Finding lan,lat using network & passive in android

  LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
                List<String> providers = lm.getProviders(true);
                System.out.println("providers size"+providers.size());
                for(int i=0;i<providers.size();i++){
                     System.out.println("providers "+providers.get(i));
                }
                Location l = null;
                for (int i=providers.size()-1; i>=0; i--) {
                l = lm.getLastKnownLocation(providers.get(i));
            
                if (l != null) break;
                }

                double[] gps = new double[2];
                if (l != null) {
                gps[0] = l.getLatitude();
                gps[1] = l.getLongitude();
                lat2=gps[0];
                lng2=gps[1];