> On Apr 16, 12:45 am, JP <[email protected]> wrote: > On Apr 15, 8:35 am, Anna PS <[email protected]> wrote: > > > Yet in my log files, I can > > still see the Android NetworkLocationProvider logging > > onCellLocationChanged events. Is this a bug in my code? > > Without diving into your code. Double check it by using GPS. GPS is > considerably more accurate than base station based triangulation, > which may not result in location changes even if you move a hundred > meters (in my experience, anyway).
The basic issue is this. I don't want to accidentally end up with a LastKnownLocation that's days out of date, so I have to check the age of the location fix. Since the GPS time (from location.getTime()) and the system time can be quite different (as <a href="http://www.mail-archive.com/android- [email protected]/msg47517.html">discussed here</a>, comparing the two doesn't work. The only reliable way seems to be: - get an initial location from getLastKnownLocation - wait for a location update from onLocationChanged - compare the age of the two to make sure the latter is newer. However, I'd also like to write code that handles gracefully the possibility that the user is (say) indoors, and therefore won't get an onLocationChanged event at all. (In which case, we should just take the LastKnownLocation, and never mind if it's out of date.) I seem to be at a logical impasse. What can I do? I can't wait for an onLocationChanged event if it's never going to happen - my code will hang forever! But equally I can't just take getLastKnownLocation every time - it might be wildly inaccurate. Maybe I need to run some kind of timer in the code, to check how long we've been waiting for an onLocationChanged. Does that seem like the best idea? -- 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
