Attempting to load the view of a view controller while it is deallocating… UISearchController

Question

I have code that creates a UISearchController\' in my UIVIew\'sviewDidLoad`.

 self.resultSearchController = ({
        let controller = UISearch         


        

Answer 1

Creating a search controller in viewDidLoad() and setting its search bar as the navigation item's title view doesn't create a strong reference to the search controller, which is why it's deallocated.

So instead of doing this:

override func viewDidLoad() {
    super.viewDidLoad()
    // Create search controller
    let searchController = UISearchController(searchResultsController: nil)
    // Add search bar to navigation bar
    navigationItem.titleView = searchController.searchBar
    // Size search bar
    searchController.searchBar.sizeToFit()
}

You should do this:

var searchController: UISearchController!

override func viewDidLoad() {
    super.viewDidLoad()
    // Create search controller
    searchController = UISearchController(searchResultsController: nil)
    // Add search bar to navigation bar
    navigationItem.titleView = searchController.searchBar
    // Size search bar
    searchController.searchBar.sizeToFit()
}