res/layout/people_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2009 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">

    <RelativeLayout
        android:id="@+id/list_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <include
            layout="@layout/people_activity_toolbar"
            android:id="@+id/toolbar_parent" />

        <!--
            ViewPager for swiping between tabs.  We put StrequentContactListFragment,
            DefaultContactBrowseListFragment and GroupBrowseListFragment at runtime.

            (Adding them directly as the children of this view is not recommended.  ViewPager should
            be treated like a ListView, which doesn't expect children to be added from the layout.)
        -->
        <android.support.v4.view.ViewPager
            android:id="@+id/tab_pager"
            android:layout_height="match_parent"
            android:layout_width="match_parent"
            android:layout_below="@id/toolbar_parent"
            />

        <FrameLayout
            android:id="@+id/contacts_unavailable_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_below="@id/toolbar_parent"
            android:visibility="gone">
            <FrameLayout
                android:id="@+id/contacts_unavailable_container"
                android:layout_height="match_parent"
                android:layout_width="match_parent" />
        </FrameLayout>

        <include layout="@layout/floating_action_button" />
    </RelativeLayout>

    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer"/>

</android.support.v4.widget.DrawerLayout>