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