templates/CardStream/_MODULE_/src/template/res/layout/cardstream.xml.ftl

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fillViewport="true">

    <${sample.package}.CardStreamLinearLayout
        style="@style/CardStream"
        android:id="@+id/card_stream"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </${sample.package}.CardStreamLinearLayout>
</ScrollView>