title: How do you change the textLabel when UITableViewCell is selected?
body: <p>I want to change the textLabel and detailTextLabel of a cell when it has been selected.
  I've tried the following, but no change occurs:</p>
  
  <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
      MyAppDelegate *appDelegate = (MyPhoneAppDelegate*)[[UIApplication sharedApplication] delegate];
  
      UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
      cell.detailTextLabel.text = @"xxxxx";
      cell.textLabel.text =       @"zzzzz";
      [tableView reloadData];
  }
  </code></pre>