Android Question Catch all notification 100% ....

I´n not sure it will work with higher versions of Android. Android is limiting the OS from year to year.

But as a start
Check NotificationListener.

I think that this example work only if MainApp is active ... if MainApp isn't active notifications are not captured.... or?

You should start a new thread for any NEW question.

If you need to catch when not active then i guess you need to have a foreground service running. Search for "Background Location Tracking" for an example.

js1234 said:

I think that this example work only if MainApp is active ... if MainApp isn't active notifications are not captured.... or?

Click to expand...

This example works fine because you can capture and filter notifications in the notification service - so it doesn't have to be in the active MainApp. What I do, is when I detect notification from a certain app (based on the package name) I send a notification (using NB6) so I can see it on the lock screen.
You capture the notification in Sub Listener_NotificationPosted, and you can also detect if it was cancelled by the user in Sub Listener_NotificationRemoved.