Flutter创建下拉月/年选择器

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';

class MyDatePicker extends StatefulWidget {
  @override
  _MyDatePickerState createState() => _MyDatePickerState();
}

class _MyDatePickerState extends State<MyDatePicker> {
  DateTime _selectedDate = DateTime.now();

  @override
  Widget build(BuildContext context) {
    return CupertinoDatePicker(
      mode: CupertinoDatePickerMode.date,
      initialDateTime: _selectedDate,
      onDateTimeChanged: (DateTime newDate) {
        setState(() {
          _selectedDate = newDate;
        });
      },
    );
  }
}

void main() {
  runApp(MaterialApp(
    home: Scaffold(
      appBar: AppBar(
        title: Text('Flutter Date Picker'),
      ),
      body: Center(
        child: MyDatePicker(),
      ),
    ),
  ));
}