ubuntu-phone team mailing list archive

[rpsoft <rpsoft@xxxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Dave,

Thank you for the information.
I'll try the suggested way in the next few days.
But it's sound very complicated to find a possible solution for the
type of my app.
I guess some rules (sleep, lock, stay on) for an app would be helpful.

Thanks,
Ralph

On 20.04.2015 11:08, Dave Morley wrote:
> On Sun, 19 Apr 2015 16:22:54 -0400 Rodney Dawes
> <rodney.dawes@xxxxxxxxxxxxx> wrote:
> 
>> Not currently, no. In the future, when background processing is 
>> available in some form, there should be a way for your app to get
>> some data and process it, from the system service, in the
>> background, though. I don't know when that will be possible,
>> however.
>> 
>> Until then, the only way to have continuous processing for your
>> app, is to ensure it is in the foreground, and the screen does
>> not lock. The latter can be set by changing the screen timeout to
>> Never in System Settings. This is something the person using your
>> app would have to enable on their phone though, and they would
>> also need to take care to keep the app in the foreground.
>> 
>> 
>> On Sun, 2015-04-19 at 20:02 +0200, rpsoft wrote:
>>> Hi Rodney,
>>> 
>>> Thanks for clarification. The name of my app is "BikeMap". So,
>>> is there any chance to prevent my app from pause if the screen 
>>> is locked ?
>>> 
>>> Regards, Ralph
>>> 
>>> On 19.04.2015 19:35, Rodney Dawes wrote:
>>>> What is your app? GPS itself remains active, as it is a
>>>> system service, but when the screen is locked your app will
>>>> be paused, so it will not be able to receive or perform any
>>>> updates.
>>>> 
>>>> 
>>>> On Sun, 2015-04-19 at 16:53 +0200, rpsoft wrote:
>>>>> Hi,
>>>>> 
>>>>> I took again some tests with my app these days.
>>>>> Unfortunately seems the gps device going to sleep while the
>>>>> phone is locked. It has worked fine some month ago.
>>>>> Currently I'm on the stable channel, Nexus 4 and I can't
>>>>> track any gps data anymore if the phone is locked. Any
>>>>> ideas how do I can prevent this ?
>>>>> 
>>>>> Thank you. Regards, Ralph
>>>> 
>> 
> 
> Gps was turned off during sleep and non-active apps (ie background
> apps) due to the fact that it was a constant drain on the battery.
> This improved battery considerably but makes things like this not
> work. There is one solution which is to keep your screen on and the
> app active then you will keep gps active.  "powerd-cli display on"
> or something along those lines. This will drain the battery
> considerably. The other might be a fix in the rules that currently
> turn off gps so that you can have it on all the time.  Thomas Voss
> might be able to help you with that.  I have CC'd him in the
> email.
> 
> 
> 
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iQEbBAEBAgAGBQJVNSWOAAoJEPvI2+9QzMhjh2UH+PXajPUw5wLkd99U/XfMWwbR
NRAZdNd+AgoVhPDuF8gRQgQQPrfxou7h2w2xrKZIKYMsmvhCCokrkqmHZBS6krd+
IJc2BVqM2PXjlXwE2VQ+yRSuYZJ84gg/FZXLwtk6uHUN9dO5eBbmEuFz2fhXQPvC
FKUL8OWVkhk17WGv00FBezK7Lgm4qqyev+uTVuVSkKBWQEifZ5Majf+mattOFPP6
aIULWmwRTjuQZHq8K8irhBxr+TzvNT8/ztRLgyV1g8HrW59n9alW/WfFXZFXUGzA
aahgEyTg5gNpEaBqrLSiDoedgpt0mBLeHRsB743AFXshq130Wh00Uump0K2x1Q==
=cUgO
-----END PGP SIGNATURE-----