Android :: Application Not Shutting Down GPS

I have two apps that take advantage of GPS. The recommendation of the SDK is for setting up the location listener is to set time at 60000ms or 1 minute. My tests show if you use that number when exiting the app it may not shutdown GPS. Even using the call to stop location updates when onStop is called doesn't necessary help. In fact one test app doesn't have that call and may shut down anyway on exit. When the number is reduced (as in some examples I found online) to 100 ms then it usually always shuts down. IOW, the satellite icon disappears as it should. I've read some posts here and elsewhere but this issue seems to still be open.

Correct me if I'm wrong but I would think the 1 minute update might be appropriate for a program that will stay open for awhile. My users may only look at the program temporarily and not need updates over a long time. So I'm thinking of leaving the value at 100 ms which seems to work.