how can i reuse UIView Swift ?

gistfile1.txt

    var sparteLine : UIView = {
        var view = UIView()
        view.backgroundColor = UIColor.blue
        view.translatesAutoresizingMaskIntoConstraints = false
        return view
    }()
    
     //Dish Comment
    var disComment : LeftPaddingLabel = {
        var label = LeftPaddingLabel()
        label.text = "Commment(Optional)"
        label.textColor = UIColor.black
        label.textAlignment = .left
        label.backgroundColor = UIColor.gray
        label.translatesAutoresizingMaskIntoConstraints = false
        return label
    }()
    
    var disCommentTextField : LeftPaddingTextField = {
        var tf = LeftPaddingTextField()
        tf.backgroundColor = UIColor.darkGray
        tf.borderStyle = UITextBorderStyle.roundedRect
        tf.translatesAutoresizingMaskIntoConstraints = false
        return tf
    }()

    
     override func setupViews(){
        backgroundColor = UIColor.brown
        
        addSubview(sparteLine)
        addSubview(disComment)
        addSubview(disCommentTextField)
        addSubview(sparteLine)
        
         //Mark :- sparteLine
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.top, relatedBy: .equal, toItem: dishTotal, attribute: .bottom, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.left, relatedBy: .equal, toItem: self, attribute: NSLayoutAttribute.left, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.right, relatedBy: .equal, toItem: self, attribute: NSLayoutAttribute.right, multiplier: 1, constant: -10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: .height, relatedBy: .equal, toItem: self, attribute: .height, multiplier:0, constant: 5).isActive = true
        
        //Mark:- disComment
        
        NSLayoutConstraint(item: disComment, attribute: .top, relatedBy: .equal, toItem: sparteLine, attribute: .bottom, multiplier: 1, constant: 15).isActive = true
        
        NSLayoutConstraint(item: disComment, attribute: .left, relatedBy: .equal, toItem: self, attribute: .left, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: disComment, attribute: .right, relatedBy: .equal, toItem: self, attribute: .right, multiplier: 1, constant: -10).isActive = true
        
        
        //Mark:- disCommentTextField
        
        NSLayoutConstraint(item: disCommentTextField, attribute: .top, relatedBy: .equal, toItem: disComment, attribute: .bottom, multiplier: 1, constant: 5).isActive = true
        
        NSLayoutConstraint(item: disCommentTextField, attribute: .left, relatedBy: .equal, toItem: self, attribute: .left, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: disCommentTextField, attribute: .right, relatedBy: .equal, toItem: self, attribute: .right, multiplier: 1, constant: -10).isActive = true
        
        NSLayoutConstraint(item: disCommentTextField, attribute: .height, relatedBy: .equal, toItem: self, attribute: .height, multiplier: 0, constant: 100).isActive = true
        
        //Mark:- sparteLine 
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.top, relatedBy: .equal, toItem: disCommentTextField, attribute: .bottom, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.left, relatedBy: .equal, toItem: self, attribute: NSLayoutAttribute.left, multiplier: 1, constant: 10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: NSLayoutAttribute.right, relatedBy: .equal, toItem: self, attribute: NSLayoutAttribute.right, multiplier: 1, constant: -10).isActive = true
        
        NSLayoutConstraint(item: sparteLine, attribute: .height, relatedBy: .equal, toItem: self, attribute: .height, multiplier:0, constant: 5).isActive = true
        
  
       }