问与以编程方式创建的UISearchController的交互阻止了iOS 9

EN

var resultSearchController = UISearchController()
var myTableView = UITableView()

override func viewDidLoad() {
    super.viewDidLoad()

    myTableView.frame = CGRectMake(0, 21, view.bounds.width, view.bounds.height-20) //programatically made my tableview for use with UISearchController
    myTableView.delegate = self
    myTableView.dataSource = self

    myTableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "cell")

    self.resultSearchController = ({
        let controller = UISearchController(searchResultsController: nil)
        controller.searchResultsUpdater = self
        controller.searchBar.delegate = self
        controller.dimsBackgroundDuringPresentation = false
        controller.searchBar.sizeToFit()
        controller.searchBar.userInteractionEnabled = true
        controller.searchBar.hidden = false

        self.myTableView.tableHeaderView = controller.searchBar // attach searchBar to tableView

        return controller
    })()

    UIApplication.sharedApplication().keyWindow?.addSubview(myTableView) //put view on top of navigation bar