public List<Geocache> getCheckedCaches() {
        final List<Geocache> result = new ArrayList<>();
        for (final Geocache cache : list) {
            if (cache.isStatusChecked()) {
                result.add(cache);
            }
        }
        return result;
    }
Apply a new filter to the adapter (e.g. after filter was changed by user in menu)
main/src/main/java/cgeo/geocaching/ui/CacheListAdapter.java