title: SimpleExpandableListAdapter sections titles
body: <p>I implemented my <code>SimpleExpandableListAdapter</code>, and I'm trying to customize the section titles. To do this I pass to the <a href="http://developer.android.com/reference/android/widget/SimpleExpandableListAdapter.html#SimpleExpandableListAdapter%28android.content.Context,%20java.util.List%3C?%20extends%20java.util.Map%3Cjava.lang.String,%20?%3E%3E,%20int,%20java.lang.String%5b%5d,%20int%5b%5d,%20java.util.List%3C?%20extends%20java.util.List%3C?%20extends%20java.util.Map%3Cjava.lang.String,%20?%3E%3E%3E,%20int,%20java.lang.String%5b%5d,%20int%5b%5d%29" rel="nofollow">constructor</a> the id of a custom <code>TextView</code> for the <em>groupTo</em> parameter:</p>
  
  <pre><code>    setListAdapter( new SimpleExpandableListAdapter(this,
                                                      groupsData, 
                                                      android.R.layout.simple_expandable_list_item_1,
                                                      new String[]{SECTION}, 
                                                      new int[]{R.id.list_group_title}, 
                                                      innerData,
                                                      0, 
                                                      null, 
                                                      new int[]{}){ /*my code here*/ });
  
  &lt;TextView xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/list_group_title"
          android:layout_width="fill_parent"
          android:layout_height="wrap_content"
          android:textSize="20dip" /&gt;
  </code></pre>
  
  <p>Problem is, nothing is showing up! The whole thing is blank, as if the view wasn't there.
  Any idea on why, or any link I could read up to solve this? Thanks!</p>