According to Apple :
UISearchDisplayController
is deprecated in iOS 8. (Note thatUISearchDisplayDelegate
is also deprecated.) To manage the presentation of a search bar and display search results in iOS 8 and later, instead useUISearchController
.The
UISearchController
class defines an interface that manages the presentation of a search bar in concert with the search results controller’s content. The search results controller, aUIViewController
object specified by the searchResultsController property, manages the results of the search.
Now you can use the UISearchController
to show the search bar in your navigation bar in the following way:
class ViewController: UIViewController, UISearchControllerDelegate, UISearchResultsUpdating, UISearchBarDelegate {
var searchController : UISearchController!
override func viewDidLoad() {
super.viewDidLoad()
self.searchController = UISearchController(searchResultsController: nil)
self.searchController.searchResultsUpdater = self
self.searchController.delegate = self
self.searchController.searchBar.delegate = self
self.searchController.hidesNavigationBarDuringPresentation = false
self.searchController.dimsBackgroundDuringPresentation = true
self.navigationItem.titleView = searchController.searchBar
self.definesPresentationContext = true
}
func updateSearchResults(for searchController: UISearchController) {
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
But you have to consider you need to set a UINavigationController
like in this Storyboard :
You can do it very easy just select your ViewController
and see the following steps:
And then you should see in your device when you make click in the search bar the following picture:
I hope this help you