On Sat, Jan 15, 2011 at 12:35 PM, Kevin Duffey <andjar...@gmail.com> wrote:
> I thought you weren't really supposed to "quit" an app? I know the Android > system will kill an app when necessary to reclaim resources. I have seen > apps, including google maps that allow you to exit. In the case of google > maps, if you're using the navigation, and don't exit, it keeps on talking > and drains your battery pretty fast. I've learned from experience to exit > that app! So I guess I can see a time when it should exit. But I thought by > listening to the activity events of pause/resume, and so forth you can use > those to exit the app gracefully? > In navigation, exit isn't exiting the app, it's exiting the active (very power hungry) navigation mode of the app. > For that matter, since games use threads, don't they have to stop the > threads, save state, and such when a user presses home to exit out of it? > Yes they should. Which is the same as if the user receives a phone call, etc. When the user leaves your app for whatever reason, you should stop your execution. Of course this is fuzzy: if the user has explicitly asked you to continue doing some work (playing music, navigating) then of course you will do so (but this work is associated with a service, not an activity); and some apps may continue doing some remaining work immediately after the user leaves, such as finishing the retrieval of a web page in the browser. -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
