GPS position is a bit overkill and I don't think my users would really be happy with my app doing that. I do like the idea of running in the background and using the last-known (cell tower) coordinates. I'm just affraid many users might not have a data plan and so the coordinates can get easily outdated if they don't connect to wi-fi with a certain frequency. The whole point of having this feature is for the users that travel a lot and there is a good chance that they won't have open wi-fi available just anywhere.
The app is actually for use in Brazil but I think it might not be so hard to get hold of a database of cities and their area codes. On Oct 20, 5:59 pm, Kostya Vasilyev <[email protected]> wrote: > Right, there is only less than a thousand area codes in the US, > actually much less because they can't start with "0", "1", or "2" (if I > remember right). > > So having a predefined mapping from GPS coordinates in the application > seems feasible. > > Now getting area code coordinates for the mapping is another issue > entirely. Maybe this info is available.... somewhere? > > -- Kostya > > 20.10.2010 23:40, Miguel Morales пишет: > > > > > > > > > > > Ah my mistake, I didn't read the last part. You could also just do > > the network operation in the background and when the user is about to > > make a call just use the last-known co-ordinates. > > > On Wed, Oct 20, 2010 at 12:36 PM, Miguel Morales > > <[email protected]> wrote: > >> Perhaps by using GPS position and some sort of area code database you > >> might be able to conjure up something. > > >> On Wed, Oct 20, 2010 at 11:37 AM, Denis Souza<[email protected]> > >> wrote: > >>>> Is that really possible? > >>> Frankly I don't think so... but not 100% sure either. Just wanted to > >>> see if there are any ideas out there that could solve the problem. > > >>> On Oct 20, 12:42 pm, Julie Andrews<[email protected]> wrote: > > >>>> On Wed, Oct 20, 2010 at 6:29 PM, Denis Souza<[email protected]> > >>>> wrote: > >>>>> Hi > >>>>> I'm trying to find out if the user is still within range of his own > >>>>> area code. Detecting roaming doesn't solve the problem since the user > >>>>> may still be in the same network with a different area code. I thought > >>>>> about getting the user's coarse location to find the city he's is in > >>>>> but this approach needs Internet access and might not be fast enough > >>>>> (this is done as the user is making a call and needs to finish before > >>>>> the call is made). > >>>>> Is there any way I can do this with just the info from the cellular > >>>>> network? > >>>>> Denis Souza > >>>>> -- > >>>>> 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]<android-developers%2Bunsubs > >>>>> [email protected]> > >>>>> For more options, visit this group at > >>>>>http://groups.google.com/group/android-developers?hl=en > >>>> -- > >>>> Juliehttp://tradinglogically.blogspot.com<http://tradinglogically.blogspot.com>http://vikitionary.blogspot.comhttp://gandhi-the-man-of-millenium.blo... > >>> -- > >>> 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 > > >> -- > >> ~ Jeremiah:9:23-24 > >> Android 2D MMORPG:http://developingthedream.blogspot.com/, > >>http://www.youtube.com/user/revoltingx > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget > --http://kmansoft.wordpress.com -- 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
