DropdownButton

머티리얼 디자인 버튼입니다.

class _MyHomePageState extends State<MyHomePage> {

  final _valueList = ['내것', '여기', '저기'];

  var _selectedValue;

  @override

  Widget build(BuildContext context) {

    return Scaffold(

        appBar: AppBar(

          title: Text("DropDownButton"),

        ),

        body: Padding(

          padding: const EdgeInsets.all(8.0),

          child: Center(

            child: DropdownButton(

                hint: Text('선택해주세요'),

                value: _selectedValue,

                items: _valueList.map((value) {

                  return DropdownMenuItem(value: value, child: Text(value));

                }).toList(),

                onChanged: (value) {

                  print(value);

                  setState(() {

                    _selectedValue = value;

                  });

                }),

          ),

        ));

  }

}