ios - 更改tableView中不同行的值

Question

如何更改不同选定行的值？我想选择行并更改值，而对于其他未选择的行，我不想更改值。

这是所选行的示例。我或我的用户可以选择其他字符串进行更改，我需要一个通用代码。请帮忙。

我的tableView看起来像这样:

我的代码不起作用，但看起来像这样:

@IBOutlet weak var tableView: UITableView!

var weekdayTime: [String] = ["00:00", "01:00", "02:00", "03:00", "04:00", "05:00", "06:00"]

var weekdayPrice: [Int] = [1000, 2000, 3000, 4000, 5000, 6000, 7000]

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    return weekdayTime.count

}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "weekdayCell", for: indexPath) as! WeekdayPriceCell

    cell.timeLabel.text = weekdayTime[indexPath.row]

    cell.priceLabel.text = "\(weekdayPrice[indexPath.row])"

    return cell

}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    tableView.deselectRow(at: indexPath, animated: true)

    let cell = tableView.cellForRow(at: indexPath)

    if (arrayOfSelectedIndexPath.contains(indexPath)) {

        cell?.accessoryType = .none

    } else {

        cell?.accessoryType = .checkmark

    }
}

@IBAction func changePrice(_ sender: Any) {

    let alertController = UIAlertController(title: "Set price on selected time, message: nil, preferredStyle: .alert)

    alertController.addTextField { (textField: UITextField) in

        textField.keyboardType = .numberPad

        textField.placeholder = "Set price"

    }

    alertController.addAction(UIAlertAction(title: "Cancal", style: .cancel, handler: nil))

    alertController.addAction(UIAlertAction(title: "Change", style: .default, handler: { (action) in

        if let price = alertController.textFields?.first?.text {
            // it's not work code, i think on this need to create new code
            self.weekdayPrice = [Int(price)!]

            print(self.weekdayPrice)
            self.tableView.reloadData()

        }
    }))

    self.present(alertController, animated: true, completion: nil)

}

@IBAction func saveButtonPressed(_ sender: Any) {

}

我认为我的问题在这里 self.weekdayPrice = [Int(price)!] 及以下，但我不知道在哪里可以解决我的问题。

Answer 1

1. 在 weekdayPrice 之后添加以下行
   var weekdaySelectedFlags = Array(repeating: false, count: 7)

2. 在 tableView.deselectRow(at: indexPath, animated: true) 之后添加以下行在 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)方法

   weekdaySelectedFlags[indexPath.row] = !weekdaySelectedFlags[indexPath.row]
   

3. 替换以下行 self.weekdayPrice = [Int(price)!]

           if let priceValue = Int(price) {
               self.weekdaySelectedFlags.enumerated().forEach() {
                   if $1 == true {
                       self.weekdayPrice[$0] = priceValue
                   }
               }
           } else {
               print("Failed to convert the input text to Int value")
           }
   

   或

           if let priceValue = Int(price) {
               for (key ,flag) in self.weekdaySelectedFlags.enumerated() {
                   if flag == true {
                       self.weekdayPrice[key] = priceValue
                   }
               }
           } else {
               print("Failed to convert the input text to Int value")
           }
   

   那么你的“更改”操作将如下所示

       alertController.addAction(UIAlertAction(title: "Change", style: .default, handler: { (action) in
   
           if let price = alertController.textFields?.first?.text {
               // it's not work code, i think on this need to create new code
               if let priceValue = Int(price) {
                   self.weekdaySelectedFlags.enumerated().forEach() {
                       if $1 == true {
                           self.weekdayPrice[$0] = priceValue
                       }
                   }
               } else {
                   print("Failed to convert the input text to Int value")
               }
   
   
               print(self.weekdayPrice)
               self.tableView.reloadData()
   
           }
       }))