@NonNull
    @WorkerThread
    public static SearchResult searchByFilter(@NonNull final IConnector con, @NonNull final GeocacheFilter filter, @NonNull final GeocacheSort sort) {
        return searchByFilter(con, filter, sort, SEARCH_LOAD_INITIAL, 0);
    }
Searches the view port on the live map with Strategy.AUTO

@param viewport Area to search
main/src/main/java/cgeo/geocaching/connector/gc/GCMap.java