search bar disappear after press search

Question

I am using UISearch bar controller

after I press on it disappear like this

my code :

let searchController = UISearchController(searchResultsController: nil)


override func viewDidLoad() {
    super.viewDidLoad()

    // MARK: - Search
    searchController.searchBar.delegate = self
    navigationItem.titleView = searchController.searchBar

}
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
presentViewController(searchController, animated: true, completion: nil)

}

Answer 1

try this

self.searchController.hidesNavigationBarDuringPresentation = NO
self.definesPresentationContext = NO

or use this

func willPresentSearchController(searchController: UISearchController)     {
self.navigationController.navigationBar.translucent = true
}

func willDismissSearchController(searchController: UISearchController) {
self.navigationController.navigationBar.translucent = false
}

for additional Help see this link

Answer 2

Try to set this property of Viewcontroller

self.definesPresentationContext = NO