let datePicker =  UIDatePicker()
    let toolBar = UIToolbar()
    
    var pickedDate = ""
    var dobTimeStamp = ""
    
    override func viewDidLoad() {
        super.viewDidLoad()
      
        createDatePicker()
    }


// MARK: - Date Picker

extension SignUpViewController {
    
    func createDatePicker() {
        toolBar.sizeToFit()
     //   toolBar.layer.frame.size = CGSize(width: 414, height: 500)
        
        let doneBtn = UIBarButtonItem(barButtonSystemItem: .done, target: nil, action: #selector(donePressed))
        toolBar.setItems([doneBtn], animated: true)
        datePicker.preferredDatePickerStyle = .wheels
        datePicker.datePickerMode = .date
    }
    
    @objc func donePressed() {
        let dateFormatter: DateFormatter = DateFormatter()
        dateFormatter.dateFormat = "dd MMM,yyyy"
        pickedDate = dateFormatter.string(from: datePicker.date)
        print("picked Date : ", pickedDate)
        let myTimeStamp = Int(self.datePicker.date.timeIntervalSince1970)
        dobTimeStamp = String(myTimeStamp * 1000)
        self.view.endEditing(true)
    }
}

// MARK: Text Field

extension SignUpViewController: UITextFieldDelegate {
    
    func textFieldDidBeginEditing(_ textField: UITextField) {
        
        if textField.tag == 4 {
            textField.inputAccessoryView = toolBar
            textField.inputView = datePicker
            datePicker.maximumDate = Date()
        }
    }
}