A Swift function to loop over all available font families and print out the different font names. You need this if you want to use custom fonts in your app and pass in the name for the UIFont class.

Enumerate available font names

func enumerateFonts(){

        for fontFamily in UIFont.familyNames() {
            
            println("Font family name = \(fontFamily as String)");
            
            for fontName in UIFont.fontNamesForFamilyName(fontFamily as String) {
                
                println("- Font name = \(fontName)");
                
            }
            
            println("\n");
            
        }

    }

Swift 3

func enumerateFonts()
    {
        for fontFamily in UIFont.familyNames
        {
            print("Font family name = \(fontFamily as String)")
            for fontName in UIFont.fontNames(forFamilyName: fontFamily as String)
            {
                print("- Font name = \(fontName)")
            }
        }
    }