Thanks for your help guys. I can see where I'm going wrong so should be able to make some progress now.
Cheers. On Nov 30, 10:23 am, Neilz <[email protected]> wrote: > Yes, the first attempt at grabbing a location is often null. You need > to add a listener (onLocationChanged) and take it from there. > > On Nov 29, 7:03 pm, Lance Nanek <[email protected]> wrote: > > > > > If you use the Logcat view in Eclipse or the "adb logcat" command from > > the SDK on the command line you can see why your app is crashing. In > > this case it is probably that getLastKnownLocation is returning null, > > which it can as per the > > documentation:http://developer.android.com/intl/zh-CN/reference/android/location/Lo... > > > You can't call methods like getLatitude on null. Look at the > > requestLocationUpdates methods for a way to get locations that > > actually starts up the location provider. > > > I remember in earlier SDKs you could add mock locations by putting a > > file somewhere on the phone. I don't think that is supported any more. > > See the note above the "Providing Mock Location Data" heading > > here:http://developer.android.com/intl/zh-CN/guide/topics/location/index.html > > > On Nov 28, 12:03 pm, redants1972 <[email protected]> wrote: > > > > Thanks for the advice. I am still having trouble however. > > > > When I add the debug line as advised, the app falls over and as far as > > > I can tell, 'location' is coming out as null. > > > > If I comment out the log.i code then it works ok. So it seems to me > > > that there is something wrong with the way I am trying to get my > > > coordinates. > > > I'm not sure what I should be expecting when I load the KML file, as > > > nothing appears in the panel. It's not clear to me how the loading > > > of the KML file or manual coordinates actually link to the line - > > > > Location location = locationManager.getLastKnownLocation("gps"); > > > > I thought the "gps" part referred to the folder location under "C: > > > \Program Files\android-sdk-windows-1.6_r1\tools\data\misc\location", > > > but I could have got that wrong. > > > > Any further advice would be greatly appreciated. I think one of the > > > issues here is my inexperience in using the IDE and the way in which > > > run time errors can be viewed and trapped. > > > > Cheers, > > > > On Nov 27, 4:55 pm, Neilz <[email protected]> wrote: > > > > > Hi. As you are using Eclipse, you can use the Android plug in, and the > > > > build in Emulator Control, to load up your KML file and manually send > > > > location updates to the emulator. You find it at Window->Show View- > > > > > >Other->Android->Emulator Control. That should get you going. > > > > > To debug: > > > > > import android.util.Log; > > > > > Log.i("MyCLassName", "Lat: " + location.getLatitude() + " Long: " + > > > > location.getLongitude()); > > > > > Hope this helps. > > > > > On Nov 24, 9:38 pm, redants1972 <[email protected]> wrote: > > > > > > I am trying to produce a mock location provider by using an example > > > > > kml file grabbed from somewhere (where I cannot remember now). Anyway > > > > > I think I also need a properties file but I'm not sure where this goes > > > > > and what it is called. > > > > > > The code I am using is - > > > > > > locationManager = (LocationManager)getSystemService > > > > > (Context.LOCATION_SERVICE); > > > > > Location location = locationManager.getLastKnownLocation("gps"); > > > > > > double lat = location.getLatitude(); > > > > > double lng = location.getLongitude(); > > > > > > It seems that I am not getting anything back from the kml file, but as > > > > > a beginner to Android and Java I am struggling to debug the problem. I > > > > > am using eclipse Ganymede. > > > > > > What I need really is some pointers on the following: > > > > > > 1. How do I debug so that I can see the values of Location.getLatitude > > > > > () and location.getLongitude(); ? > > > > > 2. I am referencing "gps" as my provider and have a kml file located > > > > > at C:\Program > > > > > Files\android-sdk-windows-1.6_r1\tools\data\misc\location > > > > > \gps . Is this correct? > > > > > 3. How do I create the properties file? > > > > > 4. Any other advice would be greatly appreciated. > > > > > > I have scoured the net for answers but nothing seems to fit what I am > > > > > after. I have also tried to go to > > > > > URLhttp://code.google.com/android/toolbox/apis/lbs.html > > > > > but it redirects me tohttp://developer.android.com/guide/index.html > > > > > > Thanks in advance, -- You received this message because you are subscribed to the Google Groups "Android Beginners" 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-beginners?hl=en
