java - AndEngine加载图形: Where Do I put my assets folder and my resources?

Question

在使用 AndEngine 和 Android Studio 创建游戏时，我将我的 Assets 文件夹放在项目的根级别。我还在其下创建了一个名为 gfx 的文件夹，并将我的 splash.png 放在那里。

当我调用启动画面时:

 public void loadSplashScreen()
{
    BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
    splashTextureAtlas = new BitmapTextureAtlas(activity.getTextureManager(), 390, 534, TextureOptions.BILINEAR);
    splash_region = BitmapTextureAtlasTextureRegionFactory.createFromAsset(splashTextureAtlas, activity, "splash.png", 0, 0);
    splashTextureAtlas.load();
}

这是产生的错误

我是不是放错地方了？ Assets 应该放在哪里？

     E/AndEngine﹕ Failed loading Bitmap in AssetBitmapTextureAtlasSource. AssetPath: gfx/splash.png
    java.io.FileNotFoundException: gfx/splash.png
            at android.content.res.AssetManager.openAsset(Native Method)
            at android.content.res.AssetManager.open(AssetManager.java:316)
            at android.content.res.AssetManager.open(AssetManager.java:290)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.create(AssetBitmapTextureAtlasSource.java:52)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.create(AssetBitmapTextureAtlasSource.java:43)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory.createFromAsset(BitmapTextureAtlasTextureRegionFactory.java:86)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory.createFromAsset(BitmapTextureAtlasTextureRegionFactory.java:82)
            at com.waylonhuang.game.ResourcesManager.loadSplashScreen(ResourcesManager.java:68)
            at com.waylonhuang.game.SceneManager.createSplashScene(SceneManager.java:93)
            at com.waylonhuang.game.GameActivity.onCreateScene(GameActivity.java:62)
            at org.andengine.ui.activity.BaseGameActivity$3.onCreateResourcesFinished(BaseGameActivity.java:171)
            at com.waylonhuang.game.GameActivity.onCreateResources(GameActivity.java:45)
            at org.andengine.ui.activity.BaseGameActivity.onCreateGame(BaseGameActivity.java:183)
            at org.andengine.ui.activity.BaseGameActivity.onSurfaceCreated(BaseGameActivity.java:112)
            at org.andengine.opengl.view.EngineRenderer.onSurfaceCreated(EngineRenderer.java:80)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1501)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
01-17 16:48:21.329  30718-30749/com.waylonhuang.game E/AndEngine﹕ Failed loading Bitmap in AssetBitmapTextureAtlasSource. AssetPath: gfx/splash.png
    java.io.FileNotFoundException: gfx/splash.png
            at android.content.res.AssetManager.openAsset(Native Method)
            at android.content.res.AssetManager.open(AssetManager.java:316)
            at android.content.res.AssetManager.open(AssetManager.java:290)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.onLoadBitmap(AssetBitmapTextureAtlasSource.java:101)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.onLoadBitmap(AssetBitmapTextureAtlasSource.java:85)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas.writeTextureToHardware(BitmapTextureAtlas.java:154)
            at org.andengine.opengl.texture.Texture.loadToHardware(Texture.java:145)
            at org.andengine.opengl.texture.TextureManager.updateTextures(TextureManager.java:268)
            at org.andengine.engine.Engine.onDrawFrame(Engine.java:633)
            at org.andengine.opengl.view.EngineRenderer.onDrawFrame(EngineRenderer.java:105)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1523)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
01-17 16:48:21.348  30718-30749/com.waylonhuang.game W/dalvikvm﹕ threadid=15: thread exiting with uncaught exception (group=0x41717d40)
01-17 16:48:21.349  30718-30749/com.waylonhuang.game E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 6799
    Process: com.waylonhuang.game, PID: 30718
    org.andengine.util.exception.NullBitmapException: Caused by: class org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource --> AssetBitmapTextureAtlasSource(gfx/splash.png) returned a null Bitmap.
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas.writeTextureToHardware(BitmapTextureAtlas.java:156)
            at org.andengine.opengl.texture.Texture.loadToHardware(Texture.java:145)
            at org.andengine.opengl.texture.TextureManager.updateTextures(TextureManager.java:268)
            at org.andengine.engine.Engine.onDrawFrame(Engine.java:633)
            at org.andengine.opengl.view.EngineRenderer.onDrawFrame(EngineRenderer.java:105)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1523)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
01-17 16:48:23.282  30718-30749/com.waylonhuang.game I/Process﹕ Sending signal. PID: 30718 SIG: 9
01-17 16:59:01.645    2098-2098/com.waylonhuang.game D/dalvikvm﹕ Late-enabling CheckJNI
