iOS 11 prefersLargeTitles not updating until scroll

Question

I implemented a basic UIViewController with a UITableView that\'s wrapped in a UINavigationController. I set prefersLargeTitles to true:

override fu         


        

Answer 1

I ran into the same issue and found that it’s usually best to set the prefersLargeTitles property from the view controller or object that sets it up, and to do so before it is presented.

For instance, if the view controller in question is shown upon app launch:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

    let window = UIWindow(frame: UIScreen.main.bounds)

    let someViewController: UIViewController = CustomViewController()

    let theNavController = UINavigationController(rootViewController: someViewController)
    theNavController.navigationBar.prefersLargeTitles = true

    window.rootViewController = theNavController
    window.makeKeyAndVisible()

    return true
}

or if presenting a particular view controller:

let someViewController: UIViewController = CustomViewController()

let theNavController = UINavigationController(rootViewController: someViewController)
theNavController.navigationBar.prefersLargeTitles = true

present(theNavController, animated: true, completion: nil)

I found this method to be a more sure-fire way to ensure that the navigation title is displayed accordingly. Hope this helps! :)