Swift function for UINavigationItem extension to set title and subtitle in iOS navigation bar

SetTitleAndSubtitleInNavigationBar.swift

extension UINavigationItem {
  
    //Function to set title and subtitle in navigation bar
    func setTitle(title:String, subtitle:String) {
        
        let titleLabel = UILabel()
        titleLabel.text = title
        titleLabel.font = UIFont(name: "Roboto-Regular", size: 17)
        titleLabel.textColor = UIColor.white
        titleLabel.sizeToFit()
        
        let subTitleLabel = UILabel()
        subTitleLabel.text = subtitle
        subTitleLabel.font = UIFont(name: "Roboto-Light", size: 14)
        subTitleLabel.textColor = UIColor.white
        subTitleLabel.textAlignment = .center
        subTitleLabel.sizeToFit()
        

        let stackView = UIStackView(arrangedSubviews: [titleLabel, subTitleLabel])
        stackView.distribution = .equalCentering
        stackView.axis = .vertical
        
        let width = max(titleLabel.frame.size.width, subTitleLabel.frame.size.width)
        stackView.frame = CGRect(x: 0, y: 0, width: width, height: 35)
        
        titleLabel.sizeToFit()
        subTitleLabel.sizeToFit()
        
        self.titleView = stackView
    }
}