// MARK: - UIView
  public override init(frame: CGRect) {
    super.init(frame: frame)

    // Add six digitLabels
    var frame = CGRect(x: 15, y: 10, width: 35, height: 40)
    for index in 1...6 {
      let digitLabel = UILabel(frame: frame)
      digitLabel.font = .systemFont(ofSize: 42)
      digitLabel.tag = index
      digitLabel.text = "–"
      digitLabel.textAlignment = .center
      addSubview(digitLabel)
      frame.origin.x += 35 + 15
    }
  }

let frame = CGRect(x: (view.frame.width-315)/2, y: helpLabelText.frame.origin.y, width: 315, height: 60)
        let codeInputView = CodeInputView(frame: frame)
        codeInputView.delegate = self as? CodeInputViewDelegate
        view.addSubview(codeInputView)
        codeInputView.becomeFirstResponder()

codeInputView.frame = helpLabelText.frame.offsetBy(dx: 0, dy: helpLabelText.frame.height)
helpLabelText.superview?.addSubview(codeInputView)