Android Question Is it valid for Service_Destroy event to not be called when OS kills service?

[JohnC]

I know that the below post about services says "Sub Service_Destroy is called when you call StopService".

Service Modules

This is an old tutorial. Most of the information here is no longer correct. Basic4android v1.2 adds support for Service modules. Service modules play an important role in the application and process life cycle. Start with this tutorial if you haven't read it before: Android Process and...

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But I'm seeing that this Event is not triggered when the OS kills the service under low-memory conditions.

So, is this expected behaivior or is Service_Destroy only gauranteed to be called with just a StopService call?

If this can happen, then I guess my app should not assume any code in this sub will always run when the service stops.

 

[Erel]

Service_Destroy will not be raised when the OS kills the process. It will be raised when the OS or your code stops the service.

 

[JohnC]

Curious, what conditions would decide if the OS would "Stop" vs. "Kill" the service?

 

[Erel]

STOP:
1. You call StopService.
2. The OS stops non-foreground services after about a minute when the app is in the background.

KILL PROCESS:
1. App is in the background and the OS decides that the app should no longer run. It can happen after a minute or after 10 hours. Depends on many factors.