21092020-iOS-MRCountryPicker-solution.swift

func setup() {
        
    // Loading a JSON with our country list.
    // If our data is invalid, make sure to catch it early in the development process.
    let frameworkBundle = Bundle(for: type(of: self))
    let defaultCountriesJSONPath = frameworkBundle.path(forResource: "SwiftCountryPicker.bundle/Data/countryCodes",
                                                        ofType: "json")!
    let defaultCountriesJSONData = try! Data(contentsOf: URL(fileURLWithPath: defaultCountriesJSONPath))
    let defaultCountriesDictionaries = try! JSONSerialization.jsonObject(with: defaultCountriesJSONData,
                                                                         options: .allowFragments) as! NSArray

    countries = defaultCountriesDictionaries.map { Country(dictionary: $0 as! NSDictionary) }

    if let code = Locale.current.languageCode {
        self.selectedLocale = Locale(identifier: code)
    }

    super.dataSource = self
    super.delegate = self
}