andengine背景

public EngineOptions onCreateEngineOptions() {
// TODO 自动生成的方法存根
mCamera = new Camera(0,0,CAMERA_WIDTH,CAMERA_HEIGHT);
EngineOptions mEngineOptions = new EngineOptions(true,
ScreenOrientation.LANDSCAPE_FIXED,
new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT),
mCamera);
return mEngineOptions;
}
@Override
public void onCreateResources(OnCreateResourcesCallback
pOnCreateResourcesCallback)
throws Exception {
// TODO 自动生成的方法存根
this.background = new RepeatingSpriteBackground(CAMERA_WIDTH,
CAMERA_HEIGHT,  
     
     
  getTextureManager(),
AssetBitmapTextureAtlasSource.create(  
   this.getAssets(),
"background.jpg"),
 //getAsset，从asset文件夹里获取background图片
 
 getVertexBufferObjectManager());
pOnCreateResourcesCallback.onCreateResourcesFinished();
}
@Override
public void onCreateScene(OnCreateSceneCallback
pOnCreateSceneCallback) throws Exception {
// TODO 自动生成的方法存根
Scene scene=new Scene();
scene.setBackground(background); //设置背景
pOnCreateSceneCallback.onCreateSceneFinished(scene);
}