As primeiras vezes não funcionam"Nulo"(antes de abrir o aplicativo no iPhone)

e algumas vezes não funciona, mas eu quero um loop ou timer para repetir esta solicitação para obter resultado:

aqui está o meu código

- (void)application:(UIApplication *)application handleWatchKitExtensionRequest:(NSDictionary *)userInfo reply:(void (^)(NSDictionary *))reply
{
    // Temporary fix, I hope.
    // --------------------
    __block UIBackgroundTaskIdentifier bogusWorkaroundTask;
    bogusWorkaroundTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
        [[UIApplication sharedApplication] endBackgroundTask:bogusWorkaroundTask];
    }];
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [[UIApplication sharedApplication] endBackgroundTask:bogusWorkaroundTask];
    });
    // --------------------

    __block UIBackgroundTaskIdentifier realBackgroundTask;
    realBackgroundTask = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^{
        reply(nil);
        [[UIApplication sharedApplication] endBackgroundTask:realBackgroundTask];
    }];

    // Kick off a network request, heavy processing work, etc.

    // Return any data you need to, obviously.
    // reply(nil);
    reply(@{@"Confirmation" : @"Text was received."});

    [[UIApplication sharedApplication] endBackgroundTask:realBackgroundTask];

    //  NSLog(@"User Info: %@", userInfo);




}

Watch App Code

- (void)willActivate {
    // This method is called when watch view controller is about to be visible to user
    [super willActivate];




    NSDictionary *dictionary = [[NSDictionary alloc] initWithObjectsAndKeys:@"MyCamande", @"OK", nil];

    [InterfaceController openParentApplication:dictionary reply:^(NSDictionary *replyInfo, NSError *error) {
        NSLog(@"Reply received by Watch app: %@", replyInfo);
    }];

}

como pode recordar para obter finalmente resultado