var title: String {
        switch self {
        case .ko: return NSLocalizedString("Korean", comment: "한국어")
        case .en: return NSLocalizedString("English", comment: "영어")
        case .ja: return NSLocalizedString("Japanese", comment: "일본어")
        case .ch: return NSLocalizedString("Chinese", comment: "중국")
        }
    }

    private lazy var stackView : UIStackView = {
        let stackView = UIStackView()
        stackView.axis = .vertical
        stackView.distribution = .equalSpacing
        stackView.spacing = 16
        
        stackView.layoutMargins = UIEdgeInsets(top: 16, left: 16, bottom: 16, right: 16)
        stackView.isLayoutMarginsRelativeArrangement = true
    
        return stackView
    }()

   private lazy var textView: UITextView = {
       let textView = UITextView()
       textView.text = placeholderText
       textView.textColor = .secondaryLabel
       textView.font = .systemFont(ofSize: 18.0, weight: .semibold)
       textView.returnKeyType = .done
       textView.delegate = self
       return textView
   }()

extension SourceTextViewController: UITextViewDelegate {
   
   func textViewDidBeginEditing(_ textView: UITextView) {
       guard  textView.textColor == .secondaryLabel else { return }
       textView.text = nil
       textView.textColor = .label

   }
   
   func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
       guard text == "\n" else { return true }
       
       delegate?.didEnterText(textView.text)
       dismiss(animated: true, completion: nil)
       
       return true
   }
   
}

   if #available(iOS 15, *) {
      let appearance = UITabBarAppearance()
      let tabBar = UITabBar()
      appearance.configureWithOpaqueBackground()
      appearance.backgroundColor = UIColor.white
      tabBar.standardAppearance = appearance;
      UITabBar.appearance().scrollEdgeAppearance = appearance
    }