Question

当我尝试发送内容时，我得到WCSession尚未激活错误。而且我不知道自己做错了什么。我已经测试了serval预制解决方案＆＃34; must＆＃34;工作。但它不能在我的模拟器和物理设备上工作。

一些代码：

我的应用代表：

import UIKit
import CoreData
import WatchConnectivity


@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, WCSessionDelegate {

    var window: UIWindow?


    func session(session: WCSession, didReceiveMessage message: [String : AnyObject], replyHandler: ([String : String]) -> Void) {
        replyHandler(["message": "Hello Watch!"])
    }

    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
    }

    func sessionDidBecomeInactive(_ session: WCSession) {

    }

    func sessionDidDeactivate(_ session: WCSession) {

    }

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.

        if WCSession.isSupported() {
            let session = WCSession.default()
            session.delegate = self
            session.activate()
        }

        return true
    }

........


}

我的interfaceController：

import WatchKit
import Foundation
import WatchConnectivity


class InterfaceController: WKInterfaceController {


    override func awake(withContext context: Any?) {
        super.awake(withContext: context)

        // Configure interface objects here.
    }

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

        if WCSession.default().isReachable {
            let messageDict = ["message": "hello iPhone!"]

            WCSession.default().sendMessage(messageDict, replyHandler: { (replyDict) -> Void in
                //print(replyDict)
            }, errorHandler: { (error) -> Void in
               // print(error)
            })
        }

    }

    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
    }

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

    }

    override func didDeactivate() {
        // This method is called when watch view controller is no longer visible
        super.didDeactivate()
    }
}

extensionDelegate：

   import WatchKit
    import WatchConnectivity

        class ExtensionDelegate: NSObject, WKExtensionDelegate, WCSessionDelegate {

        func applicationDidFinishLaunching() {
            // Perform any final initialization of your application.
            if WCSession.isSupported() {
                let session = WCSession.default()
                session.delegate = self
                session.activate()
            }
        }

        func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        }

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

            }
    ....

是否有任何错误的代码或实现？因为没有什么对我有用。

Answer 1

我发现了我遇到的问题，我觉得你的问题很相似。我在调用activate()之后立即尝试发送消息，这在过去有效，但自从引入session(activationDidCompleteWith:)函数后，我需要从那里发送消息。

所以我认为您的解决方案就是其中之一：

让您的InterfaceController成为WCSessionDelegate，全部移动 WCSession激活那里，并发送消息 session(activationDidCompleteWith:)
发送消息 session(activationDidCompleteWith:)中的ExtensionDelegate（在我的身上） app我处理ExtensionDelegate）
从session(activationDidCompleteWith:)发布通知 ExtensionDelegate并添加一个观察者来处理它 InterfaceController

除此之外，我认为您可能也有问题，因为您的AppDelegate中session(didReceiveMessage:)的声明是错误的（或者至少我在尝试您的代码时遇到了问题。）

新声明是：

func session(_ session: WCSession, didReceiveMessage message: [String : Any], replyHandler: @escaping ([String : Any]) -> Void)

Answer 2

要检查您的代码是否看起来不错并且WCsession仍然无法激活，请重新启动手表。这就是我的答案。

WCSession尚未激活

2 个答案: