car_product/car_ui_portrait/apps/CarUiPortraitSystemUI/res/layout/hvac_panel_handle_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2021 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
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  ~ distributed under the License is distributed on an "AS IS" BASIS,
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<merge
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <FrameLayout
        android:id="@+id/handle_bar"
        android:layout_width="@dimen/hvac_panel_handle_bar_container_width"
        android:layout_height="@dimen/hvac_panel_handle_bar_container_height"
        android:layout_gravity="center"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintHorizontal_chainStyle="packed">
        <View
            android:layout_width="@dimen/hvac_panel_handle_bar_width"
            android:layout_height="@dimen/hvac_panel_handle_bar_height"
            android:layout_marginTop="@dimen/hvac_panel_handle_bar_margin_top"
            android:layout_gravity="top|center_horizontal"
            android:background="@drawable/hvac_panel_handle_bar"/>
    </FrameLayout>
</merge>