car_product/car_ui_portrait/rro/CarUiPortraitDialerRRO/res/layout/incall_dialpad_fragment.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
  ~
  ~ 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.
  -->
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:focusable="true"
        android:singleLine="true"
        android:layout_centerHorizontal="true"
        android:layout_alignParentTop="true"/>

    <Chronometer
        android:id="@+id/call_state"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:focusable="true"
        android:singleLine="true"
        android:layout_marginTop="40dp"
        android:layout_centerHorizontal="true"
        android:layout_below="@id/title"/>

    <com.android.car.ui.FocusArea
        android:id="@+id/dialpad_focus_area"
        android:layout_height="456dp"
        android:layout_width="416dp"
        android:layout_marginBottom="171dp"
        android:layout_centerHorizontal="true"
        android:layout_alignParentBottom="true">

        <fragment
            android:id="@+id/dialpad_fragment"
            android:name="com.android.car.dialer.ui.dialpad.KeypadFragment"
            android:layout_height="wrap_content"
            android:layout_width="wrap_content"/>

    </com.android.car.ui.FocusArea>
</RelativeLayout>