title: Unable to fetch UITableView Footer
body: <p>I'm trying to change the background color of the Footer of a <code>UITableView</code> section. However, I'm not having any luck.</p>
  
  <pre><code>UITableViewCell *cell = [_tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:i]];
  
  cell.backgroundColor = [UIColor redColor];
  cell.textLabel.textColor = [UIColor redColor];
  cell.detailTextLabel.textColor = [UIColor redColor];
  
  UITableViewHeaderFooterView *header = [_tableView footerViewForSection:i];
  [header setBackgroundColor:[UIColor redColor]];
  </code></pre>
  
  <p>The first part - where I set the colors in the cell - is working. The second part - where I want to set the footer color - isn't. What am I doing wrong?</p>