tests/ThemePlayground/res/layout/text_samples.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 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
  -->

<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">

    <include layout="@layout/set_background"
             android:id="@+id/setBackground"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_marginTop="20dp"
             app:layout_constraintBottom_toTopOf="@+id/text_sample_list"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent"/>

    <ScrollView
        android:id="@+id/text_sample_list"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginBottom="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@id/setBackground">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/unset"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Text Appearance Not Set (thus textAppearanceSmall)"/>

            <TextView
                android:id="@+id/textAppearanceLarge"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceLarge"
                android:textAppearance="?android:attr/textAppearanceLarge" />

            <TextView
                android:id="@+id/textAppearanceLargeInverse"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceLargeInverse"
                android:textAppearance="?android:attr/textAppearanceLargeInverse" />

            <TextView
                android:id="@+id/textAppearanceMedium"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TextApperanceMedium"
                android:textAppearance="?android:attr/textAppearanceMedium" />

            <TextView
                android:id="@+id/textAppearanceMediumInverse"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceMediumInverse"
                android:textAppearance="?android:attr/textAppearanceMediumInverse" />

            <TextView
                android:id="@+id/textAppearance"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearance"
                android:textAppearance="?android:attr/textAppearance" />

            <TextView
                android:id="@+id/textAppearanceInverse"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceInverse"
                android:textAppearance="?android:attr/textAppearanceInverse" />

            <TextView
                android:id="@+id/small"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="TextApperanceSmall"
                android:textAppearance="?android:attr/textAppearanceSmall" />

            <TextView
                android:id="@+id/textAppearanceSmallInverse"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceSmallInverse"
                android:textAppearance="?android:attr/textAppearanceSmallInverse" />

            <TextView
                android:id="@+id/textAppearanceListItem"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceListItem"
                android:textAppearance="?android:attr/textAppearanceListItem" />

            <TextView
                android:id="@+id/textAppearanceListItemSmall"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceListItemSmall"
                android:textAppearance="?android:attr/textAppearanceListItemSmall" />

            <TextView
                android:id="@+id/textAppearanceListItemSecondary"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="textAppearanceListItemSecondary"
                android:textAppearance="?android:attr/textAppearanceListItemSecondary" />
        </LinearLayout>
    </ScrollView>
    <include layout="@layout/menu_button"/>

</androidx.constraintlayout.widget.ConstraintLayout>