ios - 如何从 Watch App(Watch OS 2)与不活动的 IOS 应用程序通信

Question

尝试将我的 Watch OS1 应用程序升级到 Watch OS 2。为 Watch OS 2 创建了新目标。并使用 sendMessage:replyHandler:errorHandler 从 IOS 应用程序发送/获取回复。如果只有 IOS 应用程序正在运行，它才能正常工作。如果 Watch 应用程序尝试在 iOS 应用程序处于非事件状态(Killed 状态)时进行通信，出现连接错误 7001。如何从 Watch App(Watch OS 2)通信非事件的 IOS 应用程序？

watch app 的 sendMessage:replyHandler:errorHandler 方法会在后台唤醒相应的 iOS 应用程序并使其可访问吗？

谢谢。

编辑1:-

iOS APP的App Delegate:

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions{

    if ([WCSession isSupported]) {
        WCSession *session = [WCSession defaultSession];
        session.delegate = self;
        [session activateSession];
    }
 return YES;
}
- (void)session:(nonnull WCSession *)session didReceiveMessage:(nonnull NSDictionary<NSString *,id> *)message replyHandler:(nonnull void (^)(NSDictionary<NSString *,id> * __nonnull))replyHandler {

        UIApplication *application = [UIApplication sharedApplication];
        __block UIBackgroundTaskIdentifier identifier = UIBackgroundTaskInvalid;
        dispatch_block_t endBlock = ^ {
            if (identifier != UIBackgroundTaskInvalid) {
                [application endBackgroundTask:identifier];
            }
            identifier = UIBackgroundTaskInvalid;
        };
        identifier = [application beginBackgroundTaskWithExpirationHandler:endBlock];

         if (replyHandler!=nil) {
            replyHandler(resultContainer); // my data dictionary from Iphone app to watch os as reply.
        }

        if (identifier!=UIBackgroundTaskInvalid) {
            [application endBackgroundTask:identifier];
            identifier = UIBackgroundTaskInvalid;
        }
}

观看应用:

- (void)applicationDidFinishLaunching {
    // Perform any final initialization of your application.
    if ([WCSession isSupported]) {
        WCSession *session = [WCSession defaultSession];
        session.delegate = self;
        [session activateSession];
    }
        NSDictionary *context = @{@"APP_LOADING":@"LOADING"};
        [WKInterfaceController reloadRootControllersWithNames:@[WATCH_INTERFACE_LOADING] contexts:@[context]];


        NSDictionary *request = //My Request data;
        [[WCSession defaultSession] sendMessage:request
                                   replyHandler:^(NSDictionary *reply) {
                                       //handle reply from iPhone app here

                                       NSDictionary *resultDict = [reply objectForKey:WATCH_REQUEST_RESULT];
// Use reply from Phone app
                                   }
                                   errorHandler:^(NSError *error) {
                                       //catch any errors here
// Getting error here 7001 Error.
                                   }
         ];

}

Answer 1

因为 activate 方法是异步的，所以在委托(delegate)方法中使用它，如下所示:

    public func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?){
    print("activationDidCompleteWith")
    if activationState == WCSessionActivationState.activated {
        NSLog("Activated")
        if(WCSession.default().isReachable){

            do {
                try session.updateApplicationContext(
                    [WatchRequestKey : "updateData"]
                )
            }
            catch let error as NSError {
                print("\(error.localizedDescription)")
            }
        }
    }

    if activationState == WCSessionActivationState.inactive {
        NSLog("Inactive")
    }

    if activationState == WCSessionActivationState.notActivated {
        NSLog("NotActivated")
    }
}