Navigation uses Service.startForeground() to say that the user is currently aware of it so it can't be considered expendable.
On Mon, Jan 24, 2011 at 5:33 PM, mikeee <mike.engelh...@gmail.com> wrote: > So you're saying Google Navigation *doesn't* use a wakelock and > continually receive gps updates or that it's somehow an evil > application because it uses the battery quickly? > > > > > On Jan 24, 5:24 pm, Mark Murphy <mmur...@commonsware.com> wrote: > > On Fri, Jan 21, 2011 at 8:11 AM, mikeee <mike.engelh...@gmail.com> > wrote: > > > I've got an app that starts a service in order to receive location > > > updates from the LocationManager. The use case is the service needs > > > to be running all the time and as such it acquires a > > > PowerManager.PARTIAL_WAKE_LOCK in the onCreate() of the Service. > > > > This sounds evil from the standpoint of battery life, if nothing else. > > > > > But it seems from testing on several different phones and user > > > feedback that the Service is still being put to sleep as the location > > > notifications will stop if the application isn't in the foreground. > > > > Android does not put applications to sleep. In your case, Android is > > probably terminating your service for being everlasting and using a > > perpetual WakeLock. > > > > > This effectively renders the app ineffective for the task at hand. > > > I've read posts about using an Alarm to simulate a pseudo cron job but > > > I don't really need to be woken up in order to do a task, the app > > > needs to run code based on the location manager calling > > > onLocationChanged the service that the users position has changed. > > > > You can experiment with my LocationPoller, which is designed for your > scenario: > > > > https://github.com/commonsguy/cwac-locpoll > > > > > yet the fact that it > > > effectively stops running in some cases is causing problems for the > > > users. > > > > That is because you cannot write everlasting services. Please use > > AlarmManager and something (LocationPoller or your own design) to > > write so you do not have a service and WakeLock in memory all of the > > time. > > > > -- > > Mark Murphy (a Commons Guy)http://commonsware.com| > http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > > Android Training in London:http://bit.ly/smand1andhttp://bit.ly/smand2 > > -- > 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<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- 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
