【Flutter】Flutter 使用 table_calendar 实现自定义日历

import 'package:flutter/material.dart';
import 'package:table_calendar/table_calendar.dart';
 
void main() => runApp(MyApp());
 
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: HomePage(),
    );
  }
}
 
class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}
 
class _HomePageState extends State<HomePage> {
  CalendarController _controller;
  DateTime _selectedDate;
 
  @override
  void initState() {
    super.initState();
    _controller = CalendarController();
    _selectedDate = DateTime.now();
  }
 
  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }
 
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Table Calendar Example'),
      ),
      body: Column(
        mainAxisSize: MainAxisSize.min,
        children: <Widget>[
          TableCalendar(
            calendarController: _controller,
            events: _events,
            startingDayOfWeek: StartingDayOfWeek.sunday,
            calendarStyle: CalendarStyle(
              selectedColor: Colors.deepOrange[400],
              todayColor: Colors.deepOrange[200],
              markersColor: Colors.deepPurple,
              outsideDaysVisible: false,
            ),
            headerStyle: HeaderStyle(
              titleTextStyle: TextStyle(
                color: Colors.orange,
                fontSize: 18,
              ),
            ),
          ),
          SizedBox(
            height: 50.0,
          ),
          Text(_selectedDate.toString()),
        ],
      ),
    );
  }
 
  Map<DateTime, List<dynamic>> _events;
 
  // Example events
  void _generateExampleEvents() {
    const int daysBefore = -30;
    const int daysAfter = 30;
    _events = {};
    for (int i = 0; i < (daysBefore + daysAfter + 1); i++) {
      final DateTime day = DateTime.now().add(Duration(days: i));
      if (day.weekday == DateTime.saturday