syncfusion_flutter_calendar 18.2.55

The Syncfusion Flutter Calendar widget has built-in configurable views that provide basic functionalities for scheduling and representing appointments/events efficiently.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_calendar/calendar.dart';
import 'package:syncfusion_flutter_core/core.dart';

void main() {
  // Register your license here
  SyncfusionLicense.registerLicense('ADD YOUR LICENCE KEY HERE');
  return runApp(CalendarApp());
}

class CalendarApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(title: 'Calendar Demo', home: MyHomePage());
  }
}

class MyHomePage extends StatefulWidget {
  // ignore: prefer_const_constructors_in_immutables
  MyHomePage({Key key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  List<Meeting> meetings;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: SfCalendar(
      view: CalendarView.month,
      dataSource: MeetingDataSource(_getDataSource()),
      // by default the month appointment display mode set as Indicator, we can
      // change the display mode as appointment using the appointment display mode
      // property
      monthViewSettings: MonthViewSettings(
          appointmentDisplayMode: MonthAppointmentDisplayMode.appointment),
    ));
  }

  List<Meeting> _getDataSource() {
    meetings = <Meeting>[];
    final DateTime today = DateTime.now();
    final DateTime startTime =
        DateTime(today.year, today.month, today.day, 9, 0, 0);
    final DateTime endTime = startTime.add(const Duration(hours: 2));
    meetings.add(Meeting(
        'Conference', startTime, endTime, const Color(0xFF0F8644), false));
    return meetings;
  }
}

class MeetingDataSource extends CalendarDataSource {
  MeetingDataSource(List<Meeting> source) {
    appointments = source;
  }

  @override
  DateTime getStartTime(int index) {
    return appointments[index].from;
  }

  @override
  DateTime getEndTime(int index) {
    return appointments[index].to;
  }

  @override
  String getSubject(int index) {
    return appointments[index].eventName;
  }

  @override
  Color getColor(int index) {
    return appointments[index].background;
  }

  @override
  bool isAllDay(int index) {
    return appointments[index].isAllDay;
  }
}

class Meeting {
  Meeting(this.eventName, this.from, this.to, this.background, this.isAllDay);

  String eventName;
  DateTime from;
  DateTime to;
  Color background;
  bool isAllDay;
}