I'd like to notify user only once, no matter how many local notifications are going to be send with the same ID. I'm using awesome_notifications package. Also tried flutter_local_notifications
Imagine the scenario that I'd like to display downloading progress, updating notification content e.g. each second. It's easily achievable on Android using following configuration with onlyAlertOnce
final NotificationChannel channel = NotificationChannel(
channelKey: 'basic_channel',
channelName: 'channel_name',
channelGroupKey: 'channel_group_key',
channelDescription: 'channel_description',
onlyAlertOnce: true,
)
However, the same channel configuration on iOS keeps sending alert&badge&sound each time I create notification with the same ID.
Is similar behavior achievable on iOS, that User will see updated notification content in Notification Center, but without being alerted?
Related
Flutter Incoming Callkit notifications are working fine on my iOS app in all states (foreground/background/terminated).
On iOS device, issue is when my app is in background or terminated state and if I open any other app after closing or minimizing my application , I stop getting callKit notification in both background/terminated state.
I don't know that which part can cause this issue i.e if its from my code or its the problem in iOS device itself. Because besides opening another app after closing/minimizing my app, I am getting call notifications in all states of my app.
[Note: Everything is working fine in the Android app]
This is the silent notification being received to the receiver from cloud function.
await admin.messaging().send({
token: token_o,
notification: {
},
data: {
imageUrl: requesterImageUrl,
chatRoomId: chatRoomId,
screenName: 'voiceScreen',
voiceCall: 'voiceCall',
callerName: requesterName,
callsDocId: callsDocId,
senderId: requesterId,
},
android: {
notification: {
click_action: "android.intent.action.MAIN"
},
},
apns: {
headers: {
apns_priority: "10",
},
payload: {
aps: {
badge: 1
},
notification: {
title: "iOVoiceCallNotification",
body: {},
},
mutable_content: true,
content_available : true,
}
}
}).then(value => {
functions.logger.log("Notification for AudioCall is sent to the Receiver");
}).catch((e) => {
functions.logger.log(e.toString());
});
I can provide anyother code or log if required.
I simply had to configure pushKit to awake iOS from background & terminated state.
Note: Even for pushKit, I had to create a token for iOS device from the getVoipToken() function that is present in flutter_call_kit incoming package.
Inorder to recieve callKit notifications perfectly in background/terminated states in IOS you have to do following necessary things:
Implement APNs (Apple push notifications) for IOS. Because IOS devices will not wake the phone and show call when you send firebase notifications in background/terminated states. IOS devices require APNs to achieve this.
Follow the instructions written in PUSHKIT.md if you are using flutter_callkit_incoming package for flutter app.
Configure your backend (from where you want to recieve notifications) to send both firebase and APN notifications depends upon the device user is using. (I recommend you to send the platform e.g "android" or "ios" along with the device token to your backend when you register the firebase token in flutter app. You can also ask for IOS deviceToken from firebase.
I know its very lengthy process but it is. I was also very disappointed when I was required to integrate call notifications in my app and I have to do all this on my frontend app and backend.
I want to display a push notification when my app is in the background.
I am using the flutter_local_notifications package and the firebase_messaging package.
Push notifications are working great with firebase_messaging and when my app is the background.
However, the below method :
// The following handler is called, when App is in the background.
FirebaseMessaging.onBackgroundMessage(firebaseMessagingBackgroundHandler);
is not called if a RemoteNotification object is passed through the RemoteMessage :
Future<void> firebaseMessagingBackgroundHandler(RemoteMessage message) async {
print('message from background handler');
print("Handling a background message: ${message.messageId}");
// If this is null, then this handler method is called
RemoteNotification remoteNotification = message.notification;
showNotificationFromData(message.data);
}
Therefore, i have to pass the message.data object which is a Map<String, dynamic>.
My problem is that i don't receive push notification anymore when this firebaseMessagingBackgroundHandler handler method is called.
So i have been trying to use the flutter_local_notification package to display a push notification but as it is said, it's "local" so it's working fine in the Foreground but apparently not in the background (the same code, with the same data is not showing in the background as a push notification).
Question :
I need to call the firebaseMessagingBackgroundHandler handler to handle events in my app. So i can do to still have push notifications when my app is in the background please ?
Thanks
Okay i have found the solution. It was to set the content_available value to True in the server-side code.
To replace the firebase_messaging.Notification item, we need to override to the android and apns configs.
This looks like this in python :
apnsConfig = messaging.APNSConfig(
payload=messaging.APNSPayload(
aps=messaging.Aps(
content_available=True,
)
),
)
I am now receiving push notifications and call the background handler inside the dart code.
I know this bit too late but anyone trying to get custom notification using firebase then here is the solution
For Android (Flutter)
On Android, notification messages are sent to Notification Channels which are used to control how a notification is delivered. The default FCM channel used is hidden from users, however provides a "default" importance level. Heads up notifications require a "max" importance level.
This means that we need to first create a new channel with a maximum importance level & then assign incoming FCM notifications to this channel. we can take advantage of the flutter_local_notifications package
Add the flutter_local_notifications package to your local project.
