Android Question Firebase notifications on Android 8

[marcick]

I'm testing my old app on an Android 8 device and I'm experiencing troubles in receiving notifications.
After some time the app is closed (maybe one hour or so, I still don't know exactely) the app no longer receive notifications. After I close the app it works, but after some time it stops to receive.
Looks like the OS is killing something to save battery, but as far as I can see in system-battery the battery optimization is excluded and the app is not in the list.

Is it a known problem ?

 

[DonManfred]

Check the B4A V8 Releasenotes.
Also https://www.b4x.com/android/forum/threads/android-jar-targetsdkversion-minsdkversion.87610/

 

[marcick]

Yes, I have read those, but as far as I understand firebase notifications should work without any changes with b4A 8.00 and without raising the target sdk.
Am I wrong ?

 

[Erel]

Are you using the B4J tool to send messages?

 

[marcick]

Thanks, I'll have a look at it to easily do experiment.
I have a B4J server that was using GCM notifications for years. Then I applied the changes to use firebase and all works fine in IOS and Android. But I'm experiencing troubles with Android 8.

 

[Erel]

Start with the exact steps from the tutorial. Once it is working you can modify it as needed.

 

[marcick]

Thankyou .
It is not mandatory for now to raise the target sdk to 26, right ?

 

[Erel]

See the relevant dates here: android.jar / targetSdkVersion / minSdkVersion

 

[marcick]

Start with the exact steps from the tutorial. Once it is working you can modify it as needed.

Still have to understand where is the problem exactely, but applying all these changes then everything works again on Android 8:

1) raise target to 26
2) move n.setinfo at the end just before n.notify
3) compile with B4A 8.0

and because sooner or later I'll must do this .... no reason to wait
Thanks