我正在创建一个计时器应用程序,我希望计时器在24小时内重置自己。我现在也可以在几秒钟内完成计时器,并希望它在达到该时间段后更改为分钟和小时。我有一个开始按钮,不想添加停止按钮或重置按钮。这是我到目前为止的快速代码。
var timerCount = 0
var timerRunning = false
var timer = NSTimer()
@IBOutlet weak var timerLabel: UILabel!
func Counting(){
timerCount += 1
timerLabel.text = "\(timerCount)"
}
//Start button
@IBAction func startButton(sender: UIButton) {
// If timer is not already running then start timer
if timerRunning == false{
timer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: Selector("Counting"), userInfo: nil, repeats: true)
timerRunning = true
}