“留言回复花了太长时间。” - 观察Watch OS 3的连接问题

时间:2016-09-15 16:02:37

标签: ios swift watch-os-3 watchconnectivity

在我的项目中,我使用Watch Connectivity向Watch和iPhone发送消息。我可以向手机发送消息并在启动应用程序时收到一串字符串,但是在使用操作时,我收到以下错误;

  

错误域= WCErrorDomain代码= 7012“消息回复花了太长时间。”

以下是设置方式;

首先,手表会向手机发送消息,然后手机会发送一串字符串以WKInterfaceTable显示。这有时适用于加载应用程序。 (我获取名为Items的所有NSManagedObjects并使用他们的title字符串属性存储在名为array的{​​{1}}中。

但是,我在手表上有一个操作,删除数组中的所有项目并使用新数据刷新表格。

手表上的操作使用watchItems功能将sendMessage发送到手机以从阵列中删除,然后手机将新更新的阵列发送到手表,手表会更新表格。但是,我要么返回相同的数组,要么出错。

非常简单,所以在Swift 3和Watch OS3 / iOS 10之前,一切都运行良好;整个应用程序曾经工作过。

以下是我如何设置所有内容;

手机应用代表

item

WATCH

import WatchConnectivity

class AppDelegate: UIResponder, UIApplicationDelegate, WCSessionDelegate {

var session : WCSession!

var items = [Items]()

func loadData() {
    let moc = (UIApplication.shared.delegate as! AppDelegate).managedObjectContext
    let request = NSFetchRequest<Items>(entityName: "Items")

    request.sortDescriptors = [NSSortDescriptor(key: "date", ascending: true)]
    request.predicate = NSPredicate(format: "remove == 0", "remove")

    do {
        try
            self.items = moc!.fetch(request)
        // success ...
    } catch {
        // failure
        print("Fetch failed")
    }
}

//WATCH EXTENSION FUNCTIONS
//IOS 9.3 
/** Called when the session has completed activation. If session state is WCSessionActivationStateNotActivated there will be an error with more details. */


//HAVE TO INCLUDE
@available(iOS 9.3, *)
func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?){
   print("iPhone WCSession activation did complete")
}


@available(iOS 9.3, *)
func sessionDidDeactivate(_ session: WCSession) {}

func sessionWatchStateDidChange(_ session: WCSession) {}

func sessionDidBecomeInactive(_ session: WCSession) {

}

//APP DELEGATE FUNCTIONS

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {

    //Check if session is supported and Activate
    if (WCSession.isSupported()) {
        session = WCSession.default()
        session.delegate = self;
        session.activate()
    }
    return true
}


}

//DID RECIEVE MESSAGE
func session(_ session: WCSession, didReceiveMessage message: [String : Any], replyHandler: @escaping ([String : Any]) -> Swift.Void) {


    loadData()

    func loadItems() {
        watchItems.removeAll()

        for a in self.items {
            watchItems.append(a.title)
        }
    }

    var watchItems = ["1","2","3","4","5"]

    let value = message["Value"] as? String

    //This is called when user loads app, and takes some time when using refresh action, sometimes times out 

    if value == "HELLOiPhone/+@=" {

        print("Hello Message Recieved")

        loadItems() 

        //send a reply
        replyHandler( [ "Items" : Items ] )

    }

    //Not sure if receiving but does not delete array and send back to watch
    if value == "removeALL@+=-/" {                        
        for index in self.items {
            index.remove = 1
            //Saves MOC
        }

        loadData()
        loadTasksData()

        //send a reply
        replyHandler( [ "Items" : Items ] )

    }
    else {
        for index in self.items {
            if index.title == value {
            index.remove = 1
            //Saves MOC
            }
        }

        loadData()
        loadTasksData()

        //send a reply
        replyHandler( [ "Items" : Items ] )
    }
}

2 个答案:

答案 0 :(得分:1)

  1. 您不应该从一个目标(iOS)向第二个目标(watchOS)发送或接收自定义类对象,而应该以字典格式发送/接收数据,例如[String:Any],此字典应包含数组您的自定义对象需要简单字典中键值对中的属性。这在手表方面很容易解码。

