Partial wake lock works just fine with accelerometer sensor on Nexus One 2.2 (tested this for over than 6 months as a part of my research), although this might not be the case for different combination of device and OS version.
2011/7/20 Dianne Hackborn <[email protected]> > Prior to 2.3 the sensors were turned off when the screen went off in order > to reduce battery use. This was changed on 2.3, though it's possible we are > actually going to end up regretting that change. :p > > Also even as of 2.3, I wouldn't be surprised if some device's drivers are > still turning off the sensor hardware as part of their power management when > the screen goes off. > > On Wed, Jul 20, 2011 at 8:53 AM, Chris Conry <[email protected]> wrote: > >> And your guess was completely correct. Thank you. The problem is >> still happening, as soon as I hit the power button the data stops logging. >> Is there something else im missing about wakelock? >> >> >> On Wed, Jul 20, 2011 at 11:26 AM, Mark Murphy <[email protected]>wrote: >> >>> Use adb logcat, DDMS, or the DDMS perspective in Eclipse to examine >>> LogCat and look at the stack trace associated with your runtime error. >>> My guess is that you do not hold the WAKE_LOCK permission. >>> >>> On Wed, Jul 20, 2011 at 11:21 AM, Chris Conry <[email protected]> wrote: >>> > Thanks for the replys, >>> > Looking into it the partial wake lock should be my solution, but it >>> isnt >>> > implementing well. I keep getting a runtime error on acquire(). my code >>> > looks like: >>> > PM = (PowerManager) >>> getSystemService(Context.POWER_SERVICE); >>> > WL= PM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Wakelock"); >>> > WL.acquire(); >>> > I put this in the onStartCommand(), is that incorrect? Should >>> > only acquire the wakelock when the screen turns off? >>> > Thank you >>> > On Wed, Jul 20, 2011 at 3:59 AM, Filip Havlicek < >>> [email protected]> >>> > wrote: >>> >> >>> >> Acquire a partial wake lock, that should help. >>> >> >>> >> 2011/7/20 Jan Nielsen <[email protected]> >>> >>> >>> >>> The common ways to sleep in java, only counts cpu time on the Android >>> >>> platform. >>> >>> So a Thread.sleep(60 * 1000); may become 5 or 10 minutes if the phone >>> >>> is in standby, since it only counts when the cpu is awake. >>> >>> >>> >>> afaik you need to use AlarmManager to get called when the phone is in >>> >>> standby. >>> >>> Even a handler postDelayed wont work, as that is also wake time. >>> >>> >>> >>> On 19 Jul., 23:20, Chris Conry <[email protected]> wrote: >>> >>> > I'm trying to build an app that logs sensor data(using a service), >>> and >>> >>> > stores it into an SQLite database. My problem is that it stops >>> logging >>> >>> > when >>> >>> > the screen is off. It works perfectly fine when the screen is on, >>> but >>> >>> > when i >>> >>> > turn the screen off the data doesn't start logging until I turn the >>> >>> > screen >>> >>> > on. The process isn't being killed, because it works when the >>> screen >>> >>> > comes >>> >>> > back on. >>> >>> > >>> >>> > I've tried implementing it as a Thread. I think that wont work >>> because >>> >>> > it >>> >>> > needs a context for the database. And I read that using >>> >>> > "startForeground", >>> >>> > but it didn't change. >>> >>> > >>> >>> > Any Suggestions? Can anyone help? >>> >>> > >>> >>> > Thank you >>> >>> >>> >>> -- >>> >>> 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 >>> >> >>> >> -- >>> >> 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 >>> > >>> > -- >>> > 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 >>> >>> >>> >>> -- >>> Mark Murphy (a Commons Guy) >>> http://commonsware.com | http://github.com/commonsguy >>> http://commonsware.com/blog | http://twitter.com/commonsguy >>> >>> Android Training...At Your Office: http://commonsware.com/training >>> >>> -- >>> 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 >>> >> >> -- >> 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 >> > > > > -- > 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 > -- 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