01-17 16:59:02.020    2098-2098/com.waylonhuang.game I/Adreno-EGL﹕ <qeglDrvAPI_eglInitialize:410>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018_msm8226_LNX.LA.3.5.1_RB1__release_AU ()
    OpenGL ES Shader Compiler Version: E031.24.00.08
    Build Date: 03/07/14 Fri
    Local Branch:
    Remote Branch: quic/LNX.LA.3.5.1_RB1.1
    Local Patches: NONE
    Reconstruct Branch: AU_LINUX_ANDROID_LNX.LA.3.5.1_RB1.04.04.02.048.018 + f2fd134 +  NOTHING
01-17 16:59:02.052    2098-2098/com.waylonhuang.game D/OpenGLRenderer﹕ Enabling debug mode 0
01-17 16:59:02.087    2098-2119/com.waylonhuang.game E/AndEngine﹕ Failed loading Bitmap in AssetBitmapTextureAtlasSource. AssetPath: gfx/splash.png
    java.io.FileNotFoundException: gfx/splash.png
            at android.content.res.AssetManager.openAsset(Native Method)
            at android.content.res.AssetManager.open(AssetManager.java:316)
            at android.content.res.AssetManager.open(AssetManager.java:290)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.create(AssetBitmapTextureAtlasSource.java:52)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.create(AssetBitmapTextureAtlasSource.java:43)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory.createFromAsset(BitmapTextureAtlasTextureRegionFactory.java:86)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory.createFromAsset(BitmapTextureAtlasTextureRegionFactory.java:82)
            at com.waylonhuang.game.ResourcesManager.loadSplashScreen(ResourcesManager.java:68)
            at com.waylonhuang.game.SceneManager.createSplashScene(SceneManager.java:93)
            at com.waylonhuang.game.GameActivity.onCreateScene(GameActivity.java:62)
            at org.andengine.ui.activity.BaseGameActivity$3.onCreateResourcesFinished(BaseGameActivity.java:171)
            at com.waylonhuang.game.GameActivity.onCreateResources(GameActivity.java:45)
            at org.andengine.ui.activity.BaseGameActivity.onCreateGame(BaseGameActivity.java:183)
            at org.andengine.ui.activity.BaseGameActivity.onSurfaceCreated(BaseGameActivity.java:112)
            at org.andengine.opengl.view.EngineRenderer.onSurfaceCreated(EngineRenderer.java:80)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1501)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
01-17 16:59:02.106    2098-2119/com.waylonhuang.game E/AndEngine﹕ Failed loading Bitmap in AssetBitmapTextureAtlasSource. AssetPath: gfx/splash.png
    java.io.FileNotFoundException: gfx/splash.png
            at android.content.res.AssetManager.openAsset(Native Method)
            at android.content.res.AssetManager.open(AssetManager.java:316)
            at android.content.res.AssetManager.open(AssetManager.java:290)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.onLoadBitmap(AssetBitmapTextureAtlasSource.java:101)
            at org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource.onLoadBitmap(AssetBitmapTextureAtlasSource.java:85)
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas.writeTextureToHardware(BitmapTextureAtlas.java:154)
            at org.andengine.opengl.texture.Texture.loadToHardware(Texture.java:145)
            at org.andengine.opengl.texture.TextureManager.updateTextures(TextureManager.java:268)
            at org.andengine.engine.Engine.onDrawFrame(Engine.java:633)
            at org.andengine.opengl.view.EngineRenderer.onDrawFrame(EngineRenderer.java:105)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1523)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
01-17 16:59:02.110    2098-2119/com.waylonhuang.game W/dalvikvm﹕ threadid=15: thread exiting with uncaught exception (group=0x41717d40)
01-17 16:59:02.111    2098-2119/com.waylonhuang.game E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 7084
    Process: com.waylonhuang.game, PID: 2098
    org.andengine.util.exception.NullBitmapException: Caused by: class org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource --> AssetBitmapTextureAtlasSource(gfx/splash.png) returned a null Bitmap.
            at org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas.writeTextureToHardware(BitmapTextureAtlas.java:156)
            at org.andengine.opengl.texture.Texture.loadToHardware(Texture.java:145)
            at org.andengine.opengl.texture.TextureManager.updateTextures(TextureManager.java:268)
            at org.andengine.engine.Engine.onDrawFrame(Engine.java:633)
            at org.andengine.opengl.view.EngineRenderer.onDrawFrame(EngineRenderer.java:105)
            at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1523)
            at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)

Answer 1

您必须在路径 app/src/main/中创建“assets”文件夹，并将带有 splash.png 的“gfx”文件夹放入其中