Tukukkk

I'm starting working with Xcode and Swift and I'm now stuck. I did as I learned doing the Apple tutorial on the net, but my problem is that I can't get back to my home page once I saved an item.

I have two views with their controllers: my homepage and my new item page.
I have a navigation controller between them, and I try to go from homepage to newItem page with a button (not a buttonbar). This is working.

I have my segue setup and my prepare function into my newItem page, but once I filled all the required fields, my Save button is enable, but nothing happen when I click on it, and nothing is written as output to help me.

Here are my prepare and unwind function (into homePage):

//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?) {

        super.prepare(for: segue, sender: sender)



        switch(segue.identifier ?? "") {

        case "AddLending":

            os_log("Adding a new lending.", log: OSLog.default, type: .debug)



        case "ShowItems":

            guard segue.destination is NewLendingViewController else {

                fatalError("Unexpected destination: (segue.destination)")

            }



            /*guard let selectedMealCell = sender as? MealTableViewCell else {

                fatalError("Unexpected sender: (sender)")

            }



            guard let indexPath = tableView.indexPath(for: selectedMealCell) else {

                fatalError("The selected cell is not being displayed by the table")

            }



            let selectedMeal = meals[indexPath.row]

            mealDetailViewController.meal = selectedMeal*/



        default:

            fatalError("Unexpected segue identifier: (segue.identifier)")

        }

    }



    //MARK: Actions

    // This function is dealing with calling back the homePage once a lending has been created

    @IBAction func unwindToHomePage(sender: UIStoryboardSegue) {

        if let sourceViewController = sender.source as? NewLendingViewController, let lending = sourceViewController.lending {



            money += lending.amount

            updateMoneyButton()

            // Save tne lendings.

            saveLendings()

        }

    }

And here is my prepare function of my newItem page:

// MARK: - Navigation

    @IBAction func lendingCancelButton(_ sender: UIBarButtonItem) {

        // Depending on style of presentation (modal or push presentation), this view controller needs to be dismissed in two different ways

        let isPresentingInAddLendingMode = presentingViewController is UINavigationController

        if isPresentingInAddLendingMode {

            dismiss(animated: true, completion: nil)

        } else if let owningNavigationController = navigationController {

            owningNavigationController.popViewController(animated: true)

        } else {

            fatalError("the NewLendingViewController is not inside a navigation controller.")

        }

    }





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

        super.prepare(for: segue, sender: sender)



        // Configure the destination view controller only when the saved button is pressed.

        guard let button = sender as? UIBarButtonItem, button === lendingSaveButton else {

            os_log("The saved button was not pressed, cancelling", log: OSLog.default, type: .debug)

            return

        }

        let title = lendingTitle.text ?? ""

        guard let amount = Int(lendingAmount.text ?? "0") else {

            os_log("It seems that the amount entered is incorrect", log: OSLog.default, type: .debug)

            return

        }

        let contact = lendingContact.text ?? ""

        //let date = lendingDate.text ?? ""

        let date = formatStringToDate(date: lendingDate.text ?? "")



        // Set the lending to be passed to HomePageViewController after the unwind segue.

        lending = Lending(amount: amount, title: title, contact: contact, lendingDate: date)



    }

Just to tell, my Cancel button is working fine and correctly leading me back to my homepage.