public void setAdvancedMode(final boolean isAdvanced) {
            binding.filterDelete.setVisibility(isAdvanced ? View.VISIBLE : View.GONE);
            binding.filterDrag.setVisibility(isAdvanced ? View.VISIBLE : View.GONE);
            this.filterViewHolder.setAdvancedMode(isAdvanced);
        }
Show a filter selection using an {@code ExpandableListView}.
main/src/main/java/cgeo/geocaching/filters/gui/GeocacheFilterActivity.java