格式化和本地化charts_flutter时间序列图表中的日期标签

dependencies:
  flutter:
    sdk: flutter
  intl: ^0.17.0

import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:charts_flutter/flutter.dart' as charts;

class TimeSeriesChartWidget extends StatelessWidget {
  final List<charts.Series> seriesList;
  final bool animate;

  TimeSeriesChartWidget(this.seriesList, {required this.animate});

  @override
  Widget build(BuildContext context) {
    return charts.TimeSeriesChart(
      seriesList,
      animate: animate,
      domainAxis: charts.DateTimeAxisSpec(
        tickFormatterSpec: charts.AutoDateTimeTickFormatterSpec(
          day: charts.TimeFormatterSpec(
            format: 'd',
            transitionFormat: 'MM/dd/yyyy',
          ),
        ),
      ),
    );
  }
}

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    final List<charts.Series<TimeSeriesData, DateTime>> seriesList = [
      charts.Series<TimeSeriesData, DateTime>(
        id: 'Sales',
        colorFn: (_, __) => charts.MaterialPalette.blue.shadeDefault,
        domainFn: (TimeSeriesData sales, _) => sales.time,
        measureFn: (TimeSeriesData sales, _) => sales.sales,
        data: [
          TimeSeriesData(DateTime(2022, 01, 01), 5),
          TimeSeriesData(DateTime(2022, 01, 02), 25),
          TimeSeriesData(DateTime(2022, 01, 03), 100),
          TimeSeriesData(DateTime(2022, 01, 04), 75),
          TimeSeriesData(DateTime(2022, 01, 05), 80),
        ],
      )
    ];

    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: Text('Time Series Chart'),
        ),
        body: Center(
          child: TimeSeriesChartWidget(seriesList, animate: true),
        ),
      ),
    );
  }
}

class TimeSeriesData {
  final DateTime time;
  final int sales;

  TimeSeriesData(this.time, this.sales);
}