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

    <include
        android:id="@+id/app_bar"
        layout="@layout/app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true" />

    <FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/app_bar" />

    <View
        android:layout_width="match_parent"
        android:layout_height="@dimen/toolbar_shadow_height_compat"
        android:layout_below="@+id/app_bar"
        android:background="?attr/toolbar_shadow" />
</RelativeLayout>