ios - 在自定义单元格中实现倒计时器

Question

我是 Xcode 和 swift 的新手，现在我正在尝试创建 iOS 应用程序，该应用程序允许用户创建多个自定义倒计时器。我将 UITableViewController 与 UITableViewCell 和 UIViewController 一起使用来添加新的计时器。但我不知道如何共同实现它们。以及如何在自定义单元计时器设置中实现。

我的 UITableViewController 单元格:

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "timer", for: indexPath) as! TimerTableViewCell
    cell.timerLabel.text = timersNames[indexPath.row]
    let sec = timersSeconds[indexPath.row]
    cell.timerTime.text = formattedTime(time: TimeInterval(sec))
    print(sec)
    return cell
}

我的自定义单元格 UITableViewCell 具有计时器功能:

class TimerTableViewCell: UITableViewCell {

var delegate: TimerCellDelegate?


@IBOutlet var timerLabel: UILabel!
@IBOutlet var timerTime: UILabel!
@IBOutlet var playButton: UIButton!
@IBOutlet var pauseButton: UIButton!
@IBOutlet var resetButton: UIButton!

var seconds = 10
var timer = Timer()
var hasTimerStarted = false
var isResumed = false



func runTimer() {
    timer = Timer.scheduledTimer(timeInterval: 1, target: self,
    selector: (#selector(TimerTableViewCell.updateTimer)), userInfo: nil, repeats: true)
        }

@objc func updateTimer() {
    if seconds < 1 {
        timer.invalidate()
        //Send alert to indicate "time's up!"
    } else {
        seconds -= 1
        timerLabel.text = formattedTime(time: TimeInterval(seconds))
    }
}


func formattedTime(time:TimeInterval) -> String {
    let hours = Int(time) / 3600
    let minutes = Int(time) / 60 % 60
    let seconds = Int(time) % 60
    return String(format:"%02i:%02i:%02i", hours, minutes, seconds)
}




@IBAction func timerStart(_ sender: UIButton) {
    delegate?.didTapTimerStart(sender.tag)
    if hasTimerStarted == false {
    runTimer()
        self.playButton.isEnabled = false
    }

}

@IBAction func timerPause(_ sender: UIButton) {
    delegate?.didTapTimerPause(sender.tag)
    if self.isResumed == false {
        timer.invalidate()
        hasTimerStarted = false
        self.isResumed = true
        self.pauseButton.setTitle("Resume",for: .normal)
    } else {
        runTimer()
        self.isResumed = false
        hasTimerStarted = true
        self.pauseButton.setTitle("Pause",for: .normal)
    }


}

@IBAction func timerReset(_ sender: UIButton) {
    delegate?.didTapTimerReset(sender.tag)
    timer.invalidate()
    seconds = 10
    timerLabel.text = formattedTime(time: TimeInterval(seconds))
    hasTimerStarted = false
    isResumed = false
    self.pauseButton.setTitle("Pause",for: .normal)
    pauseButton.isEnabled = false
    self.playButton.isEnabled = true
   }
}

How I can put the code from custom cell to UITableViewController cell config and make them work together?

谢谢。

Answer 1

This教程应该可以帮助您使用 tableView 中的自定义单元格。希望对您有帮助!