My understanding is getLastKnownLocation is used to give your app an immediate location since getting a good GPS fix can sometimes take up to a minute. This way your app would show *something* until a better position can be determined by initializing a provider, setting up your time and distance update intervals, and giving that info to requestLocationUpdates for immediate updates.
Ken On Dec 2, 2:19 pm, jotobjects <[email protected]> wrote: > requestLocationUpdates() docs say - > > "It may take a while to receive the most recent location. If an > immediate location is required, applications may use the > getLastKnownLocation(String) method." > > You could verify that getLastKnownLocation(providerName) returns the > same Location as the argument to onLocationChanged() by logging > getLatitude(), getLongitude(), and getProvider() for both Location > values. If these values are different AND they are different than > what MyLocation shows then there are three different Location values. > It would be interesting to know which one is right! > > On Dec 2, 1:30 pm, stanlick <[email protected]> wrote: > > > > > Are you saying if the CB occurred, indicating a new location "fix" > > that getLastKnownLocation would not also return this last know > > location? I think I tried using the the location local variable > > during one of my permutations and the net effect was the same. Funny > > thing is, while the Android API location shows me several blocks from > > where I am, the My Location button in Google Maps finds me perfectly! > > I have checked all my criteria and it looks okay. ACCURACY_FINE no > > concern for cost, etc. I just don't get it! I wish there was a > > criteria DO_IT_LIKE_GOOGLE_DOES! > > > Sleepless in St. Louis, > > Scott > > > On Dec 2, 3:14 pm, Jeffrey Blattman <[email protected]> > > wrote: > > > > LocationManager. requestLocationUpdates() > > > <http://developer.android.com/reference/android/location/LocationManag...> > > > LocationListener. onLocationChanged > > > <http://developer.android.com/reference/android/location/LocationListe...>(Location > > > <http://developer.android.com/reference/android/location/Location.html> > > > location) > > > > you are passed the location in the CB. no need to call getLastKnown... > > > > On 12/2/09 1:10 PM, stanlick wrote: > > > > > I *am* using the listener loop and using getLastKnownLocation from the > > > > locationManager inside the onLocationChanged() method. Is this not > > > > the correct pattern? > > > > > On Dec 2, 2:31 pm, Lance Nanek<[email protected]> wrote: > > > > >> Why are you using getLastKnownLocation if you want a fresh fix? The > > > >> documentation says it won't even start the location provider. Use > > > >> requestLocationUpdates. > > > > >> On Dec 2, 2:53 pm, stanlick<[email protected]> wrote: > > > > >>> Didn't we put a man on the moon? It can't be done seems a little lazy > > > >>> today! > > > > >>> I have read all the posts about this topic and I understand the > > > >>> arguments being made. However, I would like to know how Google Maps > > > >>> can return my *current* location yet while driving the same stretch of > > > >>> road, the Android API often (not always) gives me a last known > > > >>> location that was miles back. I need to be able to rely on the API to > > > >>> provide me with a *current location* and I have tried all the tricks > > > >>> being proposed here and elsewhere. Is there lower level code > > > >>> someplace that could ping the phone's radio for a "fresh fix?" > > > > >>> If you have solved this riddle, I would be happy to pay for your > > > >>> solution. > > > > >>> Peace, > > > >>> Scott > > > > -- > > > > qr-gmail.png > > > < 1KViewDownload -- 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
