Vfrdtyky

I have been working on this issue for two days now and sadly I cannot figure out the issue to my problem. I'm trying to take one item from my initial one time view controller and send that to my main view controller where it will be saved within the main view controller and will appear upon that controller when reloading the app.

Here is my app delegate code for the "first time" view controller

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {



    if UserDefaults.standard.bool(forKey: "firstTimer") {

    let storyBoard = UIStoryboard.init(name: "Main", bundle: nil)

    let mainView = storyBoard.instantiateViewController(withIdentifier: "MainViewControllerID")

        let nav = UINavigationController(rootViewController: mainView)

        nav.navigationBar.isHidden = true

        self.window?.rootViewController = nav

    }

    return true

}

containers and saveContext are default

import UIKit



import CoreData



class FirstTimeViewController: UIViewController {



let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext

 private var appDelegate = UIApplication.shared.delegate as! AppDelegate

private var player = [Player]()











@IBOutlet weak var nameTextField: UITextField!



override func viewDidLoad() {

    super.viewDidLoad()



    // Do any additional setup after loading the view.

}



// This View Controller will only be used once upon the first time the app is being used.



// MARK: Make func that prepares for segue on initial opening of app





override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    if segue.identifier == "toMainViewController" {

        let mainViewController = segue.destination as! UINavigationController

        let destination = mainViewController.topViewController as! MainViewController

        if let newPlayer = self.nameTextField.text{

            destination.name.name = newPlayer

            destination.playerData.name = newPlayer

            saveItems()

        }

    }



}



@IBAction func continueButtonPressed(_ sender: UIStoryboardSegue) {

    UserDefaults.standard.set(true, forKey: "firstTimer")

    let mainPlayer = PlayerData()

    let player1 = Player(entity: Player.entity(), insertInto: context)

    player1.name = mainPlayer.name

    performSegue(withIdentifier: "toMainViewController", sender: self)

    saveItems()

}





func saveItems() {

    do {

    try context.save()

        print("File Successfully saved!")

    }catch {

       print("Error saving Context (error)")

    }

}







// MARK: Function to Save and Load data??

/*

// MARK: - Navigation



// In a storyboard-based application, you will often want to do a little preparation before navigation

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    // Get the new view controller using segue.destination.

    // Pass the selected object to the new view controller.

}

*/



func loadItems() {

    let request = Player.fetchRequest() as NSFetchRequest<Player>

    do {

        player = try context.fetch(request)

        print("Info loaded")

    } catch {

        print("Error fetching data from context (error)")

    }

}

}

MainViewController being sent the information. I only want to send one item and save it to that main view controller.

import UIKit

import Foundation

import CoreData



class MainViewController: UIViewController {

//set up model object, buttons, and labels

//    let player: Player!

let context = (UIApplication.shared.delegate as!          AppDelegate).persistentContainer.viewContext

private var appDelegate = UIApplication.shared.delegate as! AppDelegate

//    lazy var nameText = Player(context: context)

//    var playerInfo = [Player]()

lazy var player = [Player]()

let playerData = PlayerData()

var name = ""





@IBOutlet weak var playerName: UILabel!



@IBOutlet weak var currentLevel: UILabel!



@IBOutlet weak var xpCounter: UILabel!



@IBOutlet weak var playerProfileImage: UIImageView!







override func viewDidLoad() {

    super.viewDidLoad()



//        loadItems()

//        name = playerData.name

    if let nameOfPlayer = name.name {

        print("This is what we see: (nameOfPlayer)")

    playerName.text = nameOfPlayer

    }

    appDelegate.saveContext()



}



override func viewWillAppear(_ animated: Bool) {

    super.viewWillAppear(animated)

//        loadView()



}



@IBAction func menuButtonPressed(_ sender: Any) {



}



func loadItems() {

    let request = Player.fetchRequest() as NSFetchRequest<Player>

    do {

        player = try context.fetch(request)

        print("Info loaded")

    } catch {

        print("Error fetching data from context (error)")

    }

}

// MARK : Add Name to Main View





// MARK : Add Xp To Main View



// MARK : Add UI Image to profile image view



// MARK:  (Optional) Create a 'Choose a task button to segue to the task tab'





// MARK: Program the Progress Bar to update on xp gained and reset on level up





// MARK: Function to Save and Load data??

}

If dataSource code needed I will add upon request.

Thanks!

Code is wrong. You should do more check

This is what I was able to achieve:

import UIKit

import CoreData

class FirstTimeViewController: UIViewController {



    private var player = [Player]()

    private var appDelegate = UIApplication.shared.delegate as! AppDelegate

    private let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext









    @IBOutlet weak var nameTextField: UITextField!



    override func viewDidLoad() {

        super.viewDidLoad()



        // Do any additional setup after loading the view.

    }



    // This View Controller will only be used once upon the first time the app is being used.



    // MARK: Make func that prepares for segue on initial opening of app





    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

        if segue.identifier == "toMainViewController" {

            let entity = NSEntityDescription.entity(forEntityName: "Player", in: context)



            let newPlayer = NSManagedObject(entity: entity!, insertInto: context)



            if let newUser = self.nameTextField.text{

                newPlayer.setValue(newUser, forKey: "name")

                print("This is what i got: ", newPlayer)

            }

            appDelegate.saveContext()

        }



    }



    @IBAction func continueButtonPressed(_ sender: UIStoryboardSegue) {

        UserDefaults.standard.set(true, forKey: "firstTimer")



        performSegue(withIdentifier: "toMainViewController", sender: self)

    }

And for the Main View Controller:

import UIKit

import Foundation

import CoreData



class MainViewController: UIViewController {



    //set up model object, buttons, and labels



    let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext

    private var appDelegate = UIApplication.shared.delegate as! AppDelegate

    lazy var player = [Player]()





    @IBOutlet weak var playerName: UILabel!



    @IBOutlet weak var currentLevel: UILabel!



    @IBOutlet weak var xpCounter: UILabel!



    @IBOutlet weak var playerProfileImage: UIImageView!







    override func viewDidLoad() {

        super.viewDidLoad()



    let request = NSFetchRequest<NSFetchRequestResult>(entityName: "Player")

    //        request.predicate = NSPredicate(format: "name = %@", "noon")

        request.returnsObjectsAsFaults = false



        do {

            let result = try context.fetch(request)

            for data in result as! [NSManagedObject] {

                print(data.value(forKey: "name") as! String)

                self.playerName.text = data.value(forKey: "name") as? String

            }



        } catch {

            print("Failed")

        }







    }



    override func viewWillAppear(_ animated: Bool) {

        super.viewWillAppear(animated)

    //        loadView()



    }



    @IBAction func menuButtonPressed(_ sender: Any) {



    }