title: UISearchBar going to the view's top when I click on it
body: <p>I have a UITableView which doesn't reach the entire view. Approximatively, the UITableView is two times smaller than the view.</p>
  
  <p>Then, I add <em>"Search Bar and Search Display Controller"</em> to the UITableView from the <em>Object library</em>. So, to visualize, the searchBar appears at the screen's center.</p>
  
  <p><strong>Here's my view :</strong></p>
  
  <p><img src="https://i.stack.imgur.com/1C5nX.png" alt="enter image description here"></p>
  
  <p><strong>My problem :</strong> When I click into the search field to do my research, the searchBar is going to the top of the view, in place of the navigation bar ! And the transition is very awful... How can I constraint the searchBar to stay in its initial place ?</p>