skyline/app/src/main/res/layout/on_screen_edit_activity.xml

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

    <emu.skyline.input.onscreen.OnScreenControllerView
            android:id="@+id/on_screen_controller_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    <LinearLayout
            android:id="@+id/fab_parent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end"
            android:layout_margin="16dp"
            android:orientation="horizontal" />
</FrameLayout>