private static boolean isValidCoords(final AbstractActivity context, final Geopoint coords) {
        if (coords == null) {
            context.showToast(CgeoApplication.getInstance().getString(R.string.warn_no_coordinates));
            return false;
        }
        return true;
    }
start list activity, by searching around the given point.

@param name name of coordinates, will lead to a title like "Around ..." instead of directly showing the
            coordinates as title
main/src/main/java/cgeo/geocaching/CacheListActivity.java