You need to hold a partial wake lock if you want to ensure that the CPU continues to run while the screen is off. There are very, very few exceptions to this -- broadcasts received from the alarm manager being the big one. There may be a few other broadcasts that hold a wake lock for you while they are being sent, but in almost all cases outside of broadcasts you will need to hold a wake lock.
Also, keep in mind, sitting there monitoring the sensors while the screen is off is probably going to be a pretty big battery drain; at the very least, you'd want to have a very clear UI with the user about what is going on and how they can turn it off. On Sun, Aug 30, 2009 at 10:01 AM, polymorph <[email protected]>wrote: > > Ok, thanks for the reply Mark. > > It seems the documentation doesn't state either way whether anything > will or will not continue to function while in standby. I wonder if > there's anyone from the Android team that could let me know the > official stance on this? > > There's also the situation with the Hero, which won't continue with > these OnSensorChanged() messages even when a WakeLock is in place. > > > > On Aug 30, 5:44 pm, Mark Murphy <[email protected]> wrote: > > polymorph wrote: > > > It's in a background service which does get called for GPS location > > > changes and other things while in standby, so I'd expect it to do so > > > for the sensor changes too (as it did used to in standby). > > > > The subtle point I was trying to get across is that a regression in an > > undocumented capability may or may not be a bug, and therefore may or > > may not be "fixed". The core Android team has been very explicit about > > the risks inherent in relying upon undocumented capabilities, even if > > this undocumented capability was not addressed specifically. For > > example, this issue could very well be dictated by hardware concerns. > > > > -- > > Mark Murphy (a Commons Guy)http://commonsware.com| > http://twitter.com/commonsguy > > > > Android 1.5 Programming Books:http://commonsware.com/books.html > > > -- Dianne Hackborn Android framework engineer [email protected] 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
