res/layout/one_pane_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
     Copyright (C) 2014 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"
    android:id="@+id/drawer_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <!-- DrawerLayout current only supports one content view (b/8752191) -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <!-- Custom toolbar/search overlay -->
        <include layout="@layout/toolbar_with_search" />

        <FrameLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:foregroundGravity="fill_horizontal|top"
            android:foreground="?android:attr/windowContentOverlay">

            <FrameLayout
                android:id="@+id/content_pane"
                android:layout_width="match_parent"
                android:layout_height="match_parent" />

            <include layout="@layout/conversation_pager" />

            <include layout="@layout/floating_actions" />

            <include layout="@layout/search_suggestion_list" />

        </FrameLayout>

    </LinearLayout>

    <!--A drawer for phones: a pull-out that gives the list of folders. -->
    <include layout="@layout/drawer_fragment"
        android:layout_width="@dimen/drawer_width"
        android:layout_height="match_parent"
        android:layout_gravity="start" />

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