Android Dev Intro - SurfaceView Overlay

1.     SurfaceView set Zorder

        mSurfaceView1 = (SurfaceView) findViewById(R.id.multiSurfaceView1);

        mSurfaceView1.getHolder().addCallback(this);

        mSurfaceView1.setSecure(true);

        mSurfaceView2 = (SurfaceView) findViewById(R.id.multiSurfaceView2);

        mSurfaceView2.getHolder().addCallback(this);

        mSurfaceView2.getHolder().setFormat(PixelFormat.TRANSLUCENT);

        mSurfaceView2.setZOrderMediaOverlay(true);

        mSurfaceView3 = (SurfaceView) findViewById(R.id.multiSurfaceView3);

        mSurfaceView3.getHolder().addCallback(this);

        mSurfaceView3.getHolder().setFormat(PixelFormat.TRANSLUCENT);

        mSurfaceView3.setZOrderOnTop(true);

2.    SurfaceView set layout