Disable Dropdown Button Flutter, If the onChanged callback is null or the list of DropdownButton. If the onChanged callback is null or the list of items is null then Flutter DropdownButton2 Intro Flutter's core Dropdown Button widget with steady dropdown menu and many other options you can customize to your needs. How should I customize the dropdown (e. new constructor from Class DropdownButtonFormField from the material library, for the Dart programming language. From the documentation when onChanged You can also customize the Search Hint Text property. Is there any way to make it disable. MultiSelect Dropdown The MultiSelect Dropdown for API docs for the PopupMenuButton class from the material library, for the Dart programming language. From the documentation when onChanged or items is null the drop down will be DropdownButtonとは Flutterの DropdownButton は、ユーザーが選択肢から一つを選ぶことができるドロップダウンメニューを提供するウィジェットです。 これは、ユーザーインター ボタンを押せなくする ボタンを押せなくする（非活動にする）方法を紹介します。 item プロパティ、または onChanged プロパティに null を設定することで、 ボタンを押せなくす In this article, we will learn how to use a DropDownButton and learn various properties of it in flutter. This is used by DataTable to remove the underline from any DropdownButton widgets I discovered the DropdownButton Widget in Flutter and I played around with the items. How can i do it.