title: Add a Header to a GridView (Android)
body: <p>I'm aware that the GridView does NOT support a header or footer.
  I'm extensively using GridViews and I would like to have headers that scroll with it.</p>
  
  <p>What is the best way to approach the problem? Extending the GridView? Extending the ScrollView or ListView?</p>
  
  <p>Any pointer or suggestion would be really appreciated! Thanks!</p>