NSFontAttributeName has changed to String

Question

i\'m trying to style the navigation bar properly, i need to change the font to helvetica neue with a size point of 19. I\'ve ever used this code but i\'ve notice that now do

Answer 1

Swift 4.2

NSAttributedStringKey has renamed to NSAttributedString.Key in Swift 4.2

if let fontStyle = UIFont(name: "HelveticaNeue-Light", size: 19) {
  navigationController?.navigationBar.titleTextAttributes = [NSAttributedString.Key.font: fontStyle]
}