本文介绍了WCSession.sendMessage工作50/50的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

最近,我正在开发一个与Watch/ iPhone通信相关的项目。但是我的代码有时工作并且有时不起作用,这对我来说有点奇怪,因为我认为代码应该工作与否。它不能是50/50。因此,我不知道出了什么问题。

Lately, I am working on a project is related to Watch/iPhone communication again. But my code works sometimes and doesn’t work sometimes which is kind of weird to me because I think the code should either work or not. It cannot be 50/50. Therefore, I have no idea what goes wrong.

在iPhone上设置WCSession:

class WatchCommunicationController: NSObject, WCSessionDelegate {

    var session : WCSession?

    override init(){

        //  super class init
        super.init()

        //  if WCSession is supported
        if WCSession.isSupported() {    //  it is supported

            //  get default session
            session = WCSession.defaultSession()

            //  set delegate
            session!.delegate = self

            //  activate session
            session!.activateSession()

        } else {

            print("iPhone does not support WCSession")
        }
    }

    ... ...
}

Watch上的类似WCSession设置:

class PhoneCommunicationController: NSObject, WCSessionDelegate {

    var session : WCSession?

    override init(){

        //  super class init
        super.init()

        //  if WCSession is supported
        if WCSession.isSupported() {    //  it is supported

            //  get default session
            session = WCSession.defaultSession()

            //  set delegate
            session!.delegate = self

            //  activate session
            session!.activateSession()
        } else {

            print("Watch does not support WCSession")
        }
    }

    ... ...
}

发送消息观察:

func sendGesture(手势) :GKGesture){

func sendGesture(gesture : GKGesture){

//  if WCSession is reachable
if session!.reachable {     //  it is reachable

    //  create the interactive message with gesture
    let message : [String : AnyObject]
    message = [
                "Type":"Gesture",
                "Content":gesture.rawValue
              ]

    //  send message
    session!.sendMessage(message, replyHandler: nil, errorHandler: nil)
    print("Watch send gesture \(gesture)")

} else{                     //  it is not reachable

    print("WCSession is not reachable")
}

}

相关枚举:

enum GKGesture: Int {
    case Push = 0, Left, Right, Up, Down
}

在iPhone上接收消息:

func session(session: WCSession, didReceiveMessage message: [String : AnyObject]) {

        //retrieve info
        let type = message["Type"] as! String
        let content = message["Content"]

        switch type {

        case "Gesture":
            handleGesture(GKGesture(rawValue: content as! Int)!)
        default:
            print("Received message \(message) is invalid with type of \(type)")
        }

    }

    func handleGesture(gesture : GKGesture){

        print("iPhone receives gesture \(gesture)")

        var notificationName = ""

        switch gesture {

        case .Up:
            notificationName = "GestureUp"
        case .Down:
            notificationName = "GestureDown"
        case .Left:
            notificationName = "GestureLeft"
        case .Right:
            notificationName = "GestureRight"
        case .Push:
            notificationName = "GesturePush"
        }

        NSNotificationCenter.defaultCenter().postNotificationName(notificationName, object: nil)

    }

以某种方式我可以'在Xcode上调试我的Watch应用程序,调试会话就不会附加。我不知道为什么。因此,我只用iPhone进行单面调试。

somehow I can’t debug my Watch app on Xcode, the debug session just won’t attach. I don’t know why. Therefore, I debug one-sided with just the iPhone.

有时我会打印出接收手势,有时也不会。并且获取通知也是如此。

sometimes I got "receives gesture" print out, and sometimes not. And the same for getting the notification.

推荐答案

我不知道在WCSession中传输时是否会将Int包裹到NSNumber。如果是,那么必须是为什么当我使用Int作为枚举的基类时,它将无法工作,并且当String是基类时可以工作。

I don't know if Int would be wrapped around to NSNumber while being transfer within WCSession. If it would be, then that must be why when I use Int as the base class of the enum it won't work and works when String is the base class.

解决方法:在$之前将NSNumber或NSDate对象转换为字符串b $ b调用WCSession API。在接收
方面进行相反的转换。

Workaround: Convert an NSNumber or NSDate object to a string before calling WCSession APIs. Do the opposite conversion on the receiving side.

观看OS 2 Beta 4发行说明

这篇关于WCSession.sendMessage工作50/50的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

07-16 18:47
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