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WatchKit_Extension.InterfaceController没有实现委托方法

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我正在尝试使用一个简单的应用程序学习watchkit连接，并花了两天徒劳地研究这个错误：

_WatchKit_Extension.InterfaceController没有实现委托方法 .

我已经盲目地复制了"SimpleWatchConnectivity" https://developer.apple.com/library/content/samplecode/SimpleWatchConnectivity/Listings/SimpleWatchConnectivity_WatchKit_Extension_InterfaceController_swift.html演示代码中的代码 . 并且在没有成功的情况下搜索了论坛 .

我的代码构建并运行正常，但我在 Watch 上收到以下错误

2018-01-06 10：39：20.522995 1100 messageDemo WatchKit Extension [338：743006] [WC] - [WCSession onqueue_handleDictionaryMessageRequest：withPairingID：] _ block_invoke委托messageDemo_WatchKit_Extension.InterfaceController不实现委托方法2018-01-06 10:39： 20.524378 1100 messageDemo WatchKit扩展[338：743006] [WC] - [WCSession _onqueue_sendResponseError：identifier：dictionaryMessage：]标识符：A150D814-453C-44B7-B970-913697526D6A，带有WCErrorCodeDeliveryFailed

当我执行时：

if (WCSession.isSupported())  
    {  
        WCSession.default.delegate = self;  
        WCSession.default.activate()  

        if let messageText =  textField.text{  
             WCSession.default.sendMessage(["message": messageText]  
                ,replyHandler: {replyMessage in  
                    print(replyMessage)  
             }  

               , errorHandler: {error in  
                print( error.localizedDescription)}  )  
        }  
    }

来自iOS ViewController .

我的界面控制器如下：

import WatchKit

进口基金会
导入WatchConnectivity
class InterfaceController：WKInterfaceController
，WCSessionDelegate
{
func session（_ session：WCSession
，activationDidCompleteWith activationState：WCSessionActivationState
，错误：错误？）{
打印（"activationDidCompleteWith:(activationState )"）/
}
func sessionReachabilityDidChange（_ session：WCSession）{
/
/
打印（"sessionReachabilityDidChange"）
}

@IBOutlet var messageLabel: WKInterfaceLabel!  
override func awake(withContext context: Any?) {  
    super.awake(withContext: context)  

    /  
}  

override func willActivate() {  
    /  
    super.willActivate()  
    if (WCSession.isSupported())  
    {  
        WCSession.default.delegate = self;  
        WCSession.default.activate()  

    }  

}  

override func didDeactivate() {  

    super.didDeactivate()  

}  

private func session(session: WCSession, didReceiveMessage message: [String : Any]  
    , replyHandler: @escaping ([String : Any]) -> Void) {  
    self.messageLabel.setText(message["message"]! as? String)  
}  
   func session(_ session: WCSession, didReceiveMessage message: [String : Any]) {  
    self.messageLabel.setText(message["message"]! as? String)  
}  
func session(_ session: WCSession, didReceiveMessageData messageData: Data) {  
    print("HERE01")  
}  

func session(_ session: WCSession, didReceiveMessageData messageData: Data, replyHandler: @escaping (Data) -> Void) {  
    self.session(session, didReceiveMessageData: messageData)  

     print("HERE02")  
}  
func session(_ session: WCSession, didReceiveApplicationContext applicationContext: [String : Any]) {  

     print("HERE03")  
}  

func session(_ session: WCSession, didReceiveUserInfo userInfo: [String : Any] = [:]) {  
     print("HERE04")  

}  
func session(_ session: WCSession, didFinish userInfoTransfer: WCSessionUserInfoTransfer, error: Error?) {  
    print("HERE05")  
}  

func session(_ session: WCSession, didReceive file: WCSessionFile) {  
    print("HERE06")  
    }  

func session(_ session: WCSession, didFinish fileTransfer: WCSessionFileTransfer, error: Error?) {  
    print("HERE07")  
}

}
（抱歉格式化，我尝试了10分钟才能把它弄好，但遗憾地失败了）

我添加了一堆打印件以确保涵盖所有案例 .

