Make countdown clock Swift

We want to make a countdown clock to show time remain to user when they playing game.

Declare a time value to a variable.

var count=100

Create a function like this

func update(){

        count = count - 1

        var minute=count/60

        minute=Int(minute)

        let second=count%60

        if(count<61){

         label.text=String(count)+" Seconds"

        }

        else{

       label.text=String(minute)+" Minute "+String(second)+" Seconds"

        }

    if count==0{

       let vc = second()

        self.presentViewController(vc, animated: true, completion: nil)

    }

    }

We divide seconds to 60 to find minute number, if seconds smaller tan 61, show only seconds remain. When time out, we open new screen.

Copy in to viewDidLoad.

let time=NSTimer.scheduledTimerWithTimeInterval(1.0, target:self,  selector: "update",userInfo: nil, repeats: true)

Run to see result.