[android-developers] Re: Does Android's GPS location provider do a built-in optimization?

To be more precise, the GPS draws more power than most other things on
the phone. On my phone, for example, WiFi draws the most power, then
GSP, then Bluetooth, with the ordinary GSM radio link being way down
on the list.

Other phones may have slight variations of this order. And I get such
low power consumption for GSM/GPRS/Edge/HSPA+ receiving when in a
strong signal area, and when listening only. But in general, GPS draws
more power than most other things you could do on your phone. So keep
it on only when you are really using it.

On Dec 30, 6:01 am, Mark Murphy <mmur...@commonsware.com> wrote:
> On Thu, Dec 30, 2010 at 8:55 AM, t <tomers...@gmail.com> wrote:
> > 1. i see that keeping the GPS provider activated drains the battery.
> > do you have suggestions to why is that?
>
> Because it keeps the GPS radio on. The GPS radio draws power. Drawing
> power drains the battery.
>
> > 2. continuing to my first question, how does the update listening
> > mechanism work? i'm guessing the satellites don't know all the phones
> > and push updates to them, so is it really a check every X seconds
> > (depend on the configuration) whether the location has changed?
>
> You can learn about how GPS works in any number of places, such as:
>
> http://en.wikipedia.org/wiki/Global_Positioning_System
>
> --
> Mark Murphy (a Commons Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> _The Busy Coder's Guide to *Advanced* Android Development_ Version 1.9
> Available!

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