I have learnt how to send a push notification, it works well but I need to send a notification to the user even after the app has been closed. So far I know how to send it while the application is running. How do you send a notification when app is in the background or when its even closed, on Android?
There are many answers to this, you could use a Service in background and through that you could do, that service would be running at all times.
If you want your notification to be popped up at some specific point of time, you can specifically use BROADCAST RECEIVER. And with the help of PENDING INTENT, you can easily achieve this task.
About all the above keywords stated, you can easily find in the documentation of Android online.
Hoping that I was helpful...
In case of any more queries... Do ask and clarify.
Thank you...
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I searched through a lot of documentation and other answers but I cannot figure out what is the correct way to have a background service that performs some work and sends notifications. I found a lot of deprecated methods.
I don't want a foreground service that comes with a permanent notification on user's device.
I want a sort of live notification when something happens in my application like Whatsapp does when there are new messages.
I tried to set a standard service with the start_sticky clause, but what I got is that my service starts completely randomly. More or less Android decides to start my service once every 20 minutes.
This is not what I want. I want a service that is always vigilant like Whatsapp that sends a notification when it realizes that a message is present.
Can anyone provide to me a clear explanation and example, please?
I created my Direct Reply in onMessageReceived(), and it works fine, when the app is in the foreground.
How can I use Direct Reply in push notification, when app is in the background?
I found a similar question, but no correct answer.
Is it even possible?
My project is based on jitsi meet for android. I'm planning to go with react-native and firebase. The requirement is if one person calls the other person they will receive a call screen with ringtone. How can I achieve this if the app is not running in background?
This is a very tricky solution that you're trying to implement, especially it's working will vary a lot when it comes to deploying the application on Chinese OEM apps.
The process that you could instead follow is, Listen for FCM notifications along with that attach a payload to validate what kind of push notification is it. Based on that if it's a push notification for an incoming call, you can launch a foreground service which will allow your app to stay active and at the same time use a custom Broadcast Receiver. The Broadcast Receiver will receiver a trigger from your FCM Service and that will be used to open an activity that has your call screen UI.
Feel free to connect for a any help needed.
Using FCM, if there's a push notification, app automatically opens even if its not in background. But i believe you need to pass url on click of push notification of which triggers Deeplinking to actually trigger that page when the app opens, so directly it would navigate to the jitsi call page.
Check this link rn - deep link
Hope it helps. feel free for doubts
The Push Notifications are received fine when the App is closed by navigating back or when closed from Recent Apps.
But when the App is force-stopped from Settings, then the App doesn't receive the Push Notifications. I don't know if it is a limitation of the platform or I'm missing something.
How to change the App to receive Push Notification even if force-stopped?
Read this post please! It's possible that you uses a simple broadcast receiver then broadcast receiver don't guarantee the service is working always finally if you want to have service works all time you need to use WakefulBroadcastReceiver class.
-- Edited 2 hours later --
This is not limitation from WakefulBroadcastReceiver class, then you're missing something because WakefulBroadcastReceiver class it's prepared for this situations. If I force to close my app this one can receive notifications from the GCM in my case... Then I have a few questions...
It's obviously that something is incorrect... We need to see your code (Receiver and Intent).
In the other cases you can receive push?
Tell me if I helped you and good programming!
I have a very hard time to finding real solution.I searched a lot but I cant find any good solution for my problem.
I want to perform some action when user click on notification.So I have to check whether application in background or foreground. If it is in foreground then which activity is running ? There must be simple way to find this.
Please Guide me on this.Any help will be appreciated.
You should listen in two places of your application:
In your activity to show the alert.
In your service to show the notification check if activity is running using one of following solutions.
You have severals answers there summarizing the solutions:
Android: how do I check if activity is running?
Checking if an Android application is running in the background
Because If application is in background then show notification otherwise show alert.
Then you do not care "whether application in background or foreground" or "If it is in foreground then which activity is running".
You simply care that, when the event occurs, either the foreground UI handles it (if there is a foreground UI), or else you show a Notification.
One approach is to use an ordered broadcast, as I blogged about a couple of years ago. Here is a sample app that demonstrates this. Basically, the service(?) sends an ordered broadcast. The UI has a high-priority receiver for that broadcast when it is in the foreground, and it aborts the broadcast and consume the event. You also have a low-priority receiver, one that will only get control if the UI did not consume the event, that will display the Notification.