packages/SystemUI/res/layout/controls_management.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2019 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.
  -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_horizontal"
    android:paddingTop="@dimen/controls_management_top_padding"
    android:paddingStart="@dimen/controls_management_side_padding"
    android:paddingEnd="@dimen/controls_management_side_padding" >

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical">

        <FrameLayout
            android:id="@+id/icon_frame"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="start|center_vertical"
            android:minWidth="56dp"
            android:visibility="gone"
            android:paddingTop="@dimen/controls_app_icon_frame_top_padding"
            android:paddingBottom="@dimen/controls_app_icon_frame_bottom_padding"
            android:paddingEnd="@dimen/controls_app_icon_frame_side_padding"
            android:paddingStart="@dimen/controls_app_icon_frame_side_padding" >

            <ImageView
                android:id="@android:id/icon"
                android:layout_width="@dimen/controls_app_icon_size"
                android:layout_height="@dimen/controls_app_icon_size" />
        </FrameLayout>

        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:textSize="@dimen/controls_title_size"
            android:textAlignment="center" />

    </LinearLayout>


    <TextView
        android:id="@+id/subtitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/controls_management_titles_margin"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textAlignment="center" />

    <ViewStub
        android:id="@+id/stub"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="64dp">

        <View
            android:layout_width="match_parent"
            android:layout_height="@dimen/controls_app_divider_height"
            android:layout_gravity="center_horizontal|top"
            android:background="?android:attr/listDivider" />

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:padding="4dp">

            <Button
                android:id="@+id/other_apps"
                android:visibility="gone"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:gravity="center_vertical"
                android:text="See other apps"
                style="@*android:style/Widget.DeviceDefault.Button.Borderless.Colored"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintStart_toStartOf="parent"/>

            <Button
                android:id="@+id/done"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:text="Done"
                style="@*android:style/Widget.DeviceDefault.Button.Colored"
                app:layout_constraintTop_toTopOf="parent"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"/>
        </androidx.constraintlayout.widget.ConstraintLayout>
    </FrameLayout>


</LinearLayout>