<!-- A fuller version of the XML file parsed in the illustration. -->

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"/>

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="1"/>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:orientation="vertical"/>

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="2a"/>

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="2b"/>

    </LinearLayout>

</LinearLayout>