how to send notification in android to perticular user?

I just created an app in android which contains a mainactivity and three fragments user rescuer and sponsorer. the fragments open in the mainactivity according to his registration and signup. but I need to send a notification to the rescuers when the user is in danger but when I am running the app the notification is appearing for all the three sponsorer rescuers and users as well? what to do and how can I achieve this that when the user clicks the button for help only the rescuer fragment gets the notification? I am using SQLite database to register all?

https://stackoverflow.com/questions/66610037/how-to-send-notification-in-android-to-perticular-user March 13, 2021 at 12:07PM