import UIKit

class FinalRegisterViewController: UIViewController {

    private let dateBirthArray = ["Fecha de Nacimiento"]
    @IBOutlet weak var finalRegisterTableView: UITableView!


    let birthDateCell = DateViewCell()

     private let birthDateToolBar : UIToolbar = {
       let dateToolBar = UIToolbar()
         return dateToolBar
     }()

     private let birthDatePicker : UIDatePicker = {
       let datePicker = UIDatePicker()
        datePicker.addTarget(self, action: #selector (.dateValueChange(birthDatePicker : )), for: .valueChanged)
        return datePicker
    }()

override func viewDidLoad() {
        super.viewDidLoad()

     view.addSubview(birthDatePicker)
     view.addSubview(birthDateToolBar)
     birthDateCell.dateTextField?.inputView = birthDatePicker
     birthDateCell.dateTextField?.inputAccessoryView = birthDateToolBar
     birthDatePicker.isHidden = true
     birthDateToolBar.isHidden = true

     setUpBirthDatePicker()
     setUpDateToolBar()
     setUpButtonToolBar()

 }


private func setUpBirthDatePicker(){
        birthDatePicker.datePickerMode = .date
        birthDatePicker.backgroundColor = .white
        birthDatePicker.translatesAutoresizingMaskIntoConstraints = false
        birthDatePicker.heightAnchor.constraint(equalToConstant: 156).isActive = true
        birthDatePicker.leadingAnchor.constraint(equalTo: self.view.leadingAnchor, constant: 0).isActive = true
        birthDatePicker.trailingAnchor.constraint(equalTo: self.view.trailingAnchor, constant: 0).isActive = true
        birthDatePicker.bottomAnchor.constraint(equalTo: self.view.bottomAnchor, constant: 0).isActive = true
    }

    @objc private func dateValueChange(birthDatePicker : UIDatePicker){

        let textDateFormatter = DateFormatter()
        textDateFormatter.dateFormat = "dd/MM/yyyy"
        birthDateCell.dateTextField?.text = textDateFormatter.string(from: birthDatePicker.date)
        birthDateCell.dateTextField?.inputView = birthDatePicker
    }

 @objc func doneDateButtonPressed(sender : UIBarButtonItem){
        birthDatePicker.isHidden = true
        birthDateToolBar.isHidden = true
    }

}

import UIKit

class DateViewCell: UITableViewCell {

    @IBOutlet weak var dateLabel: UILabel!
    @IBOutlet weak var dateTextField: UITextField!


    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code
    }

}