samples/Support4Demos/res/layout/accessibility_roledescription.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/accessibility_roledescription_instructions"/>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal"
            android:padding="24dp">

            <TextView
                android:id="@+id/text_view_1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:padding="24dp"
                android:background="#ffffff"
                android:textColor="#000000"
                android:text="@string/accessibility_roledescription_item"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="24dp"
                android:padding="24dp"
                android:background="#ffffff"
                android:textColor="#000000"
                android:text="@string/accessibility_roledescription_item"/>

        </LinearLayout>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/accessibility_roledescription_example"/>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="24dp">

            <TextView
                android:id="@+id/text_heading_1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="0dp"
                android:textSize="24sp"
                android:text="@string/accessibility_roledescription_h1_item"/>

            <TextView
                android:id="@+id/text_heading_2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="24dp"
                android:textSize="20sp"
                android:text="@string/accessibility_roledescription_h2_item"/>

            <TextView
                android:id="@+id/text_heading_3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginStart="48dp"
                android:textSize="16sp"
                android:text="@string/accessibility_roledescription_h3_item"/>

        </LinearLayout>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/accessibility_roledescription_counterexample"/>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="24dp">

            <Button
                android:id="@+id/button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/accessibility_roledescription_button_item"/>

        </LinearLayout>

    </LinearLayout>

</ScrollView>