Fetch all of the Countries supported in UIKit

CountryCodes.swift

//: Playground - noun: a place where people can play

import UIKit

// If you're in a playground, you need to swizzle current locale
extension NSLocale {
    class func jc_currentLocale() -> NSLocale {
        return NSLocale.init(localeIdentifier: "en_AU")
    }
}

let method = class_getClassMethod(NSLocale.self, #selector(NSLocale.currentLocale))
let swizzledMethod = class_getClassMethod(NSLocale.self, #selector(NSLocale.jc_currentLocale))
method_exchangeImplementations(method, swizzledMethod)

let currentLocale = NSLocale.currentLocale()
let countryArray = NSLocale.ISOCountryCodes()
    .flatMap { currentLocale.displayNameForKey(NSLocaleCountryCode, value: $0) }
    .sort { $0.localizedCompare($1) == .OrderedAscending }