Custom view cell always has properties set to nil (UITableView) - ios

Question

Table view cell in cellForRowAt alway has all properties set to nil
import UIKit
class TodoTableViewCell: UITableViewCell {
#IBOutlet weak var label: UILabel!
}
class TodosViewController: UITableViewController {
#IBOutlet var TodosTableView: UITableView!
var projects = [Project]()
var todos = [Todo]()
override func viewDidLoad() {
super.viewDidLoad()
TodosTableView.delegate = self
self.tableView.register(TodoTableViewCell.self, forCellReuseIdentifier: "TodoTableViewCell1")
// data init
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier = "TodoTableViewCell1"
var todo = projects[indexPath.section].todos[indexPath.row]
guard let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath) as? TodoTableViewCell else {
fatalError("The dequeued cell is not an instance of MealTableViewCell.")
}
cell.label?.text = todo.text // cell.label is always nil
return cell
}
}
It seems like identical issue
Custom table view cell: IBOutlet label is nil
What I tried to do:
- restart Xcode
- recreate outlet
- clean project
- recreate view cell from scratch like here https://www.ralfebert.de/ios-examples/uikit/uitableviewcontroller/custom-cells/
Please help, iOS development drives me nuts already.

Answer 1

You don't need to register the class in the tableview if you're using prototype cells in Interface Builder. Try removing the registration function from viewDidLoad. Incidentally you can also set dataSource and delegate in IB - much neater code-wise.

Answer 2

You are using the UITableView instance method:
func register(AnyClass?, forCellReuseIdentifier: String)
This only works if your custom UITableViewCell subclass is not setup using Interface Builder
If you've created your subclass using an xib. You should use:
func register(UINib?, forCellReuseIdentifier: String)
like:
let nib = UINib(nibName: "\(TodoTableViewCell.self)", bundle: nil)
self.tableView.register(nib, forCellReuseIdentifier: "TodoTableViewCell1")
If you're using prototype cells in a storyboard you don't need to register your cells at all.

Answer 3

I think the identifier of the cell should be in the identifier from the attributes inspector column not the Identity inspector
and in module in Identity inspector add your project

Answer 4

Important note: One issue I haven't seen discussed is that if you use prototype cells in the storyboard, then explicitly registering the cell will make your outlets nil! If you explicitly register the cell then you are registering it without the storyboard which has your iboutlets. This will mean you defined your outlets in your cell but they aren't connected. Deleting the explicit registration will solve the issue.
Doesn't work:
tableVIew.register(MenuCell.self, forCellReuseIdentifier: "MenuCell")
Works:
// tableVIew.register(MenuCell.self, forCellReuseIdentifier: "MenuCell")