samples/sample2/rro/res/layout/car_left_system_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
**
** Copyright 2018, 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.
*/
-->

<com.android.systemui.car.systembar.CarSystemBarView
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:systemui="http://schemas.android.com/apk/res-auto"
    android:layout_height="match_parent"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:background="@drawable/system_bar_background">

    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/home"
        style="@style/SystemBarButton"
        systemui:componentNames="com.android.car.carlauncher/.CarLauncher"
        systemui:icon="@drawable/car_ic_overview"
        systemui:intent="intent:#Intent;action=android.intent.action.MAIN;category=android.intent.category.HOME;launchFlags=0x14000000;end"
        systemui:highlightWhenSelected="true"
    />

    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/maps_nav"
        style="@style/SystemBarButton"
        systemui:categories="android.intent.category.APP_MAPS"
        systemui:icon="@drawable/car_ic_navigation"
        systemui:intent="intent:#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_MAPS;launchFlags=0x14000000;end"
        systemui:highlightWhenSelected="true"
    />

    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/music_nav"
        style="@style/SystemBarButton"
        systemui:categories="android.intent.category.APP_MUSIC"
        systemui:icon="@drawable/car_ic_music"
        systemui:intent="intent:#Intent;action=android.car.intent.action.MEDIA_TEMPLATE;launchFlags=0x10000000;end"
        systemui:packages="com.android.car.media"
        systemui:highlightWhenSelected="true"
    />


    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/grid_nav"
        style="@style/SystemBarButton"
        systemui:componentNames="@string/config_appGridComponentName"
        systemui:icon="@drawable/car_ic_apps"
        systemui:intent="intent:#Intent;action=com.android.car.carlauncher.ACTION_APP_GRID;package=com.android.car.carlauncher;launchFlags=0x24000000;end"
        systemui:highlightWhenSelected="true"
    />

    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/phone_nav"
        style="@style/SystemBarButton"
        systemui:icon="@drawable/car_ic_phone"
        systemui:intent="intent:#Intent;action=android.intent.action.MAIN;category=android.intent.category.LAUNCHER;package=com.android.car.dialer;launchFlags=0x10000000;end"
        systemui:packages="com.android.car.dialer"
        systemui:highlightWhenSelected="true"
    />

    <com.android.systemui.car.systembar.CarSystemBarButton
        android:id="@+id/notifications"
        style="@style/SystemBarButton"
        systemui:highlightWhenSelected="true"
        systemui:icon="@drawable/car_ic_notification"
        systemui:longIntent="intent:#Intent;action=com.android.car.bugreport.action.START_AUDIO_FIRST;component=com.android.car.bugreport/.BugReportActivity;end"/>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:gravity="bottom"
        android:orientation="vertical">

        <com.android.systemui.statusbar.policy.Clock
            android:id="@+id/clock"
            android:textAppearance="@style/TextAppearance.StatusBar.Clock"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:singleLine="true"
            android:gravity="center_horizontal"
            android:paddingBottom="20dp"
        />

        <Space
            android:layout_height="10dp"
            android:layout_width="match_parent"/>

    </LinearLayout>

</com.android.systemui.car.systembar.CarSystemBarView>