Pass value from one scene to other in iOS app using Swift

Code of ViewController (code of file from where you want to pass value):

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var txt1: UITextField!

    override func viewDidLoad() {

        super.viewDidLoad()

       

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

      

    }

    @IBAction func ClickToPass(_ sender: Any) {

        let mmi  = self.storyboard?.instantiateViewController(withIdentifier: "Second") as! SecondViewController

       

        mmi.passedvalue = txt1.text!

        self.navigationController?.pushViewController(mmi, animated: true)

    }

    

}

Code of SecondViewController (code of file where you want to get value):

import UIKit

class SecondViewController: UIViewController {

    @IBOutlet weak var label1: UILabel!

    var passedvalue = String()

    override func viewDidLoad() {

        super.viewDidLoad()

        label1.text = "Passed value= " + passedvalue

    }

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

        // Dispose of any resources that can be recreated.

    }

}

Screenshots:

Read More

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:

Read More