CODEWITHSUNDEEP
swifttimerswift3nstimer
Hben
Hben

Reputation: 21

Run timer in a specific time (swift)

I have an app that takes the time and time interval from a user and starts to count down at that time. when I try to start the timer at the time that I have, it freaks out and not working.

this is the func that runs the timer:

 func runTimer(){

    let timer = Timer(fireAt: firstMealTime, interval: 1, target: self, selector: #selector(updateTimer), userInfo: nil, repeats: true)
    RunLoop.main.add(timer, forMode: .commonModes)
}

and this is the updateTimer func:

  if seconds < 1 {
        timerRepeat! -= 1
        updateMealLeftLabel(numberOfMeal: timerRepeat)
        resetTimer()
    }else{
        seconds -= 1
        updateTimerLabel()
    }

thanks in advance!

Upvotes: 2

Views: 2240

Answers (1)

kkakkurt
kkakkurt

Reputation: 2800

You can check your timer definition like this:

var seconds = YourCountdownValue // (in seconds) for example 100 seconds.

func runTimer(){
   firstMealTime = Date().addingTimeInterval(10.0) // This line is for testing. Countdown will be start in 10 seconds.
   let timer = Timer(fireAt: firstMealTime, interval: 1, target: self, selector: #selector(updateTimer), userInfo: nil, repeats: true)
   RunLoop.main.add(timer, forMode: .commonModes)
}

func updateTimer() {
    if seconds < 1 {
       timerRepeat! -= 1
       updateMealLeftLabel(numberOfMeal: timerRepeat)
       print("finished") //for testing
       resetTimer()
    }else{
       seconds -= 1
       print(seconds) //for testing
       updateTimerLabel()
   }
}

Upvotes: 1

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