Cannot Set Navigation Bar Font in Swift on Latest Xcode Version - ios

Question

The following code was running fine before updating to Xcode 6.1 to stay up with iOS 8.1:
override func viewDidAppear(animated: Bool) {
self.navigationController?.navigationBar.topItem?.title = "Home"
self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34), NSForegroundColorAttributeName: UIColor.whiteColor()]
}
The issue is specifically in NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34)
and the error I'm getting here is:
! "Could not find an overload for 'init' that accepts the supplied arguments"
I found this original code on a different StackOverflow question and it was working as expected until this update (downloaded it yesterday). My font is indeed installed properly.
Should I be writing this code differently now, or is there an entirely new way in which I should set my Navigation Bar Font?
Thanks!

Answer 1

Whoops. I figured this out on my own:
I needed an exclamation point following my declaration of the NSFontAttributeName as it requires a type "NSString!". Perhaps it only required an "NSString" before, but I have no issues now.
Working line:
NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 24)!
Working full code:
override func viewDidAppear(animated: Bool) {
self.navigationController?.navigationBar.topItem?.title = "Home"
self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34)!, NSForegroundColorAttributeName: UIColor.whiteColor()]
}
Seems like a silly question now. Hope this helps someone else!

Answer 2

You are using UIFont(name: intializer as it is defined as
init?(name fontName: String, size fontSize: CGFloat) -> UIFont
failable intializer read more from link.So it is returning optional.You need to unwrap it as it require AnyObject not optional.
self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34)!, NSForegroundColorAttributeName: UIColor.whiteColor()]

Answer 3

Thanks Benji!!!
I changed it a bit and applied it to the appearance attribute of the navigation controller.
var navigationBarAppearance = UINavigationBar.appearance()
navigationBarAppearance.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "OpenSans", size: 16)!, NSForegroundColorAttributeName: UIColor.whiteColor()]

Answer 4

It is better to declare your font as conditional , like this way :
if let font = UIFont (name: "AdobeArabic-BoldItalic", size: 20) {
UINavigationBar.appearance().titleTextAttributes = [NSFontAttributeName: font]
}
Doing this , makes sure that your font is already found , that I have installed new font , and when used it without conditional if , it issued an exception , of unwrapping an optional .

Answer 5

override func viewWillLayoutSubviews() {
self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.whiteColor(), NSFontAttributeName : UIFont(name: "Roboto-Regular", size: 14)!]
}

Answer 6

Swift 4.2
Change Small Title when layout scrolled down
override func viewDidAppear(animated: Bool) {
self.navigationController?.navigationBar.topItem?.title = "Home"
self.navigationController?.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34), NSForegroundColorAttributeName: UIColor.whiteColor()]
}
Change Large Title
override func viewDidAppear(animated: Bool) {
self.navigationController?.navigationBar.topItem?.title = "Home"
self.navigationController?.navigationBar.largeTitleTextAttributes = [ NSFontAttributeName: UIFont(name: "Lobster 1.4", size: 34), NSForegroundColorAttributeName: UIColor.whiteColor()]
}