wearable/wear/WearMessagingApp/Wearable/src/main/res/layout/activity_chat.xml

<?xml version="1.0" encoding="utf-8"?><!--
  ~ Copyright 2017 Google Inc.
  ~
  ~ 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.wearable.view.drawer.WearableDrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/no_messages_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="12dp"
        android:layout_marginEnd="@dimen/horizontal_spacing"
        android:text="@string/you_have_no_messages"
        android:layout_gravity="center_vertical"
        android:visibility="gone"
        tools:visibility="visible" />

    <android.support.wearable.view.WearableRecyclerView
        android:id="@+id/recycler_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@null"
        android:clipToPadding="false"
        android:paddingBottom="@dimen/list_item_height"
        android:paddingTop="@dimen/list_item_height"
        android:scrollbars="vertical" />

    <android.support.wearable.view.drawer.WearableActionDrawer
        android:id="@+id/bottom_action_drawer"
        android:layout_width="match_parent"
        app:action_menu="@menu/chat"
        android:layout_height="match_parent" />

    <EditText
        android:id="@+id/edit_text_input"
        android:layout_width="0sp"
        android:layout_height="0sp"
        android:imeOptions="actionSend"
        android:inputType="textShortMessage|textAutoCorrect|textCapSentences"
        android:visibility="invisible"
        tools:ignore="LabelFor" />
</android.support.wearable.view.drawer.WearableDrawerLayout>