tests/sketch/res/layout/overlaydemo.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <ListView
      android:id="@+id/list" 
      android:layout_width="fill_parent" 
      android:layout_height="0dip"
      android:layout_weight="1"/>
</LinearLayout>