Multilanguage functionality in swift 3 - ios

Question

I am following below link for multilanguage functionality in my app but when i am changing the language of Finnish i.e "fi" to chineese simplified i.e "zh-Hans" then it is not wokring.
Change Language in the app programmatically
Here is code:
class LanguageManager: NSObject {
var availableLocales = [CustomLocale]()
static let sharedInstance = LanguageManager()
var lprojBasePath = String()
override fileprivate init() {
super.init()
let english = CustomLocale(languageCode: GlobalConstants.englishCode, countryCode: "gb", name: "United Kingdom")
let finnish = CustomLocale(languageCode: GlobalConstants.finnishLangCode, countryCode: "cn", name: "China")
self.availableLocales = [english,finnish]
self.lprojBasePath = getSelectedLocale()
}
fileprivate func getSelectedLocale()->String{
let lang = Locale.preferredLanguages//returns array of preferred languages
let languageComponents: [String : String] = Locale.components(fromIdentifier: lang[0])
if let languageCode: String = languageComponents["kCFLocaleLanguageCodeKey"]{
for customlocale in availableLocales {
if(customlocale.languageCode == languageCode){
return customlocale.languageCode!
}
}
}
return "en"
}
func getCurrentBundle()->Bundle{
if let bundle = Bundle.main.path(forResource: lprojBasePath, ofType: "lproj"){
return Bundle(path: bundle)!
}else{
fatalError("lproj files not found on project directory. /n Hint:Localize your strings file")
}
}
func setLocale(_ langCode:String){
UserDefaults.standard.set([langCode], forKey: "AppleLanguages")//replaces Locale.preferredLanguages
UserDefaults.standard.synchronize()
self.lprojBasePath = getSelectedLocale()
}
}
class CustomLocale: NSObject {
var name:String?
var languageCode:String?
var countryCode:String?
init(languageCode: String,countryCode:String,name: String) {
self.name = name
self.languageCode = languageCode
self.countryCode = countryCode
}
}