public function dropDownList($items, $options = [])
    {
        $view = $this->form->view;
        MaterializePluginAsset::register($view);
        $id = $this->getInputId();

        $js = "M.FormSelect.init(document.querySelector('#$id'))";
        $view->registerJs($js);

        return parent::dropDownList($items, $options);
    }