java - BitmapTextureAtlasTextureRegionFactory.createFromAsset 崩溃

Question

几个月前我看过 andengine，并且成功地利用它做了一些东西。现在我下载了最新版本，但我遇到了最简单的事情崩溃。这是我的代码

package francesco.mygame;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.options.EngineOptions;
import org.anddev.andengine.engine.options.EngineOptions.ScreenOrientation;
import org.anddev.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.entity.scene.background.ColorBackground;
import org.anddev.andengine.entity.sprite.Sprite;
import org.anddev.andengine.entity.util.FPSLogger;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;
import org.anddev.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;
import org.anddev.andengine.opengl.texture.region.TextureRegion;
import org.anddev.andengine.ui.activity.BaseGameActivity;



public class mainMenu extends BaseGameActivity 
{

// ===========================================================

// Constants

// ===========================================================
static final int CAMERA_WIDTH = 480;

static final int CAMERA_HEIGHT = 320;



//private static final String TAG = "Main Menu";


// ===========================================================

// Fields

// ===========================================================

protected Camera mCamera;  
protected BitmapTextureAtlas mTexture;
protected TextureRegion mPlayTexture;
protected Sprite mPlaySprite;
protected Sprite mQuitSprite;
protected TextureRegion mQuitTexture;
protected Scene mMainScene;

// ===========================================================

// Constructors

// ===========================================================



// ===========================================================

// Getter & Setter

// ===========================================================



// ===========================================================

// Methods for/from SuperClass/Interfaces

// ===========================================================



@Override

public void onLoadComplete() 
{

// TODO Auto-generated method stub


}



@Override

public Engine onLoadEngine() 
{

    this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);

    return new Engine(new EngineOptions(true, ScreenOrientation.LANDSCAPE, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));

}



@Override

public void onLoadResources() 
{
    BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");

    this.mTexture = new BitmapTextureAtlas(64, 128, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
    this.mPlayTexture = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mTexture, this, "play.png", 0, 0);
    this.mQuitTexture = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mTexture, this, "quit.png", 0, 40);

    this.mEngine.getTextureManager().loadTexture(this.mTexture);

}



@Override

public Scene onLoadScene() 
{

    this.mEngine.registerUpdateHandler(new FPSLogger());
    this.mMainScene = new Scene();
    this.mMainScene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));

    int play_x = (CAMERA_WIDTH + this.mPlayTexture.getWidth() )/2 ;
    int play_y = (CAMERA_HEIGHT + this.mPlayTexture.getHeight())/2 - this.mPlayTexture.getHeight();
    this.mPlaySprite = new Sprite( play_x, play_y, this.mPlayTexture);

    int quit_x = (CAMERA_WIDTH + this.mQuitTexture.getWidth() )/2 ;
    int quit_y = (CAMERA_HEIGHT + this.mQuitTexture.getHeight())/2 + this.mQuitTexture.getHeight();
    this.mQuitSprite = new Sprite(quit_x, quit_y, this.mQuitTexture);

    this.mMainScene.attachChild(mPlaySprite);
    this.mMainScene.attachChild(mQuitSprite);

    return this.mMainScene;

}



// ===========================================================

// Methods

// ===========================================================



// ===========================================================

// Inner and Anonymous Classes

// =========================================================== 

}

(通常是良好缩进)

logCat 错误为

在 AssetBitMapTextureAtlasSource 中加载位图失败。资源路径:gfx/play.png

java.io.FileNoFoundException:gfx/play.png

但是我将 2 个图像放入文件夹中，然后将它们添加到项目中，就像我第一次尝试 andengine 时所做的那样(并且它有效)。所以我真的不明白问题出在哪里..

图像是用 gimp 创建的 2 个 png(一个是 57x36，另一个是 58x31)。

Answer 1

如果找不到文件，将抛出java.io.FileNoFoundException - 因此除了引擎找不到图像之外没有其他可能性。

确保您的图像位于:assets/gfx/ 中，而不仅仅是位于名为 gfx/ 的文件夹中。