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iosswiftxcodexcode9.1

tableView(_: cellForRowAtIndexPath) is not called and TableView doesn't show any data

I put a Table View Controller and embed in to a Navigation Controller on IB. After that I create a WalletsTableViewController class with the following code:

class WalletsTableViewController: UITableViewController {

    private var wallets = [Wallet]()

    override func viewDidLoad() {
        super.viewDidLoad()
        fetchWallets()
    }

    private func fetchWallets(){
        let managedObjectContext = AppDelegate.managedContext
        let fetchRequest: NSFetchRequest<Wallet> = Wallet.fetchRequest()
        do {
            wallets = try managedObjectContext.fetch(fetchRequest)
        } catch {
            print(error.localizedDescription)
        }
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection: Int) -> Int {
        return wallets.count
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "WalletCell", for: indexPath) 
        let wallet = wallets[indexPath.row]
        cell.textLabel?.text = wallet.name
        return cell
    }
}

I implement a persistent application that's why I have the fetchWallets() method and it works well. I can print the data to the console but the tableView doesn't want to show my elements. Moreover the implemented tableView() methods are not called. How can I fix this problem?

EDIT: tableView.reloadData() did not help

EDIT2: Here's my storyboard: storyboard

Solution

  • My bad... I did not delete the autoimplemented functions. This has solved my problem.