Change UINavigationbar background colour and title font/colour programmatically

Question

I want to change the navigation bar background colour, title font and colour programmatically in iOS 11 and swift 4 from AppDelegate. I know how to do it using Xcode but didn't find up-to-date solution for doing it programmatically.

Answer 1

You can use the following code to change background colour and Title font.

func setupNavigationBarAppearance() {
    UINavigationBar.appearance().tintColor = .black
    UINavigationBar.appearance().shadowImage = UIImage.imageFromColor(.black, width: 1.0, height: 1.0)?.resizableImage(withCapInsets: .zero, resizingMode: .tile)
    UINavigationBar.appearance().isTranslucent = false

    let font:UIFont = UIFont(name: "ProximaNova-Bold", size: 18.0)!
    let navbarTitleAtt = [
        NSAttributedStringKey.font:font,
        NSAttributedStringKey.foregroundColor: UIColor.white
    ]
    UINavigationBar.appearance().titleTextAttributes = navbarTitleAtt
}

And call this func in didFinishLaunchingWithOptions as setupNavigationBarAppearance(). I am using this same code, and it is working fine.