GLSurfaceView: transparent background and inscription on top

Question

I need a GLSurfaceView with a transparent background (because I need to see the view below), and I successfully created it with the following code:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/test"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:src="@drawable/test" />


    <android.opengl.GLSurfaceView
        android:id="@+id/surfaceView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/bar" />

    <ImageView
        android:id="@+id/view_test"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:padding="10dp"
        android:src="@drawable/ic_test" />

</RelativeLayout>

From what I understood, the only way to make GLSurfaceView transparent is to add view.setZOrderOnTop (true) to the GLSurfaceView file . Following is how I declared GLSurfaceView:

mGlSurfaceView.setZOrderOnTop(true); //this is the line of code that is causing my problem
mGlSurfaceView.setEGLConfigChooser(8, 8, 8, 8, 16, 0);
mGlSurfaceView.setEGLContextClientVersion(2);
mGlSurfaceView.getHolder().setFormat(PixelFormat.RGBA_8888);
mGlSurfaceView.setRenderer(mRenderer);
mGlSurfaceView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
mGlSurfaceView.requestRender();

Now that the ZOrderOnTop flag is set to true, I no longer see the ImageView, which is in xml after GLSurfaceView.

My question is: Is there a way to place a view over a transparent GLSurfaceView?