title: problem placing Button/ListView under relative layout in layout XML
body: <p>The following is the layout XML for something I am working on.  It is supposed to display and edit field and some buttons at the top of the display with a ListView filling up the rest.  However only the items embedded in the RelativeLayout show up.  The items below do not display.  I'm not sure what I am doing wrong in the layout XML.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent" &gt;
  &lt;RelativeLayout
      android:orientation="vertical" 
      android:layout_width="fill_parent"
      android:layout_height="wrap_content" 
      android:padding="10px"&gt;
  
      &lt;TextView android:id="@+id/tidName" 
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content" 
                android:gravity="center_horizontal"
                android:text="Enter Name:" /&gt;
  
      &lt;EditText android:id="@+id/eidName" 
                android:layout_width="fill_parent" 
                android:layout_height="wrap_content" 
                android:background="@android:drawable/editbox_background"
                android:layout_below="@id/tidName" /&gt;
  
      &lt;Button android:id="@+id/bidShow" 
              android:layout_width="wrap_content" 
              android:layout_height="wrap_content" 
              android:layout_below="@id/tidName"
              android:layout_alignParentRight="true"
              android:layout_marginLeft="10px"
              android:text="Show Search Results" /&gt;
  
      &lt;Button android:id="@+id/bidUseDefault"
              android:layout_width="wrap_content" 
              android:layout_height="wrap_content"
              android:layout_below="@id/tidName"
              android:layout_alignParentLeft="true"
              android:layout_marginRight="10px"
              android:text="Use Default" /&gt;
  
  &lt;/RelativeLayout&gt;
  &lt;Button 
              android:layout_below="@id/ridMain"
              android:layout_width="wrap_content" 
              android:layout_height="wrap_content" 
              android:text="Refresh" /&gt;
  &lt;ListView android:id="@+id/lidResults"
          android:layout_width="fill_parent"
          android:layout_height="fill_parent" /&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>thanks in advance,</p>