Develop an iPhone application that convert birth date into year, month and days in swift.

Code:

ViewController.swift:

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var lblday: UILabel!

  

    @IBOutlet weak var view1: UIView!

    @IBOutlet weak var lblmonth: UILabel!

    @IBOutlet weak var lblyear: UILabel!

    @IBOutlet weak var txtdate: UITextField!

    override func viewDidLoad() {

        super.viewDidLoad()

        view1.isHidden = true

    }

    @IBAction func btnClicked(_ sender: Any) {

        view1.isHidden  = false

        let dateFormatter = DateFormatter()

        dateFormatter.dateFormat = "dd/MM/yyyy"

        let date = dateFormatter.date(from: txtdate.text!)

        let NumOfDays: Int = daysBetweenDates(startDate: date!, endDate: Date())

        let year = NumOfDays/(365)

        let month =  (NumOfDays - (year * 365))/30

        let days = NumOfDays - (year * 365 + month * 30)

        lblyear.text = "\(year)"

        lblmonth.text = "\(month)"

        lblday.text = "\(days)"

    }

    func daysBetweenDates(startDate: Date, endDate: Date) -> Int {

        let calendar = Calendar.current

        let components = calendar.dateComponents([Calendar.Component.day], from: startDate, to: endDate)

        return components.day!

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

}

Result: