Android: How can I use the layer-list and shape elements to draw a horizontal rule when set as background?

Question

I want to set the background of a Relative or LinearLayout to a custom drawable. I want the shape to draw two horizontal lines across the bottom, leaving the central part transparent (empty).

The following draws the horizontal lines centered vertically, where as I need them to be aligned to the bottom of the shape. (If you add a rectangle as an item you can see the shape expands to the dimenstions of the parent, but the lines are still centrally aligned).

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
 <item>
  <shape android:shape="line">
      <stroke android:width="1dip" android:color="#99b8b9bd" />
      <size android:height="1dip" />
  </shape>
 </item>
 <item>
  <shape android:shape="line" android:top="1dip">
      <stroke android:width="1dip" android:color="#FFFFFFFF" />
      <size android:height="1dip" />
  </shape>
 </item>
</layer-list>

Answer 1

Found the answer before i'd finished asking about it.

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
    <item>
      <shape 
        android:shape="rectangle">
            <stroke android:width="1dp" android:color="@color/hr_bottom" />
            <solid android:color="#00FF0000" />
            <padding android:bottom="1dp"/>
        </shape>
   </item>

   <item>
      <shape 
        android:shape="rectangle">
            <stroke android:width="1dp" android:color="@color/hr_top" />
            <solid android:color="#00FF0000" />
            <padding android:bottom="1dp"/>
        </shape>
   </item>

    <item>
      <shape 
        android:shape="rectangle">
            <stroke android:width="1dp" android:color="#00000000" />
            <solid android:color="#00000000" />
        </shape>
   </item>

</layer-list>