So, i have a service working in the background (when the application is closed) which connects to internet every 2 minutes and gets some data from a database, and if something's wrong i want to alert the user with some kind of a beep tone and a message on the screen or even better in the notification bar. Is it possible to do this and if yes, how?
I think the nicest solution would be to use a SystemBar Notification.
Using the Notification.Builder you can add a custom sound to your notification using setSound(Uri sound).