title: Set section's title after connection process
body: <p>I have a UITableView that displays data from invoking a REST web service.
  I'd like in that UITableView to set section's title from an NSMutableArray that get its data after connection to the Web Service.
  Can I control the process as follows:</p>
  
  <ul>
  <li>Connecting to the web service and populate all NSMutableArray</li>
  <li>Get data from a specific NSMutableArray</li>
  <li>Set section's title and then show the UITableView.</li>
  </ul>
  
  <p>The problem is that the compiler triggers the UITableView before getting data from web service.<br>
  Is that possible?</p>