想通了自己。尽管SurfaceView是View的子类，SurfaceView显示通过窗口的方式是有点滑稽，基本上画布实际上穿过surfaceview，但它背后的Z顺序。这个多面的，因为意见必须使用surfaceview.setZOrderOnTop（真）进行排序;

Figured it out myself. Even though SurfaceView is a subclass of View, the way SurfaceView displays through the window is kinda funny, Basically The canvas actually goes through the surfaceview but is behind it in Z order. Because of this Multiple surface views have to be ordered using surfaceview.setZOrderOnTop(true);

现在我只担心使得GLSurfaceView透明。

Now I just have to worry about making the GLSurfaceView Transparent.