LibGDX 无法访问内部图片资源

Question

我明明把我的"background.png"存放在android下的assets文件夹里。我还检查了它在 Finder 中。

我正在使用 Android Studio。

但是，在尝试访问图像时：

public Background() {
    textureRegion = new TextureRegion(new Texture("background.png"));
    textureRegionBounds1 = new Rectangle(0 - Constants.APP_WIDTH / 2, 0, Constants.APP_WIDTH, Constants.APP_HEIGHT);
    textureRegionBounds2 = new Rectangle(Constants.APP_WIDTH / 2, 0, Constants.APP_WIDTH, Constants.APP_HEIGHT);
}

我收到这个错误：

Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRuntimeException: Couldn't load file: background.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.GLTexture.createTextureData(GLTexture.java:185)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:103)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:95)
at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:91)
at com.com.waylonhuang.game.actors.Background.<init>(Background.java:21)
at com.com.waylonhuang.game.stages.GameStage.setUpBackground(GameStage.java:66)
at com.com.waylonhuang.game.stages.GameStage.setUpWorld(GameStage.java:59)
at com.com.waylonhuang.game.stages.GameStage.<init>(GameStage.java:51)
at com.mygdx.game.GameScreen.<init>(GameScreen.java:16)
at com.mygdx.game.DrifterGame.create(DrifterGame.java:11)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:137)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.run(LwjglApplication.java:114)
Caused by: com.badlogic.gdx.utils.GdxRuntimeException: File not found: background.png (Internal)
    at com.badlogic.gdx.files.FileHandle.read(FileHandle.java:136)
    at com.badlogic.gdx.files.FileHandle.readBytes(FileHandle.java:222)
    at com.badlogic.gdx.graphics.Pixmap.<init>(Pixmap.java:137)
    ... 13 more......

我错过了什么？

编辑另外，我当前的工作目录桌面启动器路径是：AndroidStudioProjects/libGDXGame

但是，将其更改为：AndroidStudioProjects/libGDXGame/android/assets

我收到这样的新错误：

Exception in thread "LWJGL Application" java.lang.NullPointerException
at com.com.waylonhuang.game.stages.GameStage.draw(GameStage.java:134)
at com.mygdx.game.GameScreen.render(GameScreen.java:25)
at com.badlogic.gdx.Game.render(Game.java:46)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:208)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.run(LwjglApplication.java:114)

Answer 1

尝试使用这个：

textureRegion = new TextureRegion(new Texture(
                Gdx.files.internal("background.png")));

如果不起作用，请检查文件名，区分大小写。

编辑：看那个是文件的副本，不是link，有一次他碰巧有人错了

Answer 2

您不应直接在构造函数中加载资产，因为 Gdx.files 为空。要么在构造函数之外加载资产，要么使用 AssetsManager.

LibGDX 无法访问内部图片资源

LibGDX can't access internal image resources

java

oop

android

libgdx

android-studio