dianne is right but this ability is only in A-gps devices and as we know all android devices has the ability of positioning with cell towers :) sincerely mohammad shankayi
On Wed, Dec 29, 2010 at 12:23, Dianne Hackborn <hack...@android.com> wrote: > That doesn't really make sense. When you ask for location, you will > specify how accurate you want the data to be. If you ask for GPS accuracy, > it will start using that (if it hasn't already). You keep the request open, > so it continuously looks for satellites and tracks movement. Each update it > gives you includes the accuracy of the position, which is based on the > source of the data (network, GPS, etc), and for GPS the number of > satellites. > > Often when you first ask for GPS data, there will be no GPS fix at all, but > you will still be able to get some data based on cell towers. The accuracy > information tells you how much you can infer from each report you get. But > this is not a one-shot request -- as long as you have asked for position > reports, it will continually monitor the location as accurately as it can. > > There is of course the newer API to get the last location, and of course > that is what it says -- the last reported location, whatever that was, > without use GPS or cell towers to try to determine the current location. > > > On Wed, Dec 29, 2010 at 10:59 AM, t <tomers...@gmail.com> wrote: > >> how accurate is the data from Android's GPS location provider? >> >> does the device always try to seek a satellite, or does it sometimes >> return an optimization of the past locations without querying the >> satellites? >> >> if this question is device-specific, i'm asking about HTC Hero, HTC >> Desire and Google Nexus One. >> >> thanks >> >> -- >> 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<android-developers%2bunsubscr...@googlegroups.com> > 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 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
