多路连接传输文件，但是对等端不接收文件

Question

在我的下面的代码中，我试图将时间作为字符串发送到多个对等体，但是从不发送字符串或者我的函数永远不会在对等端运行。这是我的代码，没有错误

@IBAction func pick(sender: AnyObject) {



    self.presentPicker(sender)


    let now = NSDate()
    let nowData = NSKeyedArchiver.archivedDataWithRootObject(now)
    var error : NSError?
    self.session.sendData(nowData, toPeers: self.session.connectedPeers, withMode: MCSessionSendDataMode.Unreliable, error: &error)

    println("sending data")



   /* let formatter = NSDateFormatter()

    //formatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)  // you can set GMT time
    formatter.timeZone = NSTimeZone.localTimeZone() // or as local time
    formatter.dateFormat = "HH:mm:ss:SSS"



    formatter.dateFormat = "HHmmssSSS"
    */




    if error != nil {
        print(":( Were sorry there was an error :( please notify/email the developers (mecnewport@gmail.com) about this error: \(error?.localizedDescription)")
    }
    func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        var DestView: ViewController = segue.destinationViewController as! ViewController
        DestView.selectedSong = MPMediaItemCollection()


        }

        // self.updateChat(self.messageField.text, fromPeer: self.peerID)

        // self.startTime.text = ""




}

断裂

  func session(session: MCSession!, didReceiveData data: NSData!,
    fromPeer peerID: MCPeerID!)  {

        dispatch_async(dispatch_get_main_queue()) {

            var nowData = NSString(data: data, encoding: NSUTF8StringEncoding)


                // if time_value = startTime

                let formatter = NSDateFormatter()
                //formatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)  // you can set GMT time
                formatter.timeZone = NSTimeZone.localTimeZone() // or as local time
                formatter.dateFormat = "HH:mm:ss.SSS"
                var currentTime = formatter.stringFromDate(NSDate())
                println(currentTime)



                //"var Time.delegate"

                var startTime = (nowData as NSString?)!.integerValue + 100
                println(startTime)



                }




        }

}