samples/SupportLeanbackShowcase/app/src/main/res/layout/video_surface_fragment.xml

<?xml version="1.0" encoding="utf-8"?>
<SurfaceView xmlns:android="http://schemas.android.com/apk/res/android"
           android:layout_width="match_parent"
           android:layout_height="match_parent">

</SurfaceView>