How to set iOS 13 dark mode large title color?

Question

In my app i use

let navigationBar = UINavigationBar.appearance()
navigationBar.largeTitleTextAttributes = [
    NSAttributedString.Key.font: UIFont.SFProDisplay(ofSize: 34, weight: .bold),
    NSAttributedString.Key.foregroundColor: UIColor.custom
]

static var custom: UIColor {
    return UIColor(named: "color_custom")!
}

where have a color set color_custom . But when switching between color modes it used only Any Appearance color. Dark Appearance not used. Why?

ADDITION:

After some research i figured that should add to the question next: In my app i use a switcher to switch between modes. Storage.isDarkModeOn = newState // saving in user defaults . Then:

class PapaViewController: UIViewController {
    if #available(iOS 13.0, *) {
        overrideUserInterfaceStyle = Storage.isDarkModeOn ? .dark : .light
    }
}

Where PapaViewController is a parent class for all UIViewControllers in my app. So if overrideUserInterfaceStyle ==.dark and device color mode == .light the bug shows up. If then i change the device color mode to .dark then large title looks as expected.

Answer 1

The problem with the code you've shown now is merely that you're talking to the wrong view controller. It is not your view controller ( self ) whose override you need to change: it is the root view controller, which in this case is probably the navigation controller.

class PapaViewController: UIViewController {
    if #available(iOS 13.0, *) {
        self.navigationController?.overrideUserInterfaceStyle = // ...
    }
}

Answer 2

Have you tried using iOS 13's new appearance API?

https://developer.apple.com/documentation/uikit/uinavigationbarappearance

Example:

let style = UINavigationBarAppearance()
style.largeTitleTextAttributes = [.font: #YOURFONT#]

navigationController?.navigationBar.standardAppearance = style
navigationController?.navigationBar.scrollEdgeAppearance = ...
navigationController?.navigationBar.compactAppearance = ...