调用 flutter 第三方时间组件

https://pub.flutter-io.cn/packages/flutter_cupertino_date_picker

flutter_cupertino_date_picker: ^1.0.12

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

class DatePage extends StatefulWidget{
  DatePage({Key key});
  _DatePage createState() => _DatePage();
}

class _DatePage extends State {
  _showDatePicker() {
    DatePicker.showDatePicker(
        context,
        pickerTheme: DateTimePickerTheme(
          showTitle: true,
          confirm: Text('确定'),
          cancel: Text('取消')
        ),
        minDateTime: DateTime.parse('2020-00-00'),
        maxDateTime: DateTime.parse('2030-00-00'),
        initialDateTime: DateTime.now(),
        dateFormat: 'yyyy-MM-dd HH:mm:ss',
        locale: DateTimePickerLocale.zh_cn,
        pickerMode: DateTimePickerMode.datetime,
        onClose: () {
          print('onClose');
        },
        onCancel: () {
          print('onCancel');
        },
        onChange: (val, List<int> index) {
          print(val);
          print(index);
        },
        onConfirm: (val, List<int> index) {
          print(val);
          print(index);
        },
    );
  }
  @override
  Widget build(BuildContext context) {
    // TODO: implement build
    return Scaffold(
      appBar: AppBar(
          title: Text('Date')
      ),
      body: ListView(
        children: <Widget>[
          InkWell(
            child: Column(
              children: <Widget>[
                SizedBox(height: 50,),
                InkWell(
                  child: Text('${DateTime.now()}'),
                  onTap: () {
                    _showDatePicker();
                  },
                )
              ],
            )
          )
        ],
      )
    );
  }
}