<!-- the theme applied to the application or activity -->
<style name="CustomActionBarTheme"
       parent="@android:style/Theme.AppCompat">
    <item name="android:windowActionBarOverlay">true</item>

    <!-- Support library compatibility -->
    <item name="windowActionBarOverlay">true</item>
</style>

<!-- Support library compatibility -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingTop="?attr/actionBarSize">
    ...
</RelativeLayout>