import com.google.vrtoolkit.cardboard.sensors.HeadTracker; //导入依赖的package包/类
private void init(Context context) {
	setEGLContextClientVersion(2);
	setPreserveEGLContextOnPause(true);

	WindowManager windowManager = (WindowManager) context
			.getSystemService("window");

	this.mHeadTracker = new HeadTracker(context);
	this.mHmd = new HeadMountedDisplay(windowManager.getDefaultDisplay());
}
 

import com.google.vrtoolkit.cardboard.sensors.HeadTracker; //导入依赖的package包/类
public CardboardImplementation(Activity activity) {
	VirtualReality.implementation = this;

	VirtualReality.head = new Head();
	VirtualReality.body = new Body();
	VirtualReality.renderer = new VirtualRealityRenderer();

	headTracker = new HeadTracker(activity);
	headTracker.startTracking();

	HeadMountedDisplay hmd = new HeadMountedDisplay(activity.getWindowManager().getDefaultDisplay());
	VirtualReality.headMountedDisplay = new CardboardHMD(hmd);

	VirtualReality.distortionRenderer = new CardboardDistortionRenderer(hmd, new DistortionRenderer());

	Gdx.app.addLifecycleListener(new LifecycleListener() {
		@Override
		public void resume() {
		}

		@Override
		public void pause() {
		}

		@Override
		public void dispose() {
			headTracker.stopTracking();
		}
	});
}
 

import com.google.vrtoolkit.cardboard.sensors.HeadTracker; //导入依赖的package包/类
@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
//        mSurfaceView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
//                | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
//                | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
//                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
//                | View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
//                | View.SYSTEM_UI_FLAG_IMMERSIVE);
        mHeadTracker = new HeadTracker(this);
    }
 

import com.google.vrtoolkit.cardboard.sensors.HeadTracker; //导入依赖的package包/类
public CardboardProcessor(Context context) {
       tracker = HeadTracker.createFromContext(context);
       tracker.startTracking();
}