Launch Google maps app and get directions

GoogleMaps.java

  String latitude = String.valueOf(49.08);
  String longitude = String.valueOf(122.45);
  Uri gmmIntentUri = Uri.parse("google.navigation:q=" + latitude + "," + longitude);
  Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri);
  mapIntent.setPackage("com.google.android.apps.maps");

  try{
      if (mapIntent.resolveActivity(getActivity().getPackageManager()) != null) {
          startActivity(mapIntent);
      }
  }catch (NullPointerException e){
  }