Font Extension For Swift

UIFont+SFUIDisplay.swift

import Foundation
import UIKit

struct SFUIDisplayFontType : OptionSetType
{
    let rawValue: Int
    init(rawValue: Int) { self.rawValue = rawValue }

    static internal let None         = SFUIDisplayFontType(rawValue: 0)
    static internal let Bold         = SFUIDisplayFontType(rawValue: 1)
    static internal let Semibold     = SFUIDisplayFontType(rawValue: 2)
    static internal let Heavy        = SFUIDisplayFontType(rawValue: 3)
    static internal let Black        = SFUIDisplayFontType(rawValue: 4)
    static internal let Medium       = SFUIDisplayFontType(rawValue: 5)
    static internal let Regular      = SFUIDisplayFontType(rawValue: 6)
    static internal let Thin         = SFUIDisplayFontType(rawValue: 7)
    static internal let Light        = SFUIDisplayFontType(rawValue: 8)
    static internal let Ultralight   = SFUIDisplayFontType(rawValue: 9)
}

extension UIFont
{
    class func SFUIDisplayFont(type: SFUIDisplayFontType, size: CGFloat)-> UIFont
    {
        var post:String
        switch (type)
        {
        switch (type)
        {
            case SFUIDisplayFontType.Bold:
                post = "Bold"
            break
            case SFUIDisplayFontType.Semibold:
                post = "Semibold"
            break
            case SFUIDisplayFontType.Heavy:
                post = "Heavy"
            break
            case SFUIDisplayFontType.Black:
                post = "Black"
            break
            case SFUIDisplayFontType.Medium:
                post = "Medium"
            break
            case SFUIDisplayFontType.Regular:
                post = "Regular"
            break
            case SFUIDisplayFontType.Thin:
                post = "Thin"
            break
            case SFUIDisplayFontType.Light:
                post = "Light"
            break
            case SFUIDisplayFontType.Ultralight:
                post = "Ultralight"
            break
            default:
                post = "Regular"
            break
        }
        }
        
        let fontName:String = "SFUIDisplay-"+post
        return UIFont(name: fontName, size: size)!
    }
    
    class func SFUIDisplayFontBoldWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Bold", size: size)!
    }
    
    class func SFUIDisplayFontSemiBoldWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Semibold", size: size)!
    }
    
    class func SFUIDisplayFontHeavyWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Heavy", size: size)!
    }
    
    class func SFUIDisplayFontBlackWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Black", size: size)!
    }
    
    class func SFUIDisplayFontMediumWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Medium", size: size)!
    }

    class func SFUIDisplayFontRegularWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Regular", size: size)!
    }
    
    class func SFUIDisplayFontThinWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Thin", size: size)!
    }
    
    class func SFUIDisplayFontLightWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Light", size: size)!
    }
    
    class func SFUIDisplayFontUltraLightWithSize(size: CGFloat) -> UIFont
    {
        return UIFont(name: "SFUIDisplay-Ultralight", size: size)!
    }
}