[android-developers] Re: ReverseGeocoding NullPointerException

Also be aware that there might be devices out there which do not implement the Geocoder functionality. From the SDK doc:

The Geocoder class requires a backend service that is not included in the core android framework. The Geocoder query methods will return an empty list if there no backend service in the platform. Use the isPresent() method to determine whether a Geocoder implementation exists.

So you cannot just access the first returned item of the address list. You must also check its size.
 

On Wednesday, August 8, 2012 7:13:26 AM UTC-5, Ece Osmanağaoğlu wrote:

I wanna get current location.
There is null pointer exception in List<Address>

        locMan = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);

        gpsProv = LocationManager.GPS_PROVIDER;
        locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 250, Kampusler.this);
        myGeo = new Geocoder(Kampusler.this, Locale.getDefault());
       
        loc = locMan.getLastKnownLocation(gpsProv);       
        try
        {
            List<Address> adres = myGeo.getFromLocation(loc.getLatitude(), loc.getLongitude(), 1);
                if(adres != null)
                {
                    for(int i=0; i < adres.get(0).getMaxAddressLineIndex(); i++)
                    { 
                        result += adres.get(0).getAddressLine(i) + "\n";
                    }      
                }
                else
                {
                    Toast.makeText(Kampusler.this, "Don't get address...", Toast.LENGTH_LONG).show();
                }
        }
        catch (Exception e)
        {
            e.printStackTrace();
            Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
        }

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