Print CoreData on tableview cell

Question

I have 2 different test cases here. In case 1 this is what I used to print the entire amount of entries from CoreData and it works. I have tried to do the exact same thing in app2 but it does not work. All I want to do is in each individual cell with all of the core data entries.

APP1

override func viewDidLoad() {
    super.viewDidLoad()
    user = coreDataHandler.getSortedData()

    for i in user! {
        displayL.text = String(i.username)
    }
}

APP2

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    user = coreDataHandler.getSortedData()

    return user!.count
}

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

    for i in user! {
        cell?.textLabel?.text = String(describing: i.username)
        return cell!
    }

    return cell!
}

Answer 1

if you want to print all the user entry in each cell then you can try below solution,

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    user = coreDataHandler.getSortedData()

    return user!.count
}

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

    for i in user! {
        cell?.textLabel?.text = String(describing: i.username)
    }

    return cell!
}

and if you want to print each entry in each cell the try below solution,

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    user = coreDataHandler.getSortedData()

    return user!.count
}

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

    let currentUser  = user[indexPath.row]

    cell?.textLabel?.text = String(describing: currentUser.username)

    return cell!
}

Note: This is just a pseudo might contain error

Answer 2

You are doing wrong

Do like this

let user: [UserType] = []

override func viewDidLoad() {
    super.viewDidLoad()
    user = coreDataHandler.getSortedData()
}

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

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell")
    let currentUser = user[indexPath.row]
    cell?.textLabel?.text = "\(currentUser.username)"
    return cell!
}

You don't need iterate again in cellForRowAt delegate as it is self iterated delgate.

For safe coding use guard let or if let for unwrapping values. Force unwrap leads to app crash in any instance of time.