firebase data notification problem(when app is killed state)

[kirankotha]

I am developing audio call application when the user kills the app at that time also i need to notify the user for incoming call,currently i am using firebase data notification ,but it not works properly when app closed.please help me out from this problem.

 

[Rukbat]

You want an app to make a notification when it's not running? It can't. Even if it asks Android to not kill it, if it's in the background, and Android really needs the RAM space, the app will be killed.

What you['re asking for is like asking for the app to make a notification after the phone has been turned off. It's just not possible.