I had the same problem (I think), and the only solution I could find was this:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<View
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/some_image"
android:layout_alignTop="@+id/actual_content"
android:layout_alignBottom="@id/actual_content"
android:layout_alignLeft="@id/actual_content"
android:layout_alignRight="@id/actual_content"
/>
<LinearLayout
android:id="@id/actual_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
>
<!-- more stuff ... -->
</LinearLayout>
</RelativeLayout>