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

Programmatically:

1. In AppDelegate.swift:

        window = UIWindow(frame: UIScreen.main.bounds)
        window?.makeKeyAndVisible()

        let navigationController = UINavigationController.init(rootViewController: ViewController())
        window?.rootViewController = navigationController

2. In ViewController:

    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)

        navigationController?.navigationBar.prefersLargeTitles = true
        navigationItem.largeTitleDisplayMode = .automatic
    }

   override func loadView() {
        super.loadView()

        view.addSubview(tableView)
        view.addSubview(loadingView)

        NSLayoutConstraint.activate([
            tableView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor),
            tableView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            tableView.widthAnchor.constraint(equalTo: view.safeAreaLayoutGuide.widthAnchor),
            tableView.heightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.heightAnchor)
            ])
    }

Make sure your tableView has beed previously added to your view.