Question

我的代码可以获取远程通知和远程消息，最后一个问题是在后台应用程序时无法获取远程消息（只需打开应用程序然后获取它）

当我在后台推送远程通知和应用程序时，它看起来像是期待的通知消息显示，点击此通知然后它将我带到我的应用程序。我不知道为什么远程消息没有这样的行为（我使用postman和“https://fcm.googleapis.com/fcm/send”来发送远程消息）

。 Plz有人帮助我这是我的代码

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Register for remote notifications
    if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_7_1) {
        // iOS 7.1 or earlier. Disable the deprecation warnings.
        UIRemoteNotificationType allNotificationTypes =
        (UIRemoteNotificationTypeSound |
         UIRemoteNotificationTypeAlert |
         UIRemoteNotificationTypeBadge);
        [application registerForRemoteNotificationTypes:allNotificationTypes];

    } else {
        // iOS 8 or later
        // [START register_for_notifications]
        if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_9_x_Max) {
            UIUserNotificationType allNotificationTypes =
            (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge);
            UIUserNotificationSettings *settings =
            [UIUserNotificationSettings settingsForTypes:allNotificationTypes categories:nil];
            [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
        } else {
            // iOS 10 or later
  UNAuthorizationOptions authOptions =
            UNAuthorizationOptionAlert
            | UNAuthorizationOptionSound
            | UNAuthorizationOptionBadge;
            [[UNUserNotificationCenter currentNotificationCenter]
             requestAuthorizationWithOptions:authOptions
             completionHandler:^(BOOL granted, NSError * _Nullable error) {
             }
             ];

            // For iOS 10 display notification (sent via APNS)
            [[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];
            // For iOS 10 data message (sent via FCM)
            [[FIRMessaging messaging] setRemoteMessageDelegate:self];
        }

        [[UIApplication sharedApplication] registerForRemoteNotifications];
        // [END register_for_notifications]
    }

    // [START configure_firebase]
    [FIRApp configure];
    // [END configure_firebase]
    // Add observer for InstanceID token refresh callback.
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(tokenRefreshNotification:)
                                                 name:kFIRInstanceIDTokenRefreshNotification object:nil];

    return YES;
}

// [START receive_message]
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    // If you are receiving a notification message while your app is in the background,
    // this callback will not be fired till the user taps on the notification launching the application.
    // TODO: Handle data of notification

    // Print message ID.
    NSLog(@"didReceiveRemoteNotification1 ID: %@", userInfo[@"gcm.message_id"]);

    // Print full message.
    NSLog(@"didReceiveRemoteNotification1 %@", userInfo);
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
    // If you are receiving a notification message while your app is in the background,
    // this callback will not be fired till the user taps on the notification launching the application.
    // TODO: Handle data of notification

    // Print message ID.
    NSLog(@"didReceiveRemoteNotification2 ID: %@", userInfo[@"gcm.message_id"]);

    // Print full message.
    NSLog(@"didReceiveRemoteNotification2 %@", userInfo);
}
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
       willPresentNotification:(UNNotification *)notification
         withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler {
    // Print message ID.
    NSDictionary *userInfo = notification.request.content.userInfo;
    NSLog(@"willPresentNotification: %@", userInfo[@"gcm.message_id"]);

    // Print full message.
    NSLog(@"willPresentNotification %@", userInfo);
}

- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
         withCompletionHandler:(void (^)())completionHandler {
    NSDictionary *userInfo = response.notification.request.content.userInfo;
    NSLog(@"didReceiveNotificationResponse: %@", userInfo);
}

- (void)applicationReceivedRemoteMessage:(FIRMessagingRemoteMessage *)remoteMessage {
    NSLog(@"%@", [remoteMessage appData]);
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Alert" message:[NSString stringWithFormat:@"%@", [remoteMessage appData]] delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Ok", nil];
    [alert show];
}
- (void)tokenRefreshNotification:(NSNotification *)notification {

    NSString *refreshedToken = [[FIRInstanceID instanceID] token];
    NSLog(@"InstanceID token: %@", refreshedToken);
    [self connectToFcm];
}
- (void)connectToFcm {
    [[FIRMessaging messaging] connectWithCompletion:^(NSError * _Nullable error) {
        if (error != nil) {
            NSLog(@"Unable to connect to FCM. %@", error);
        } else {
            NSLog(@"Connected to FCM.");
        }
    }];
}
- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error {
    NSLog(@"Unable to register for remote notifications: %@", error);
}
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    NSLog(@"APNs token retrieved: %@", deviceToken);
    [[FIRMessaging messaging] setAPNSToken:deviceToken];
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    [self connectToFcm];
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
    [[FIRMessaging messaging] disconnect];
    NSLog(@"Disconnected from FCM");
}

Answer 1

对于遇到同样问题的其他人。

经过大量搜索，我找到了解决方案，非常简单，你需要按照firebase app消息的内容使其通过推送通知服务可读。你可以看到here 和here

这是在背景模式下向设备显示的示例：）

{
  "condition": "'condition1' in topics && 'condition2' in topics",
  "notification": {
      "category": "notification_category",
      "title_loc_key": "notification_title",
      "body_loc_key": "notification_body",
      "badge": 1
  },
  "data": {
    "data_type": "notification_data_type",
    "data_id": "111111",
    "data_detail": "FOO",
    "data_detail_body": "BAR"
  }
}

现在一切都像期待的那样，然后第二个工作就是修改消息内容，就像你想要的那样：）

objective C FCM如何在后台应用程序时获取远程消息

1 个答案: