问将选择器从UITableViewCell类添加到UITableViewController类

EN

//Declare a delegate for the cell
protocol PlayerSelectionCellDelegate : class {
    func playerSelectionCell(_ cell:PlayerSelectionCell, didChangeValue:Double)
    func playerSelectionCell(_ cell:PlayerSelectionCell, expansionSelectionValueDidChange:Bool)
}

class PlayerSelectionCell: UITableViewCell {

    weak var delegate : PlayerSelectionCellDelegate?        //Set a weak var to allocate the delegate

    @objc func stepperValueDidChange(_ sender: UIStepper) {
        delegate?.playerSelectionCell(self, didChangeValue: sender.value)
    }

    @objc func expansionSelectionValueDidChange(_ sender: UISwitch) {
        delegate?.playerSelectionCell(self, expansionSelectionValueDidChange: sender.isOn)
    }

    override func awakeFromNib() {
        let stepper = UIStepper()
        stepper.addTarget(self, action: #selector(stepperValueDidChange), for: .valueChanged)

        //This line should be reference to the UISwitch Action
        selectionSwitch.addTarget(self, action: #selector(expansionSelectionValueDidChange), for: .valueChanged)
        self.accessoryView = stepper
    }
}

class SetupViewController: UITableViewController {

    @IBOutlet var setupTableView: UITableView!

    override func numberOfSections(in tableView: UITableView) -> Int {
        return 2
    }

    override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        switch section {
        case 0:
            return "Expansions"
        case 1:
            return "Players"
        default:
            return nil
        }
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        switch section {
        case 0:
            return Expansions.allCases.count
        case 1:
            return 3
        default:
            return 0
        }
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        if indexPath.section == 0 {
            let cell = tableView.dequeueReusableCell(withIdentifier: "Expansion Selection", for: indexPath) as? ExpansionCell ?? ExpansionCell()
            cell.textLabel?.text = Expansions.allCases[indexPath.row].rawValue
            return cell
        } else if indexPath.section == 1 && indexPath.row == 0 {
            let cell = tableView.dequeueReusableCell(withIdentifier: "Player Selection", for: indexPath) as? PlayerSelectionCell ?? PlayerSelectionCell()
            cell.delegate = self            //Set the ViewController to be delegated by cell
            return cell
        } else {
            let cell = tableView.dequeueReusableCell(withIdentifier: "Player Detail", for: indexPath) as? PlayerCell ?? PlayerCell()
            cell.textLabel?.text = "Player \(indexPath.row)"
            return cell
        }
    }

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

    //Remove the actions and implements the delegate methods
    func playerSelectionCell(_ cell: PlayerSelectionCell, didChangeValue players: Double) {
        print("Value Players: \(players)")
    }

    func playerSelectionCell(_ cell: PlayerSelectionCell, expansionSelectionValueDidChange selected: Bool) {
        print("Value Selected: \(selected)")
    }

}