A custom cell with a title label, a text field and an error label

CustomCell.swift

class CustomCell: UITableViewCell {
    
    var textField: UITextField!
    var titleLabel: UILabel!
    var errorLabel: UILabel!
    
    static var identifier: String {
        return "\(CustomCell.self)"
    }
    
    override func awakeFromNib() {
        super.awakeFromNib()
        commonInit()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        commonInit()
    }
    
    func commonInit() {
        self.selectionStyle = .none
        
        errorLabel = UILabel()
        errorLabel.textColor = .red
        errorLabel.text = "Error message goes here."
        errorLabel.font = UIFont.systemFont(ofSize: 10)
        
        textField = UITextField()
        textField.font = UIFont.systemFont(ofSize: 16)
        textField.borderStyle = .roundedRect
        
        titleLabel = UILabel()
        titleLabel.font = UIFont.boldSystemFont(ofSize: 14)
        titleLabel.textColor = UIColor(red: 2/255, green: 145/255, blue: 121/255, alpha: 1.0)
        
        titleLabel.translatesAutoresizingMaskIntoConstraints = false
        textField.translatesAutoresizingMaskIntoConstraints = false
        errorLabel.translatesAutoresizingMaskIntoConstraints = false
        
        contentView.addSubview(titleLabel)
        contentView.addSubview(textField)
        contentView.addSubview(errorLabel)
        
        contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-18-[titleLabel(80)]-[textField]-18-|", options: [], metrics: nil, views: ["titleLabel": titleLabel, "textField": textField]))
        contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-18-[errorLabel]-18-|", options: [], metrics: nil, views: ["errorLabel": errorLabel]))
        
        contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-[titleLabel(30)][errorLabel(16)]|", options: [], metrics: nil, views: ["titleLabel": titleLabel, "errorLabel": errorLabel]))
        contentView.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-[textField(30)][errorLabel(16)]|", options: [], metrics: nil, views: ["textField": textField, "errorLabel": errorLabel]))
    }
    
    public func configure(title: String) {
        titleLabel.text = title.appending(":")
    }
}