I have function Called SaveDateAndTime();
This function store date and time inside my application in Localstorage,
But my question, when Pushwoosh notifications Occurred, can I invoke my function SaveDateAndTime() even my application is not running? and save date and time in LocalStorage?
Please note :SaveDateAndTime() this function inside my application .
When the application will be launched in response for user interaction with push notification your code will be running. You can use this function in your push notifications handler.
Related
I am trying to update my app's badge count number of my flutter app when receiving push notifications when the app is terminated.
The Firebase messaging background handler works fine if the app is in the background but doesn't work when the app is terminated.
I have read in the documentation :
On iOS, if the user swipes away the application from app Switcher, it must be manually reopened again for background messages to start working again.
Does it mean that on iOS there is no way to update the badge count using the firebase background handler (by the logic you implement in the handler of course, just need the handler to be called) ?
Any app do this today so i wonder why it would not be possible with Firebase Messaging.
I have actually found a solution, by using a service extension in swift and passing data as payload server side, using content-available: true in python.
Here is the documentation i have followed to implement the notification server side.
Also, there is an ongoing bug / feature request for flutter and Firebase regarding this case.
Currently, my app gets all the push notifications when in the background and terminated state (currently implementing local notification).
When I send custom data in the Firebase console, all the data is correctly passed to the app when it is run foreground and background. However, when the app is terminated, the push message comes but the data is not retrieved successfully(only null data).
Is there any way to solve this? I don't understand why the push comes but then data does not.
It would be really nice if you help out!
If you app startup from FCM message click when your app terminated, you need to custom this
FirebaseMessaging.instance.getInitialMessage().then((message) { //do something })
For FCM push you will get data when app was in killed stae and push notification come and user tap on notification then you will get data in launcher screen.
We've been using Shiny framework for Local Notifications and it has done what we needed which is make a notification appear on iOS and Android that when tapped will open the app.
However the OnReceived method on the INotificationDelegate never gets called on iOS. This has been the case forever IIRC but was of no real concern as we didn't need to do anything with the OnReceived except track it in AppCenter. Therefore fixing it never got prioritised.
Recently we have been looking at using Push Notifications. We are not using Shiny's push and instead are registering the device using out our own backend WebApi.
I am seeing a problem where our AppDelegate override of ReceivedRemoteNotification does not get called if i call the UseNotifications extension in our ShinyStartup ConfigureServices. We want to continue using Shiny for Local Notifications so this is a problem.
I am wondering if the issue that means our local notification received delegate does not get called is related to this issue.
You are using ReceivedRemoteNotification which is for the "old" way of catching remote notifications in the foreground. Shiny.Notifications uses a UNUserNotificationCenterDelegate which I believe intercepts and stops that method. You can implement the Shiny notification delegate to work with the notification or use Shiny.Push.AzureNotificationHubs.
You can also use: DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action completionHandler) which is a better method to handle remote notifications anyhow since it is needed for background processing
How can I open the flutter app based on notification data using FirebaseMessaging?
So, when I tap on a notification (received through Firebase Messaging), the message handler should evaluate the data and based on them open the app. At the moment it is asynchronous, meaning the app starts and the notification handler continues the work.
It is important to know, that Navigator.push can't be used, as there is an important app setup screen, which checks the auth state and so on at app start. How to solve this issue?
When you tap a notification from the device's notification centre the operating system will launch the app, provided of course you have set up Firebase messaging correctly as per instructions the onLaunch or onMessage functions will get called.
Now since firebase messaging configured pretty much as early as possible, typically inside the main entry of the flutter app you will need to store the notification somewhere first. This can be a global state object created before anything that uses it.
final notifications = <NotificationData>[]; // globally accessible (i.e. via Provider)
Then in the handler of the messages...
NotificationData onMessage(Map<String, dynamic> data) {
notifications.add(NotificationData.fromJson(data));
}
The flutter app will start and the MaterialApp will get built. At this point you can have a loading screen to check if the user is authenticated or any new messages in the notifications global state. If there are you can route to a page to display the notification, or get the user to sign in then route to the notification page.
I have made an app with the use of firebase. It is basically a chat application in which you van send and receive the text and images. I want to add a functionality in it that whenever a user sends a msg, then another user should get a notification . When I try to send a notification through the firebase console, then it is working, but when a user messages through the app, then it is not showing any notification to another user. So, can anyone tell me that how can this functionality be achieved ?Also, provide some sample code to see how things are working
You need to use cloud functions for that:
https://firebase.google.com/docs/functions
Cloud Functions for Firebase lets you automatically run backend code in response to events triggered by Firebase features and HTTPS requests
First, you can register the user to a topic:
FirebaseMessaging.getInstance().subscribeToTopic("news");
https://firebase.google.com/docs/cloud-messaging/android/topic-messaging
Then when the message is sent to the database, you can use onWrite() in cloud functions which is a database trigger to be able to send the notification.
https://firebase.google.com/docs/functions/database-events