public ItemSelectModel<T> setChoiceMode(final ChoiceMode choiceMode, final boolean singleSelectWithOk) {
            this.singleSelectWithOk = singleSelectWithOk;
            super.setChoiceMode(choiceMode);
            return this;
        }
Set choice mode. For SINGLE-RADIO, it can be defined whether clicking on item immediately means choice
main/src/main/java/cgeo/geocaching/ui/dialog/SimpleDialog.java