Save the state of checkmarked cell in table view in swift 4.2

I have made a table view in a view controller and populating it programmatically. I am able to checkmark on cell at a time as i wanted but when i come back to that screen, it is not there.

These are my arrays:

let devCourses = [("Sound"),("Vibrate"),("Both"),("None")]

let devCousesImages = [UIImage(named: "speaker"), UIImage(named: "Group 1094"), UIImage(named: "Group 1093"), UIImage(named: "speaker-1")]

Here is my code for didSelectRowAt:

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark

    }

Here is the code for didDeselectRowAt:

func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
        tableView.cellForRow(at: indexPath)?.accessoryType = .none
    }



func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell=tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath as IndexPath) as! VibTableViewCell

        let courseTitle = devCourses[indexPath .row]

        let Images = devCousesImages[indexPath .row]

        cell.label.text=courseTitle
        cell.label.textColor = UIColor.darkGray
        cell.photo.image=Images

        return cell
    }

I want the checkmark to be there when i get back to the screen

You can use my solution.

Save state of your cells in plist file with NSCoder. Even you restart your app - you don't lose your data.

import UIKit

class TableViewController: UITableViewController {

    var itemsArray : [Item] = [Item(name: "mom", done: true), Item(name: "pap", done: false), Item(name: "Lena", done: false), Item(name: "Gleb", done: false), Item(name: "Sasha", done: false), Item(name: "Max", done: false)]


    /* path to custom plist file */
    let dataFilePath = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first?.appendingPathComponent("Items.plist")

    override func viewDidLoad() {
        super.viewDidLoad()

        if let filePath = dataFilePath {
            print(filePath)
        }

        loadData()
    }

    // MARK: - Table view data source

    override func numberOfSections(in tableView: UITableView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        return itemsArray.count
    }


    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
        let item = itemsArray[indexPath.row]
        cell.accessoryType = item.done ? .checkmark : .none
        cell.textLabel?.text = item.name
        // Configure the cell...

        return cell
    }

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        itemsArray[indexPath.row].done = !itemsArray[indexPath.row].done

        /* when state is changed - save it to plist file */
        saveDate()

        tableView.deselectRow(at: indexPath, animated: true)
    }


    /* save array to plist file (you can see it inside folder from consol) */
    func saveDate() {
        let encoder = PropertyListEncoder()
        do {
            let data = try encoder.encode(itemsArray)
            try data.write(to: dataFilePath!)
        } catch {
            print(error.localizedDescription)
        }
        self.tableView.reloadData()
    }


    /* load data from plist file */
    func loadData() {

        if let data = try? Data(contentsOf: dataFilePath!) {
            let decoder = PropertyListDecoder()
            do {
                itemsArray = try decoder.decode([Item].self, from: data)
            } catch {
                print(error.localizedDescription)
            }
        }

    }
}

dataModel:

import Foundation

struct Item : Encodable, Decodable {
    var name : String = ""
    var done : Bool = false
}