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#ios #swift #timer #counter #count #countdown

var secondsRemaining = 60    
Timer.scheduledTimer(withTimeInterval: 1.0, repeats: true) { (Timer) in
        if secondsRemaining > 0 {
            print ("\(self.secondsRemaining) seconds")
            secondsRemaining -= 1
        } else {
            Timer.invalidate()
        }
    }

CountDown Timer

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