NSTimer scheduledTimerWithTimeInterval和target是"类级别函数"

Question

如何在obj-c中完成它在Swift中设置目标(调用类级函数):

在scheduledTimerWithTimeInterval中调用类级方法

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()