title: Search Bar always visible
body: <p>Hello I want the <code>searchBar</code> always visible, that is what I have:</p>
  
  <pre><code>searchController = UISearchController(searchResultsController: nil)
  tableView.tableHeaderView = searchController.searchBar
  searchController.searchResultsUpdater = self
  searchController.dimsBackgroundDuringPresentation = false
  </code></pre>
  
  <p>Is there  way to accomplish this?</p>
  
  <p>Thanks in advance</p>