NSTimer scheduledTimerWithTimeInterval和target是“类级别函数”

Question

如何在Swift中设置 target （调用类级别函数），方法是在obj-c中完成：

call a class level method in scheduledTimerWithTimeInterval

Answer 1

class MyClass: NSObject{

  class func startTimer(){
    NSTimer.scheduledTimerWithTimeInterval(2.0, target: MyClass.self, selector: "callByTimer:", userInfo: nil, repeats: true)

  }

  class func callByTimer(timer: NSTimer!){
    println("Called")
  }

}

MyClass.startTimer()