DatePicker : Dynamic

//

//  ViewController.swift

//  TestApp1

//

//  Created by Divakar Singh on 3/1/17.

//  Copyright (c) 2017 Divakar Singh. All rights reserved.

//

import UIKit

class ViewController: UIViewController, UIPickerViewDelegate {

    

    private var myTextField: UITextField!

    

    override func viewDidLoad() {

        super.viewDidLoad()

        

        // make DatePicker

        let myDatePicker: UIDatePicker = UIDatePicker()

        

        // setting properties of the datePicker

        myDatePicker.frame = CGRectMake(0, 50, self.view.frame.width, 200)

        myDatePicker.timeZone = NSTimeZone.localTimeZone()

        myDatePicker.backgroundColor = UIColor.whiteColor()

        myDatePicker.layer.cornerRadius = 5.0

        myDatePicker.layer.shadowOpacity = 0.5

        

        // add an event called when value is changed.

        myDatePicker.addTarget(self, action: "onDidChangeDate:", forControlEvents: .ValueChanged)

        

        // add DataPicker to the view

        self.view.addSubview(myDatePicker)

        

        // make UITextField to show the selected value

        myTextField = UITextField(frame: CGRectMake(0,0,200,30))

        myTextField.text = ""

        myTextField.borderStyle = UITextBorderStyle.RoundedRect

        myTextField.layer.position = CGPoint(x: self.view.bounds.width/2,y: self.view.bounds.height - 100);

        

        // add UITextField to the view

        self.view.addSubview(myTextField)

    }

    

    @IBAction func onDidChangeDateByOnStoryboard(sender: UIDatePicker) {

        self.onDidChangeDate(sender)

    }

    

    // called when the date picker called.

    internal func onDidChangeDate(sender: UIDatePicker){

        

        // date format

        let myDateFormatter: NSDateFormatter = NSDateFormatter()

        myDateFormatter.dateFormat = "MM/dd/yyyy hh:mm"

        

        // get the date string applied date format

        let mySelectedDate: NSString = myDateFormatter.stringFromDate(sender.date)

        myTextField.text = mySelectedDate as String

    }

    

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

    }

}