Question

I am trying to retrieve my current location on the button click in an editbox using gps or network..i have tried all possible methods which i found in tutorials and older posts….but my location is always null..
i am not getting where i am wrong.?
i am testing it on real device having network but no internet/gprs…

this is the code which i am using..i tried the same with GPS_PROVIDER as well ..please help me..

     protected void showCurrentLocation() 
   {
     geocoder = new Geocoder(this); 
     locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
     locationManager.requestLocationUpdates(
                LocationManager.NETWORK_PROVIDER, 
                MINIMUM_TIME_BETWEEN_UPDATES, 
                MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
                new MyLocationListener()
        );

   Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
   System.out.println("loc.."+location);
   if (location != null) 
   {
   String message = String.format("Location \n Longitude: %1$s \n Latitude: %2$s",
                location.getLongitude(), location.getLatitude());
       Toast.makeText(ShowActivity.this, message,
               Toast.LENGTH_LONG).show();
  //acTextView.setText(message);
   try {
          List<Address> addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 10); //<10>
          for (Address address : addresses) {
              System.out.println("my location .."+address.getAddressLine(0));
            acTextView.setText(address.getAddressLine(0));
          }



        } catch (IOException e) {
          Log.e("LocateMe", "Could not get Geocoder data", e);
        }
    }
    else
    {
    AlertDialog.Builder alertbox1 = new AlertDialog.Builder(this);
    alertbox1.setMessage("No GPS or network ..Signal please fill the location manually!");
    alertbox1.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface arg0, int arg1) 
    {}});
    alertbox1.show();
    }

}   

I am just editing the question instead of asking the new one..because my problem is still related to the same…i didn’t change anything in the code and this is working perfectly fine now…..But the issue is when i use the GPS_PROVIDER ,it returns the accurate address along with the value of longitude and latitude..but when i use NETWORK_PROVIDER it returns only the value of longitude and latitude no address…i want to retrieve the full address using NETWORK_PROVIDER because GPS not works indoor …How can i do that?

Thanks…!!

Answer 1

pleas check your manifest file.whether have you added those permissions or not.

 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>

See the updated answer:

protected void showCurrentLocation() 
       {
         geocoder = new Geocoder(this); 
         locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
         locationManager.requestLocationUpdates(
                    LocationManager.NETWORK_PROVIDER, 
                    MINIMUM_TIME_BETWEEN_UPDATES, 
                    MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,
                    myLocationListener
            );
         timer = new Timer();
         timer.schedule(new GetLastLocation(),20000);

       }

     class GetLastLocation extends TimerTask {

            @Override
            public void run() {
                timer.cancel();
                locationManager.removeUpdates(locationListener);
                 Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                   System.out.println("loc.."+location);
                   if (location != null) 
                   {
                   String message = String.format("Location \n Longitude: %1$s \n Latitude: %2$s",
                                location.getLongitude(), location.getLatitude());
                       Toast.makeText(ShowActivity.this, message,
                               Toast.LENGTH_LONG).show();
                  //acTextView.setText(message);
                   try {
                          List<Address> addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 10); //<10>
                          for (Address address : addresses) {
                              System.out.println("my location .."+address.getAddressLine(0));
                            acTextView.setText(address.getAddressLine(0));
                          }



                        } catch (IOException e) {
                          Log.e("LocateMe", "Could not get Geocoder data", e);
                        }
                    }
                    else
                    {
                    AlertDialog.Builder alertbox1 = new AlertDialog.Builder(this);
                    alertbox1.setMessage("No GPS or network ..Signal please fill the location manually!");
                    alertbox1.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface arg0, int arg1) 
                    {}});
                    alertbox1.show();
                    }
                }   
                return;
            }
        }

     /** The location listener. */
        LocationListener myLocationListener = new LocationListener() {

            public void onLocationChanged(Location location) {

            }
            public void onProviderDisabled(String provider) {}
            public void onProviderEnabled(String provider) {}
            public void onStatusChanged(String provider, int status, Bundle extras) {}
        };