packages/SystemUI/res/layout/controls_management_favorites.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.
  -->
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/text_favorites"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="FAVORITES"
        android:textAppearance="?android:attr/textAppearanceSmall"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintBottom_toTopOf="@id/divider1"
        app:layout_constraintTop_toTopOf="parent"
        />

    <View
        android:id="@+id/divider1"
        android:layout_width="match_parent"
        android:layout_height="@dimen/controls_app_divider_height"
        android:layout_gravity="center_horizontal|top"
        android:background="?android:attr/listDivider"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@id/listFavorites"
        app:layout_constraintTop_toBottomOf="@id/text_favorites"
        />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/listFavorites"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="@dimen/controls_management_list_margin"
        android:nestedScrollingEnabled="false"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@id/text_all"
        app:layout_constraintTop_toBottomOf="@id/divider1"/>

    <TextView
        android:id="@+id/text_all"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="@dimen/controls_management_list_margin"
        android:text="ALL"
        android:textAppearance="?android:attr/textAppearanceSmall"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintBottom_toTopOf="@id/divider2"
        app:layout_constraintTop_toBottomOf="@id/listFavorites"
        />

    <View
        android:id="@+id/divider2"
        android:layout_width="match_parent"
        android:layout_height="@dimen/controls_app_divider_height"
        android:layout_gravity="center_horizontal|top"
        android:background="?android:attr/listDivider"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintBottom_toTopOf="@id/listAll"
        app:layout_constraintTop_toBottomOf="@id/text_all"
        />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/listAll"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="@dimen/controls_management_list_margin"
        android:nestedScrollingEnabled="false"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintTop_toBottomOf="@id/divider2"/>

</androidx.constraintlayout.widget.ConstraintLayout>