👀 Views: 397 💬 Answers: 1 📅 Created: 2025-06-11

ios uikit uitableview Swift

I'm stuck trying to I tried several approaches but none seem to work... I am working with an scenario where a `UISwitch` within a custom `UITableViewCell` becomes unresponsive when the cell is created using Auto Layout. The switch is supposed to toggle on and off, but it doesn't register any user interactions. This question appears only when the cell is reused, and I consistently receive the behavior message `Warning: Attempt to present <UIViewController> on <UITableViewCell> whose view is not in the window hierarchy`. Here's the code I am using to set up the cell: ```swift class MyCustomCell: UITableViewCell { let mySwitch: UISwitch = { let switchControl = UISwitch() switchControl.translatesAutoresizingMaskIntoConstraints = false return switchControl }() override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) { super.init(style: style, reuseIdentifier: reuseIdentifier) contentView.addSubview(mySwitch) NSLayoutConstraint.activate([ mySwitch.centerYAnchor.constraint(equalTo: contentView.centerYAnchor), mySwitch.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -20) ]) } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } } class MyViewController: UIViewController, UITableViewDataSource { let tableView = UITableView() override func viewDidLoad() { super.viewDidLoad() tableView.register(MyCustomCell.self, forCellReuseIdentifier: "cellId") tableView.dataSource = self view.addSubview(tableView) tableView.frame = view.bounds } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return 10 } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCell(withIdentifier: "cellId", for: indexPath) as! MyCustomCell return cell } } ``` I've tried enabling user interaction on the `UISwitch` and making sure the cell is fully in the view hierarchy. Also, I ensured that the cell's reuse identifier is correctly registered. However, the switch still isn't responding as expected. Any guidance on what could be causing this scenario or how to make the `UISwitch` responsive would be greatly appreciated! For context: I'm using Swift on Linux. Is there a better approach? My development environment is Windows 10. Thanks for any help you can provide!