UITextField with Date picker

JSDatePicker.swift

//
//  JSDateField.swift
//
//
//  Created by John Spiropoulos on 21/11/2016.
//  Copyright © 2016 Programize. All rights reserved.
//

import UIKit

class JSDateField: UITextField {
    
    private var privateDate: Date?
    var date: Date? {
        set {
            privateDate = newValue
            if !isFirstResponder {
                datePicker.setDate(newValue!, animated: false)
            }
        }
        get {
            return privateDate
        }
    }
    
    private lazy var dateFormatter = DateFormatter()
    
    @IBInspectable var dateFormat: String = "dd/MM/yyyy" {
        didSet {
            dateFormatter.dateFormat = dateFormat
        }
    }
    
    private lazy var datePicker = UIDatePicker()
    
    var datePickerMode: UIDatePickerMode = .date {
        didSet {
            datePicker.datePickerMode = datePickerMode
        }
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        initialize()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        initialize()
    }
    
    private func initialize() {
        datePicker.maximumDate = Date()
        datePicker.timeZone =  TimeZone.current
        dateFormatter.timeZone = TimeZone.current
        dateFormatter.dateFormat = dateFormat
        if date != nil {
            datePicker.setDate(date!, animated: false)
        }
        datePicker.addTarget(self, action: #selector(didSelectDate(_:)), for: .valueChanged)
        datePicker.datePickerMode = datePickerMode
        datePicker.timeZone = .current
        inputView = datePicker
        
        
    }
    
    
    @objc private func didSelectDate(_ sender: UIDatePicker) {
        date = sender.date
        text = dateFormatter.string(from: sender.date)
    }
    
    
    
}