  2. 您应该创建一个扩展WCSessionDelegate的解耦类,如下所示,这样该类不仅可以在ExtensionDelegate中使用,还可以在任何WKInterfaceController中使用。

    class WatchSessionManager: NSObject, WCSessionDelegate {
    
        static let sharedManager = WatchSessionManager()
    
        private override init() {
            super.init()
            self.startSession()
        }
    
        private let session: WCSession = WCSession.default
    
        func startSession() {
            session.delegate = self
            session.activate()
        }
    
        func tryWatchSendMessage(message: [String: Any], completion: (([String: Any]) -> Void)? = nil) {
            print("tryWatch \(message)")
            weak var weakSelf = self
            if #available(iOS 9.3, *) {
                if weakSelf?.session.activationState == .activated {
                    if weakSelf?.session.isReachable == true {
                        weakSelf?.session.sendMessage(message,
                                                      replyHandler: { [weak self]  ( response )  in
                                                        guard let slf = self else {return}
                                                        //Get the objects from response dictionary
                                                        completion?(response)
                            },
                                                      errorHandler: { [weak self] ( error )  in
                                                        guard let slf = self else {return}
                                                        print ( "Error sending message: % @ " ,  error )
                                                        // If the message failed to send, queue it up for future transfer
                                                        slf.session.transferUserInfo(message)
                        })
                    } else {
                        self.session.transferUserInfo(message)
                    }
                }else{
                    self.session.activate()
                    self.session.transferUserInfo(message)
                }
            } else {
                // Fallback on earlier versions
                if self.session.activationState == .activated {
                    if self.session.isReachable == true {
                        self.session.sendMessage(message,
                                                 replyHandler: {  ( response )  in
                                                    //Get the objects from response dictionary
                                                    completion?(response)
                        },
                                                 errorHandler: {  ( error )  in
                                                    print ( "Error sending message: % @ " ,  error )
                                                    // If the message failed to send, queue it up for future transfer
                                                    self.session.transferUserInfo(message)
                        })
                    } else {
                        self.session.transferUserInfo(message)
                    }
                }else{
                    self.session.activate()
                    self.session.transferUserInfo(message)
                }
            }
        }
    
    
    }
    
  3. 现在,您可以轻松地向您的iOS应用程序发送消息,以便在任何WKInterfaceController中使用上述函数唤醒并从那里获取数据(例如来自CoreData),并且完成块将具有您所需的数据,例如

    let dict: [String: Any] = ["request": "FirstLoad"]
    WatchSessionManager.sharedManager.tryWatchSendMessage(message: dict,completion:{ (data) in print(data)})
    

    你应该在iOS端使用这个WatchSessionManager并接收请求,并根据请求的密钥,你应该从核心存储/ db中获取数据,并在didreceiveMessage函数的replyHandler中以简单的键值字典模式发送自定义对象列表如下。

     func session(_ session: WCSession, didReceiveMessage message: [String: Any], replyHandler: @escaping ([String: Any]) -> Void) {
     var dict: [String: Any] = [String: Any]()
     replyHandler(dict) //This dict will contain your resultant array to be sent to watchApp.
    }
    

    有些时候,iOS App App(Killed状态)无法访问WatchApp,为了解决这个问题,你应该调用&#34; tryWatchSendMessage&#34;定时器内约3秒间隔。当你从watchApp获得连接时,你应该使计时器无效。

    WatchConnectivity的sendMessage功能非常强大,可以唤醒您的应用。您应该以优化的方式使用它。

答案 1 :(得分:0)

我刚刚处理了我的WatchOS应用程序。当我收到“消息回复花了太长时间”时,有一种情况。

然后我将后台任务处理程序添加到我的iOS应用程序中,并开始每秒向WatchOS应用程序发送消息。消息包含UIApplication.shared.backgroundTimeRemaining。所以我得到:45秒,44秒,......,6秒,5秒......如果计时器运行时间低于5秒,则不会向iOS应用程序发送消息,我们将收到“消息回复耗时太长”。最简单的解决方案是每次定时器低于15秒时从手表发送空白消息。 backgroundTimeRemaining将再次更新为45秒:45,44,43,...,17,16,15,(空白留言),45,44,43,......

希望它有助于某人

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