android - Recognize when a notification posted / removed is in a group -

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i'm trying play notificationlistenerservice check if statusbarnotifications (displayed in statusbar) inherent group (ex. mails or messages). i'm using sdk >= 21.

playing applications well-known fb, whatsapp or gmail saw different rules marking grouped messages (group , key properties - of statusbarnotification - not easy manage purpose).

how possible recognize when notification posted / removed in group? , group header?

there isn't possibility achieve statusbarnotification. possible onnotificationremoved/posted & getactivenotifications.


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