Aside from that, I'd be pretty weary of the security of any app that was constantly tracking me for hours straight.
The *only* situation where I see this making sense is when I go out for a day of hiking or something, and even then I don't want anything *that* accurate, because I just don't move all that fast... Maybe once every twenty or thirty minutes.. Maybe there's a lot of people who want to constantly see where they are and record it..., but I can't think of too many (besides the obvious navigation apps.) Kris On Mon, Apr 2, 2012 at 5:10 PM, Sean Barbeau <[email protected]> wrote: > I agree with Kristopher, GPS eats up battery energy quickly and you have to > be careful using GPS in an app to avoid exhausting the user's battery. > > We've done extensive work to come up with some dynamic GPS sampling > strategies that increase battery life because of this reason. Check out > slide 5 in this presentation: > http://www.locationaware.usf.edu/wp-content/uploads/2011/11/Barbeau-GPS-Auto-Sleep-patent3.pps > > With a HTC Hero, sampling GPS every 4 seconds and doing nothing else (i.e., > Wifi, screen off) the battery is exhausted after 5 hrs. This matches up > with the guidance given by the MyTracks folks at Google who say you'll > typically get less than 5 hrs of battery life when using MyTracks: > http://support.google.com/gmm/bin/answer.py?hl=en&answer=2391538&topic=2391064&ctx=topic > > So, given that users depend on their phone to do other things (like make > phone calls), you need to use GPS wisely. > > Sean > > > On Friday, March 30, 2012 10:10:53 PM UTC-4, lbendlin wrote: >> >> A full battery on the phone can easily support 8 hrs of constant GPS >> tracking, especially when the screen is off. Now go walk for 8 hrs. >> >> On Thursday, March 29, 2012 3:37:37 PM UTC-4, Kristopher Micinski wrote: >>> >>> Yes, having GPS going on a lot will be bad for your battery..., you >>> have to live with it. >>> >>> You can try getting the location from a passive provider, but that's >>> somewhat spotty, of course..., If you want to use GPS, you have to be >>> willing to pay the price.. >>> >>> kris >>> >>> On Thu, Mar 29, 2012 at 3:29 PM, Spica <[email protected]> wrote: >>> > Hmm... would be expenssive on battery coz GPS would be working all >>> > that time. >>> > >>> > Any different idea? >>> > >>> > On Mar 29, 12:59 pm, lbendlin <[email protected]> wrote: >>> >> Nothing huge about it. You only get one data row per second max. >>> >> SQLite is >>> >> laughing at that. >>> >> >>> >> >>> >> >>> >> On Thursday, March 29, 2012 12:22:47 PM UTC-4, Spica wrote: >>> >> >>> >> > Guys, >>> >> > How i can save GPS locations while i am walking? I will be >>> >> > displaying >>> >> > my walking track which i will recording while walking. Where i would >>> >> > be saving all those huge number of locations on my phone? >>> >> > There are few apps in the market who are doing that, please share >>> >> > your >>> >> > ideas how and where they save this data? >>> >> >>> >> > Thanks,- Hide quoted text - >>> >> >>> >> - Show quoted text - >>> > >>> > -- >>> > 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
