Custom Navigation

final class CustomNavigation: UIView {

    @IBOutlet weak var leftBarBut2: UIButton!
    @IBOutlet var navView: UIView!
    @IBOutlet weak var backBut: UIButton!
    @IBOutlet weak var leftBarBut: UIButton!
    @IBOutlet weak var largeTitle: UILabel!
    @IBOutlet weak var smallTitle: UILabel!

    var title: String = "" {
        didSet {
            largeTitle.text = title
        }
    }

    var subTitle: String = "" {
        didSet {
            smallTitle.text = subTitle
        }
    }

    var isSubTitleHidden: Bool {
        set {
            smallTitle.isHidden = newValue
        }
        get {
            return smallTitle.isHidden
        }
    }

    var isBackButtonHidden: Bool {
        set {
            backBut.isHidden = newValue
        }
        get {
            return backBut.isHidden
        }
    }

    var isLeftBarButtonHidden: Bool {
        set {
            leftBarBut.isHidden = newValue
        }
        get {
            return leftBarBut.isHidden
        }
    }

    var isLeftBarButton2Hidden: Bool {
        set {
            leftBarBut2.isHidden = newValue
        }
        get {
            return leftBarBut2.isHidden
        }
    }

    override func awakeFromNib() {
        self.clipsToBounds = true
        initWithNib()
    }

    private func initWithNib() {
        Bundle.main.loadNibNamed("CustomNavigation", owner: self, options: nil)
        navView.translatesAutoresizingMaskIntoConstraints = false
        addSubview(navView)
        setupLayout()
    }

    private func setupLayout() {
        NSLayoutConstraint.activate([
            navView.topAnchor.constraint(equalTo: topAnchor),
            navView.leadingAnchor.constraint(equalTo: leadingAnchor),
            navView.bottomAnchor.constraint(equalTo: bottomAnchor),
            navView.trailingAnchor.constraint(equalTo: trailingAnchor)
        ])
    }

}