Re: [android-developers] When using LocationManager.requestLocationUpdates, do I need a WakeLock?

2012-05-11 Thread ste1024

Am Sonntag, 10. Oktober 2010 23:50:35 UTC+2 schrieb Mark Murphy:

 I strongly suspect that you need to hold a WakeLock for as long as you
 are seeking fixes. I am not aware that any location provider has the
 ability to wake up the device.

Sorry for digging up this ancient topic, but an trying to find an answer to 
the same question.
In my app so I am able to receive location updates even if I put the device 
to sleep, without explicitly holding a WakeLock.
I came across what appears to be the Android 2.2 source of the 
GpsLocationProviderhttp://grepcode.com/file_/repository.grepcode.com/java/ext/com.google.android/android/2.2_r1.1/com/android/internal/location/GpsLocationProvider.java/?v=source,
 
and assuming I did not misinterpret the code, it looks like it is really 
able to wake up the device via the AlarmManager.

Can anyone confirm this?

-- 
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

Re: [android-developers] When using LocationManager.requestLocationUpdates, do I need a WakeLock?

2012-05-11 Thread William Kelley


On Friday, May 11, 2012 4:57:35 AM UTC-7, ste1024 wrote:
 

 Sorry for digging up this ancient topic, but an trying to find an answer 
 to the same question.
 In my app so I am able to receive location updates even if I put the 
 device to sleep, without explicitly holding a WakeLock.
 I came across what appears to be the Android 2.2 source of the 
 GpsLocationProviderhttp://grepcode.com/file_/repository.grepcode.com/java/ext/com.google.android/android/2.2_r1.1/com/android/internal/location/GpsLocationProvider.java/?v=source,
  
 and assuming I did not misinterpret the code, it looks like it is really 
 able to wake up the device via the AlarmManager.

 Can anyone confirm this?


I am experiencing the same thing. My GPS app runs for hours and hours 
getting coordinates every 6 seconds, whether it's asleep or not. Either 
WakeLock is not needed for the LocationManager to work non-stop or one of 
the other apps I have installed is using WakeLock. I'm assuming the latter, 
since I have Tasker and AutomateIt running, both off which are time-based 
services. I guess I should check their permissions for WakeLock. Or they 
could just be waking the CPU via the AlarmManager?

It makes me wonder if it's necessary for me to add a WakeLock to my app or 
just rely on the fact that other apps will keep the CPU alive for me.

-- 
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

Re: [android-developers] When using LocationManager.requestLocationUpdates, do I need a WakeLock?

2012-05-11 Thread William Kelley
Just a followup: Tasker and AutomateIt both do have Prevent device from 
sleeping (ie WakeLock) as permissions.

-- 
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

Re: [android-developers] When using LocationManager.requestLocationUpdates, do I need a WakeLock?

2010-10-10 Thread Mark Murphy
On Fri, Oct 8, 2010 at 9:54 AM, iamnoah iamn...@gmail.com wrote:
 I'm trying to get a definitive answer to this question:
 http://stackoverflow.com/questions/3814852/android-when-using-locationmanager-requestlocationupdates-do-i-need-a-wakelock

 Assuming that I receive an RTC_WAKEUP alarm in a broadcast receiver
 and hold a wake lock until I have called requestLocationUpdates, is
 there any need to retain the wake lock to continue to receive updates
 in a timely fashion?

 My guess is that there is not, as having to retain a wakelock would
 cause all kinds of problems for long running location checks, but an
 authoritative word from a platform developer would be good to have as
 the documentation is completely silent on this topic.

I strongly suspect that you need to hold a WakeLock for as long as you
are seeking fixes. I am not aware that any location provider has the
ability to wake up the device.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy

_Android Programming Tutorials_ Version 3.0.1 Available!

-- 
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