.java:102)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:54)
at com.badlogic.gdx.assets.loaders.ModelLoader.loadModel(ModelLoader.java:69)
at com.mygdx.game.MyGdxGame.create(MyGdxGame.java:65)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphi cs.java:241)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)

FileHandle dirHandel = Gdx.files.external("MyApps/skanectModel.g3db");
myT = new TextureProvider() {
@Override
public Texture load(String fileName) {
Texture result = new Texture(Gdx.files.external(fileName));
result.setFilter(Texture.TextureFilter.Linear, Texture.TextureFilter.Linear);
result.setWrap(Texture.TextureWrap.Repeat, Texture.TextureWrap.Repeat);
return result;
  }
};
myT.load("Myapps/skanectModel.png");
model = modelLoader.loadModel(dirHandel,myT);