After receiving the same error and finding no references to UISearchDisplayController across our app, we realized we needed to search for and replace searchDisplayController from within one of our storyboards. That corrected the issue after resubmitting a beta to TestFlight.
OK so after more testing, turns out you just have to set: searchController.active = false // or swift 4+ searchController.isActive = false This is the first thing I tried but I called it in one of the UISearchControllerDelegate methods which didn’t work (probably should have called it with dispatch_async (halbano’s answer seems to confirm that)). … Read more
UISearchController’s view has to be removed from its superview before deallocate. (guess it is a bug) Objective-C… -(void)dealloc { [searchController.view removeFromSuperview]; // It works! } Swift 3… deinit { self.searchController.view.removeFromSuperview() } I struggled with this issue for a couple of weeks. ^^
The following makes the search bar visible at first, then allows it to hide when scrolling: override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) if #available(iOS 11.0, *) { navigationItem.hidesSearchBarWhenScrolling = false } } override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) if #available(iOS 11.0, *) { navigationItem.hidesSearchBarWhenScrolling = true } } Using isActive didn’t do what … Read more