How can I change the font of the back button for my navigation bar?

Question

How can I change the font of the back button for my navigation bar.

The back button is either \"back\" or the title from the previous view controller.

I tho

Answer 1

For iOS 13, Swift 5.1:

let fontAttr = [NSAttributedString.Key.font: \*your font*\]

let buttonAppearance = UIBarButtonItemAppearance()
buttonAppearance.normal.titleTextAttributes = fontAttr

let navbarAppearance = UINavigationBarAppearance()
navbarAppearance.buttonAppearance = buttonAppearance
UINavigationBar.appearance().standardAppearance = navbarAppearance