title: Remove header from listView
body: <p>I'm having some problems when trying to remove the header from a <code>listView</code>. At first I use <code>addHeaderView()</code> to add it, but when I change to another layout I want it to disappear but <code>removeHeaderView()</code> doesn't work...</p>
  
  <p>I also tried setting visibility to GONE and it doesn't disappear...</p>
  
  <p>What can I do?</p>
  
  <p>Thanks in advance</p>