title: Setting up an UIActivityIndicatorView for the UITableViewController programmatically
body: <p>I have a regular <code>UITableViewController</code> and a <code>UITableView</code> as its only view, and I want to have an <code>UIActivittyIndicatorView</code> in addition to the table view.</p>
  
  <p>So I need a view structure like this:</p>
  
  <pre><code>view (UIView):
    tableView
    activityIndicatorView
  </code></pre>
  
  <p>What's the cleanest way to do it without InterfaceBuilder? I guess I need to override the <code>loadView:</code> method, but I haven't succeed doing it so far.</p>