How do I change navigationBar font in Swift?

Question

This is what I have tried so far, but receiving an error (I have correctly implemented CaviarDreams to the project):

self.navigationController.navigationBar.titleTextAttributes = NSFontAttributeName[UIFont .fontWithName(CaviarDreams.ttf, size: 20)]

Error says: Use of unresolved identifier 'CaviarDreams

Venule

Answer 1

Try this:

self.navigationController.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "CaviarDreams", size: 20)!]

Edit: Now, UIFont must be unwrapped to be able to be used here.

Swift 5 (+ safe handling of optional UIFont)

self.navigationController?.navigationBar.titleTextAttributes = [ NSAttributedString.Key.font: UIFont(name: "Caviar-Dreams", size: 20) ?? UIFont.systemFont(ofSize: 20)]

Lamarckian

Worked like a charm, thanks. Have been fumbling around with this for an hour or so, trying to figure it out myself, Swift you know, kinda new to it. :P – Venule

Note: NSFontAttributeName is now of type String so this code doesn't work. – Eyot

@Eyot don't understand how to fix this. Do you have suggestions? – Abdominous

NSFontAttributeName is still a String. I think Dehli meant that UIFont(...) now returns a UIFont? instead of a UIFont. See UIFont.h for details. benaneesh's answer solves the error relating to these that you'll see when you upgrade to the latest Xcode. – Brought

For Swift 4, NSFontAttributeName was renamed. It is titleTextAttributes = [NSAttributedString.Key.font: UIFont.boldSystemFont(ofSize: 23)] now. – Joppa

Answer 2

Using Swift, I added this to AppDelegate.swift in

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        UINavigationBar.appearance().titleTextAttributes = [
            NSFontAttributeName: UIFont(name: "DINNextLTW04-Regular", size: 20)!
        ]

        return true
    }

Hope it helps!

Countervail

Your solution is awesome. – Shewchuk

Modeled it after you my friend :) – Countervail

Much better approach. Thanks! – Archeology

NSFontAttributeName was now changed to --->> NSAttributedStringKey.font – Eugenol

Answer 3

Swift 2.0:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        UINavigationBar.appearance().titleTextAttributes = [
            NSFontAttributeName: UIFont(name: "Arial-Regular", size: 30)!
        ]

        return true
    }

Or

 override func viewDidLoad() {
  super.viewDidLoad()

  self.navigationController?.navigationBarHidden =  false
  self.title = "SAMPLE"

//Set Color
  let attributes: AnyObject = [ NSForegroundColorAttributeName: UIColor.redColor()]
  self.navigationController!.navigationBar.titleTextAttributes = attributes as? [String : AnyObject]


//Set Font Size
  self.navigationController!.navigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "Arial", size: 37.0)!];

 }

Cuneate

Hi Alvin, when I put in your font size line in viewDidLoad() (xcode 7.3.1), it compiles fine but at (simulator) run time it crashes with EXC_BAD_INSTRUCTION (code=EXC_1386_INVOP, subcode=0x0) with console msg "fatal error: unexpectedly found nil while unwrapping an Optional value". I have the navigation bar in the FirstViewController of a tabbed view template. Might you have any suggestions? Thanks – Hypnosis

This works now: UINavigationBar.appearance().titleTextAttributes = [ NSForegroundColorAttributeName : UIColor.blueColor(), NSFontAttributeName : UIFont(name: "Bradley Hand", size: 28)! ] – Hypnosis

Answer 4

Now you have to unwrap (!) it first so its not of type UIFont?:

self.navigationController.navigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "<font-name>", size: <size>)!]

Polygamist

Answer 5

For Swift 2.3

self.navigationController!.navigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "Roboto-Bold", size: 20.0)!, NSForegroundColorAttributeName : UIColor.whiteColor()];

Erewhile

Answer 6

Swift 4

if let font = UIFont(name: "FontName", size: 16) {

 self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.font: font]

}

Or as the other answer recommended doing it on the AppDelegate:

  if let font = UIFont(name: "FontName", size: 16) {

    UINavigationBar.appearance().titleTextAttributes = [
          NSAttributedStringKey.font: font]

}

Foresaid

Answer 7

Swift 4.2

Change Large Title

self.navigationController!.navigationBar.largeTitleTextAttributes = [.font: UIFont.systemFont(ofSize: 22)]

Change Small Title when layout scrolled down

self.navigationController!.navigationBar.titleTextAttributes = [.font: UIFont.systemFont(ofSize: 14)]

Durkee

Answer 8

Swift 4.2

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
  // Override point for customization after application launch.

  let font = UIFont(name: "FontName", size: 16) ?? UIFont.systemFont(ofSize: 16)
  UINavigationBar.appearance().titleTextAttributes = [.font: font]
}

Transudation

Answer 9

Swift 4.2

 self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedString.Key.font: UIFont(name: "Helvetica", size: 18.0)!]

Lapidate

You can do just .font instead of NSAttributedString.Key.font – Godman