Can't get view to render in a RelativeLayout
<p>I have a relative layout, and want a left-aligned view that fills its height:</p>

<pre><code>&lt;RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="#FF0" &gt;

    &lt;LinearLayout
        android:id="@+id/stripe"
        android:layout_width="20dp"
        android:layout_height="fill_parent"
        android:background="#F00"
        android:layout_alignParentLeft="true" 
        android:layout_alignParentTop="true"/&gt;

    &lt;TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/stripe" 
        android:layout_alignParentTop="true" 
        android:text="Some long string." /&gt;
&lt;/RelativeLayout&gt;
</code></pre>

<p>I see the 20dp width reserved for "stripe", but don't get a red fill as expected. I'm sure the "stripe" view has its visibility set to VISIBLE (and not INVISIBLE). Any idea why this wouldn't be working? </p>

<p>Thanks</p>
