これで
import UIKit
class ViewController: UIViewController {
var cnt : Int = 0
var timer : NSTimer!
var myInt:Int = 0
override func viewDidLoad() {
let myDate: NSDate = NSDate()
let myCalendar: NSCalendar = NSCalendar(calendarIdentifier: NSCalendarIdentifierGregorian)!
let myComponetns = myCalendar.components(NSCalendarUnit.CalendarUnitYear |
NSCalendarUnit.CalendarUnitHour |
NSCalendarUnit.CalendarUnitMinute |
NSCalendarUnit.CalendarUnitSecond ,
fromDate: myDate)
timer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: "onUpdate:", userInfo: nil, repeats: true)
timer.fire()
var myStr: String = "\(myComponetns.hour)"
myStr += "\(myComponetns.minute)"
myStr += "\(myComponetns.second)"
myInt = myStr.toInt()!
}
func onUpdate(timer : NSTimer){
cnt += 1
let count = myInt - cnt
println(count)
}
}