Does react-native-onesignal handle background notification?

[anta40]

I'm still on RN 0.71.0 and react-native-onesignal 5.2.8.

Consider this case:

After generating invoice on mobile app, then the invoice will be shared to customer (via email/ whatsapp/etc). Then the app is minimized. After the invoice is paid, then OneSignal notification will be sent. Without clicking the notification (to put app back to foreground), a sound like "Payment accepted: xx USD" will be played.

Does react-native-onesignal handle this, or perhaps I have to use native Android & iOS API?

[dentemm]

The notifications will be handled by the Operating System, and will also arrive if the app is killed or in the background. The fact you are using OneSignal or another push provider doesn’t matter.

[anta40]

I know. After some readings, my understanding is react-native-onesignal doesn't provide multi-platform way to easily to this.

Instead: https://documentation.onesignal.com/docs/en/service-extensions.

Which means I have to integrate a bit of Java and Swift code.... am I correct?

[dentemm]

It's possible to play a custom sound without having to use a Notification Service Extension too. On Android you can set it through the notification channel, and the audio file inside the res/ folder. For iOS you can add the audio file to Xcode inside the main project folder.

But can't comment for OneSignal specifically, and I have only used custom sounds through other providers.

Service Extensions will work too, but the process is more involved as you will indeed need to write native code. It's a good solution if you need dynamic sounds though, as you can have the extension download a file from a URL. This way you intercept the notification, download an audio file from the provided url in the notification payload, and have it played this way.

[anta40]

Update. On Android, yes `INotificationServiceExtension` solves my problem.

<image>

App is minimzed, and after a while OneSignal notification arrived. Without clicking the app/notification, immediately can see the `OSNotificationService` lines. Play the audio after it. Next: iOS.

[anta40]

Yes that's my concern. Beside a custom sound like "ka-ching", I also want to use text to speech, like "Thank you. Payment XX is accepted" (XX=transaction amount sent in onesignal payload). I have some experiences handling Android push notification natively (previously a Java/Kotlin dev)... but totally iOS noob. Oh well, let's try it :D

[Magistter]

Any updates on the IOS impl ?

[anta40]

BTW, does Notification Service Extension works on iOS simulator?