Great!
You are correct, Mark. I used LogCat
The NullPointerException is getting generated on line 34 which has
getLastKnowLocation() method.
Now I updated the code and even then the same error comes :
LocationManager lm = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
LocationListener ll = new mylocationlistener();
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
ll);
Location l =
lm.getLastKnownLocation(lm.getProvider(LOCATION_SERVICE).getName());
Log.w("LocationTracker", "The value of Location returned by
getLastKnownLocation() is : " + l.toString());
Log.d("Current Location", l.getLatitude() + "");
Log.d("Current Location",l.getLongitude() + "");
Toast.makeText(this, l.getLatitude() + "" +
l.getLongitude(),Toast.LENGTH_LONG).show();
Thanks again. It would be great if you could guide me further.
Regards,
prayag
On May 5, 2:24 pm, Mark Murphy <mmur...@commonsware.com> wrote:
> On Thu, May 5, 2011 at 2:20 PM, Prayag Pathak <prayag.d.pat...@gmail.com>
> wrote:
> > I am trying to get the latitude and longitude of the current location.
> > Let me clarify, I dont want to implement a listener that will create
> > an event when the location will be changed.
>
> You act as though you have a choice in the matter.
>
>
>
>
>
> > I am trying to create an
> > app that will record the current location on a button click event.
> > Following is my code :
>
> > hdLocMgr = (LocationManager)
> > getSystemService(Context.LOCATION_SERVICE);
> > Log.w("LocationTracker", "The Location Manager is :
> > "+hdLocMgr.toString());
> > hdLocProvider = hdLocMgr.getBestProvider(hdCrit, true);
> > location = hdLocMgr.getLastKnownLocation(hdLocProvider);
> > dlat = location.getLatitude();
> > dlon = location.getLongitude();
> > Log.w("LocationTracker", "The value of Latitude is :
> > "+dlat.toString());
>
> > The code gives a RunTimeException (caused by NullPointerException as
> > stated in it).
>
> Use adb logcat, DDMS, or the DDMS perspective in Eclipse to examine
> LogCat and look at the stack trace to find the line that has the
> NullPointerException. If I had to guess, your location variable is
> null, because getLastKnownLocation() is null, because there is no
> location for the provider, because you have not requested location
> updates on that provider.
>
> --
> Mark Murphy (a Commons
> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> _Android Programming Tutorials_ Version 3.4 Available!- Hide quoted text -
>
> - Show quoted text -
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