Create a new AndroidNotificationChannel instance:
const AndroidNotificationChannel channel = AndroidNotificationChannel(
'high_importance_channel', // id
'High Importance Notifications', // title
'This channel is used for important notifications.', // description
importance: Importance.max,
);
(keep in mind this is example code but you can custimize notification through notification channel code)
Create the channel on the device:
final FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
Once created, we can now update FCM to use our own channel rather
than the default FCM one. To do this, open the
android/app/src/main/AndroidManifest.xml file for your
FlutterProject project. Add the following meta-data schema within
the application component:
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="high_importance_channel" />
now whenever you send notification specify your channel id and your app automatically show your custom notification (through api or firebase console)
{
"message":{
"token":"token_1",
"android_channel_id":"high_importance_channel" //specify channel id here
"data":{},
"notification":{
"title":"FCM Message",
"body":"This is an FCM notification message!",
}
}
}
as for ios they don't support notification channel i don't have necessary resources and info how things works if you guys know comment below will be much appriciated
I have an app that was using firebase messaging 7.0.3 and all worked perfectly. But when I migrated to firebase messaging 9.0.0, the push notifications are not being handled.
I know that the app is correctly linked to firebase and cloud messaging because in background I see the push notification comming, the problem is when I click that notification the app don't handle this event. Also, when the app is in foreground, the event of receiving the notification is not being triggered.
Specifically, the functions FirebaseMessaging.onMessage and FirebaseMessaging.onMessageOpenedApp are not working. My code is:
FirebaseMessaging.onMessage.listen((RemoteMessage message) {
print("notification: message");
});
FirebaseMessaging.onMessageOpenedApp.listen((RemoteMessage message) {
print("notification: resume");
});
The prints are never called, and if I put some more code inside isn't executed too.
I also call FirebaseMessaging.getToken and I can get the token, plus when the app is in background I get the push notification, so is not a link problem with firebase. In the logs, when I receive the push I can see a message saying: Broadcast received for message. So I assumed that the push is arriving in all the occasions, and I am doing something wrong in the code.
I tested all cases in Android and iOS physical devices.
Someone know why this occurs?
I came across this exact same issue after migrating and upgrading to 9.0.0.
There is a minor issue with 9.0.0 plugin.
The fix can be found here:
https://github.com/FirebaseExtended/flutterfire/issues/4949
To cut a long story short, if you navigate to the definition of the factory
RemoteMessage.fromMap() Using Cmd+Click or Ctrl+Click while hovering over the RemoteMessage class with the mouse), in the return statement, change contentAvailable: map['contentAvailable'], to contentAvailable: map['contentAvailable']??false.
Notifications are now working for me again now.
This should work for you until the plugin is fixed.
I have been trying for several months to implement an app that receives notifications whose content I want to be stored in the database of my application. I am using the Firebase Messagging plugin and I am receiving the notifications correctly, both in Foreground and in Background.
However, in the background I am unable to execute my callback without the need to press the notification explicitly by the user. Likewise, there is no way to increase the badge of the application when it is not open.
Now, I do not understand how applications like WhatsApp, Telegram and any other application that is not made by mere mortals work. How is it possible that they can get the data in backgroud, manage the badges, synchronize messages, etc? Being that, supposedly the services like Firebase are limited in background. Even with plugins like Background Mode my application is suspended by Android when the user closes it.
The code that I am currently using to handle notifications is the following:
// In foreground (WORKS)
this.firebaseMessaging.onMessage().subscribe((notificacion) => {
// Insert in DB
...
});
// In background (DOESN'T WORK)
this.firebaseMessaging.onBackgroundMessage().subscribe((notificacion) => {
// Insert in DB
...
});
What alternative is left? The only thing that occurs to me is to use notifications in Foreground and background only as a warning. So every time I open the application I'll have to call a message synchronization callback with the server (with badge management included).
If someone has some better way, I would greatly appreciate it if you throw a little light on the subject.
From already thank you very much
Ok, after more than a year I think it's time to close this question. I solved the problem this way:
Suppose I need to get a list of messages. This action is made by a function called getMessages()
When a new message is created in the backend, I send a push notification through Firebase service.
If the push notification is received in foreground I refresh call the method directly:
this.firebaseMessaging.onMessage().subscribe((notificacion) => {
getMessages();
});
If the push notification is received in background and the user taps on it there isn't a problem as it's supported by the plugin:
this.firebaseMessaging.onBackgroundMessage().subscribe((notificacion) => {
getMessages();
});
If the push notification is received in background but the user DOES NOT tap on it and opens the app in another way than the notification, we need to excecute the corresponing function when the app is opened in app.component.ts file:
this.platform.ready().then(() => {
getMessages();
// Extra stuff like this.statusBar.styleDefault(); or this.splashScreen.hide();
});
That way all the cases are considered! You should keep in mind that apps like Whatsapp or Telegram are developed in official technologies like Java or Kotlin which not only have official native plugins, also its code are excecuted natively and not in a limited browser as Cordova or Capacitor frameworks do
I am using this plugin (http://ngcordova.com/docs/plugins/localNotification/) for local notifications on Ionic. I want to be able set custom times for recurring notifications. Cordova Local Notification object has an "every" attribute but I want to be to change what time the notification is triggered each time it is triggered instead of just relying on what is set on the "every" attribute. I have tried updating the notification on trigger to reset the "at" attribute but it does not work
$rootScope.$on('$cordovaLocalNotification:trigger',
function (event, notification, state) {
var newDate = getNewDate();
$cordovaLocalNotification.update({
id: notification.id,
at: newDate,
every: "year",
message: notification.message,
title: notification.title,
data: notification.data
});
});
I tried not using the every "attribute" so that it uses the default value of 0 which means that the notification triggers just once and then I can schedule a new one with the date I want but on both iOS and Android emulators, the notifications are coming persistently. It seems there is a problem when "every" has a value of 0