Using custom font for entire iOS app swift

Question

I know that to set a custom font of an element on the screen I can simply dosomeLabel.font=UIFont(name: \"Exo 2.0\", size: 15).

I was wondering how one

Answer 1

FINALLY figured this out. Cleanest way I could find. (Swift 4) Solution doesn't require you to set font sizes and won't override all font sizes.

  UILabel.appearance().font = UIFont.preferredFont(forTextStyle: UIFontTextStyle(rawValue: "Roboto"))

For those looking for where to place this code. I put it in my AppDelegate.swift file inside of

 func application(_ application: UIApplication, 
 didFinishLaunchingWithOptions...

Swift 4.2

 UILabel.appearance().font = UIFont.preferredFont(forTextStyle: UIFont.TextStyle(rawValue: "Roboto"))