How to get information on an already sent notification?

Question

Android

Hello.
There is an app that sends notifications.
How can I get information about the status of already sent notifications from this application? (read, hidden, deleted)
UPDATE: Thanks
to https://toster.ru/user/thelongrunsmoke for the help

Answer 1

Until the 18th, the well-known approach works with checking the PendingIntent assigned to the notification.
Starting from the 18th there is a NotificationListenerService. But, more precisely, BUT, access to notifications is required, which can only be obtained by asking the user to provide it manually.
From the 23rd you can use getActiveNotifications() in NotificationManager.
Bottom line: you probably don't need it.