title: Keep UIKeyboard up while reloading UITableView section
body: <p>I would like to know if there is a way to keep <code>UIKeyboard</code> up while reloading section in <code>UITableView</code>? I have <code>UITextField</code> inside a <em>header view</em> of <code>UITableView</code>'s <em>section</em>. Typing into this <code>UITextField</code> fires action that requires a <em>section</em> to be updated (reloaded).</p>
  
  <p>As a result of calling <code>[tableView reloadSections:...]</code> the keyboard hides itself, because <code>UITextField</code> loses it's <code>firstResponder</code> status.</p>
  
  <p>I would like to achieve similar effect like when using <code>UISearchBar</code> component in <code>UITableView</code>.</p>
  
  <p>Thanks!</p>