我在写我的AndEngine的BaseGameActivity定制的对话窗口，有时，当对话框不得不dissapear，应用程序崩溃，出现此错误：

  9月8日至15日：49：16.193：ERROR / AndroidRuntime（1572）：致命异常：GLThread        java.lang.IndexOutOfBoundsException：无效指数3，大小为3        在java.util.ArrayList.throwIndexOutOfBoundsException（ArrayList.java:251）        在java.util.ArrayList.get（ArrayList.java:304）        在org.anddev.andengine.entity.Entity.onManagedDrawChildren（Entity.java:1008）        在org.anddev.andengine.entity.Entity.onDrawChildren（Entity.java:1000）        在org.anddev.andengine.entity.Entity.onManagedDraw（Entity.java:993）        在org.anddev.andengine.entity.scene.Scene.onManagedDraw（Scene.java:233）        在org.anddev.andengine.entity.Entity.onDraw（Entity.java:875）        在org.anddev.andengine.engine.Engine.onDrawScene（Engine.java:517）        在org.anddev.andengine.engine.Engine.onDrawFrame（Engine.java:509）        在org.anddev.andengine.opengl.view.RenderSurfaceView $ Renderer.onDrawFrame（RenderSurfaceView.java:154）        在org.anddev.andengine.opengl.view.GLSurfaceView $ GLThread.guardedRun（GLSurfaceView.java:617）        在org.anddev.andengine.opengl.view.GLSurfaceView $ GLThread.run（GLSurfaceView.java:549） 

解决方案

我发现，当你试图分离的孩子在后台线程可能会发生，所以你必须使用要分离这个code，每次东西：

  activity.runOnUpdateThread（新的Runnable（）{    @覆盖    公共无效的run（）{        scene.detachChild（小孩）;    }}）; 

I'm writing a custom dialog window for my AndEngine's BaseGameActivity and sometimes, when dialog have to dissapear, app crashes with this error:

08-15 09:49:16.193: ERROR/AndroidRuntime(1572): FATAL EXCEPTION: GLThread
        java.lang.IndexOutOfBoundsException: Invalid index 3, size is 3
        at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
        at java.util.ArrayList.get(ArrayList.java:304)
        at org.anddev.andengine.entity.Entity.onManagedDrawChildren(Entity.java:1008)
        at org.anddev.andengine.entity.Entity.onDrawChildren(Entity.java:1000)
        at org.anddev.andengine.entity.Entity.onManagedDraw(Entity.java:993)
        at org.anddev.andengine.entity.scene.Scene.onManagedDraw(Scene.java:233)
        at org.anddev.andengine.entity.Entity.onDraw(Entity.java:875)
        at org.anddev.andengine.engine.Engine.onDrawScene(Engine.java:517)
        at org.anddev.andengine.engine.Engine.onDrawFrame(Engine.java:509)
        at org.anddev.andengine.opengl.view.RenderSurfaceView$Renderer.onDrawFrame(RenderSurfaceView.java:154)
        at org.anddev.andengine.opengl.view.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:617)
        at org.anddev.andengine.opengl.view.GLSurfaceView$GLThread.run(GLSurfaceView.java:549)

I have found that it may happen when you trying to detach child in a background thread, so you have to use this code everytime you want to detach something:

activity.runOnUpdateThread(new Runnable() {
    @Override
    public void run() {
        scene.detachChild(child);
    }
});