Not working delegate UITableViewController - ios

Question

I created UITableViewController programmatically but methods for deleting rows editingStyle and didSelectRowAt not working. I cannot figure out why they don't work. I checked everything and tried by anywahy delegate methods not work.
My code:
import UIKit
class FPTasksViewController: UITableViewController, FPPopUpViewControllerDelegate {
let date = String(DateFormatter.localizedString(from: NSDate() as Date, dateStyle: .long, timeStyle: .none))
private var tasks: [FPTask] = FPDefaults.sh.tasks {
didSet {
FPDefaults.sh.tasks = self.tasks
}
}
// MARK: - life cycle functions
override func viewDidLoad() {
super.viewDidLoad()
self.tableView.separatorStyle = .none
let tapGestureRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(didTapTableView))
tableView.addGestureRecognizer(tapGestureRecognizer)
}
// MARK: - actions
func FPPopUpViewControllerOkButtonTapped(_ controller: FPPopUpViewController, didFinishAdding newTask: FPTask) {
let newRowIndex = tasks.count
self.tasks.append(newTask)
let indexPath = IndexPath(row: newRowIndex, section: 0)
tableView.insertRows(at: [indexPath], with: .automatic)
navigationController?.popViewController(animated: true)
}
#objc func addButtonTapped() {
let popUp = FPPopUpViewController()
popUp.delegate = self
self.view.addSubview(popUp)
self.view.backgroundColor = UIColor.systemGray3.withAlphaComponent(0.8)
}
#objc func didTapTableView(_ gestureRecognizer: UILongPressGestureRecognizer) {
self.tableView.backgroundColor = .black
}
// MARK: - table view
override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
switch editingStyle {
case .delete:
self.tasks.remove(at: indexPath.row)
tableView.deleteRows(at: [indexPath], with: .fade)
default:
break
}
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.tasks.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: FPTasksCell.reuseIdentifier,
for: indexPath) as? FPTasksCell ?? FPTasksCell()
let task = tasks[indexPath.row]
cell.setCellData(taskName: " \(task.taskTitle)", taskDescription: " from \(date.lowercased())")
return cell
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print(1)
}
}
Why I cannot delete rows? And how to make didSelectRowAt method works also? What I did wrong?

Answer 1

set tableView datasource and delegate in viewDidLoad method.
self.tableView.delegate = self
self.tableView.dataSource = self

Answer 2

class FPTasksViewController: UITableViewController, FPPopUpViewControllerDelegate, UITableViewDataSource, UITableViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.tableView.delegate = self
self.tableView.dataSource = self
}
}