完整的错误是：

2018-01-06 10：39：20.522995 1100 messageDemo WatchKit Extension [338：743006] [WC] - [WCSession onqueue_handleDictionaryMessageRequest：withPairingID：] _ block_invoke委托messageDemo_WatchKit_Extension.InterfaceController不实现委托方法2018-01-06 10:39： 20.524378 1100 messageDemo WatchKit扩展[338：743006] [WC] - [WCSession _onqueue_sendResponseError：identifier：dictionaryMessage：]标识符：A150D814-453C-44B7-B970-913697526D6A，带有WCErrorCodeDeliveryFailed

任何帮助将不胜感激

[编辑]当我使用调试器监视电话应用程序时，我看到发送消息失败：

2018-01-07 09：47：23.319221 1100 messageDemo [6628：1549809] [WC] - [WCSession _onqueue_notifyOfMessageError：messageID：withErrorHandler：]（null）errorHandler：YES with WCErrorCodeSessionNotActivated 2018-01-07 09：47：23.321103 1100 messageDemo [6628：1549978] [WC] - [WCSession _onqueue_notifyOfMessageError：messageID：withErrorHandler：] _ block_invoke drop for pairingIDs不再匹配 . pairingID（null），client pairingID :( null）尚未激活WatchConnectivity会话 .

当我尝试发送 second message 时，会生成从帖子顶部引用的watchKitExtension收到的错误 . first message 中watchKitExtension没有错误 .

swift watchkit apple-watch watchconnectivity

2 回答

  • 1

    以下解决方案适用于通过 WCSession 在iPhone和iWatch之间共享数据，

    ViewController.swift

    import UIKit
import WatchConnectivity

class ViewController: UIViewController, WCSessionDelegate {

    @IBOutlet weak var textFieldMessage : UITextField!
    @IBOutlet weak var buttonSend : UIButton!
    var wcSession : WCSession!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        wcSession = WCSession.default
        wcSession.delegate = self
        wcSession.activate()
    }

    //MARK: - Button Actions

    @IBAction func clickSendMessage(_ sender : UIButton) {

        let message = ["message" : textFieldMessage.text!]
        do {
            try wcSession.updateApplicationContext(message)
        } catch {
            print("Something went wrong")
        }
    }

    // MARK: - WCSessionDelegate

    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        NSLog("%@", "activationDidCompleteWith activationState:\(activationState) error:\(String(describing: error))")
    }

    func sessionDidBecomeInactive(_ session: WCSession) {
        print("%@", "sessionDidBecomeInactive: \(session)")
    }

    func sessionDidDeactivate(_ session: WCSession) {
        print("%@", "sessionDidDeactivate: \(session)")
    }

    func sessionWatchStateDidChange(_ session: WCSession) {
        print("%@", "sessionWatchStateDidChange: \(session)")
    }
}

    enter image description here

    InterfaceController.swift （观看延期）

    import WatchKit
import Foundation
import WatchConnectivity

class InterfaceController: WKInterfaceController, WCSessionDelegate {

    var session : WCSession?
    @IBOutlet weak var sessionLabel : WKInterfaceLabel!

    override func willActivate() {
        // This method is called when watch view controller is about to be visible to user
        super.willActivate()

        session = WCSession.default
        session?.delegate = self
        session?.activate()
    }

    // MARK: - WCSessionDelegate

    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        NSLog("%@", "activationDidCompleteWith activationState:\(activationState) error:\(String(describing: error))")
    }

    func session(_ session: WCSession, didReceiveApplicationContext applicationContext: [String : Any]) {
        NSLog("didReceiveApplicationContext : %@", applicationContext)
        sessionLabel.setText(applicationContext["message"] as? String)
    }

    enter image description here

    OutPut will be as below,

    enter image description here

    回复于
  • 5

    我的问题是sendMessage实现了replyHandler：{replyMessage in
    打印（replyMessage）
    我收到邮件时没有回复 . 我从来没有真正弄清楚如何发送回复，最后放弃了sendMessage，转而使用更准确地满足我要求的updateApplicationContext .

    回复于

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