It has been a while since i had to do this but i n...

# android

[ziv kesten]

It has been a while since i had to do this but i need to pass some data from a forground service back to activity before the service closes.
I used to do that using LocalBroadcastManager.
Is there a newer way to do that in kotlin? with flows or other types of streams?

[okarm]

Nope, the mere existence of Kotlin doesn’t add any new means of communication between Android system components. It’s just a programming language.

The kotlin-parcelize plugin is very handy though, so it may help you with sending parcelables with the LocalBroadcastManager

[ziv kesten]

Well, this may not be related to kotlin, but if I declare a liveData object, I can use it in the service and observe it in the activity.
The question is what are the drawbacks and risks envloved.

I can also inject a viewModel with flows and states to the service but again, I am not sure what the risks are in terms of leaks.

[okarm]

As for Flow, you can of course use `DataStore`/(SharedPreferences-based-observable-storage) as the communication medium.

I mean if you're feeling particularly naughty you can employ a global SharedFlow. Everything depends on the use case.