Displaying search bar in navigation bar in iOS 8 - ios8

Question

UISearchDisplayController had a boolean property called displaysSearchBarInNavigationBar. What's the equivalent in iOS 8 to have my search bar move up there? Any guidance is greatly appreciated.
Here's my code, I'm not entirely sure why this isn't working. When I click the search bar, it just disappears instead of moving itself and the navigation bar up.
import UIKit
class ViewController: UIViewController, UISearchResultsUpdating, UISearchControllerDelegate, UISearchBarDelegate, UITableViewDelegate, UITableViewDataSource {
let searchController = UISearchController(searchResultsController: nil)
var tableView = UITableView()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.searchController.searchResultsUpdater = self
self.searchController.delegate = self
self.searchController.searchBar.delegate = self
self.searchController.hidesNavigationBarDuringPresentation = true
self.searchController.dimsBackgroundDuringPresentation = true
tableView.dataSource = self
tableView.delegate = self
self.navigationItem.titleView = searchController.searchBar
self.definesPresentationContext = true
self.setupSearchBar()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
}
func setupSearchBar() {
// Set search bar position and dimensions
var searchBarFrame: CGRect = self.searchController.searchBar.frame
var viewFrame = self.view.frame
self.searchController.searchBar.frame = CGRectMake(searchBarFrame.origin.x, searchBarFrame.origin.y + 64,viewFrame.size.width, 44)
// Add search controller's search bar to our view and bring it to forefront
self.view.addSubview(self.searchController.searchBar)
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = UITableViewCell()
return cell
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 5
}
}

Answer 1

According to Apple :
UISearchDisplayController is deprecated in iOS 8. (Note that UISearchDisplayDelegate is also deprecated.) To manage the presentation of a search bar and display search results in iOS 8 and later, instead use UISearchController.
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, a UIViewController 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