SurfaceView GLSurfaceView 叠加显示

其实目的是叠加视频和OpenGL ES的内容，视频在下层，OpenGL ES背景透明。

• SurfaceView无需特别设置
• GLSurfaceView设置：

setEGLContextClientVersion(2);
setEGLConfigChooser(8, 8, 8, 8, 16, 0);
setZOrderOnTop(true);
getHolder().setFormat(PixelFormat.TRANSLUCENT);

然后是setRenderer

• 添加view关键代码

FrameLayout.LayoutParams p = new FrameLayout.LayoutParams(
                FrameLayout.LayoutParams.MATCH_PARENT,
                FrameLayout.LayoutParams.MATCH_PARENT);

GLSurfaceView vGL = new GLSurfaceView();
SurfaceView vSurface = new SurfaceView(this);
addContentView(vSurface, p);
addContentView(vGL, p);