Yes if the device does not have a GPS, or if the user has turned off the GPS, you will only get cell or network based location.
On Wed, Dec 29, 2010 at 12:47 PM, mohammad shankayi <mohd...@gmail.com>wrote: > 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<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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
