flutter_neat_and_clean_calendar 0.2.3+11

Simple and clean flutter calendar with ability to slide up/down to show weekly/monthly calendar. Fork of [flutter_clean_calender](https://pub.dev/packages/flutter_clean_calendar)

example/lib/main.dart

import 'dart:math';

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Clean Calendar Demo',
      home: CalendarScreen(),
    );
  }
}

class CalendarScreen extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _CalendarScreenState();
  }
}

class _CalendarScreenState extends State<CalendarScreen> {
  List<NeatCleanCalendarEvent> _todaysEvents = [
    NeatCleanCalendarEvent('Event A',
        startTime: DateTime(DateTime.now().year, DateTime.now().month,
            DateTime.now().day, 10, 0),
        endTime: DateTime(DateTime.now().year, DateTime.now().month,
            DateTime.now().day, 12, 0),
        description: 'A special event',
        color: Colors.blue[700]),
  ];
  final Map<DateTime, List<NeatCleanCalendarEvent>> _events = {
    DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day + 2):
        [
      NeatCleanCalendarEvent('Event B',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 10, 0),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 12, 0),
          color: Colors.orange),
      NeatCleanCalendarEvent('Event C',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.pink),
    ],
    DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day + 3):
        [
      NeatCleanCalendarEvent('Event B',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 10, 0),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 12, 0),
          color: Colors.orange),
      NeatCleanCalendarEvent('Event C',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.pink),
      NeatCleanCalendarEvent('Event D',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.amber),
      NeatCleanCalendarEvent('Event E',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.deepOrange),
      NeatCleanCalendarEvent('Event F',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.green),
      NeatCleanCalendarEvent('Event G',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.indigo),
      NeatCleanCalendarEvent('Event H',
          startTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 14, 30),
          endTime: DateTime(DateTime.now().year, DateTime.now().month,
              DateTime.now().day + 2, 17, 0),
          color: Colors.brown),
    ],
  };

  @override
  void initState() {
    super.initState();
    _events.putIfAbsent(
        DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day),
        () => _todaysEvents);
    // Force selection of today on first load, so that the list of today's events gets shown.
    _handleNewDate(DateTime(
        DateTime.now().year, DateTime.now().month, DateTime.now().day));
  }

  @override
  Widget build(BuildContext context) {
    print(_events.length);
    return Scaffold(
      body: SafeArea(
        child: Calendar(
          startOnMonday: true,
          weekDays: ['Mo', 'Di', 'Mi', 'Do', 'Fr', 'Sa', 'So'],
          events: _events,
          isExpandable: true,
          eventDoneColor: Colors.green,
          selectedColor: Colors.pink,
          todayColor: Colors.blue,
          eventColor: Colors.grey,
          locale: 'de_DE',
          todayButtonText: 'Heute',
          isExpanded: true,
          expandableDateFormat: 'EEEE, dd. MMMM yyyy',
          dayOfWeekStyle: TextStyle(
              color: Colors.black, fontWeight: FontWeight.w800, fontSize: 11),
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          // Add your onPressed code here!
          Random random = Random();
          // Pick a random number in the range [0.0, 1.0)
          double randomDouble = random.nextDouble();
          _todaysEvents.add(NeatCleanCalendarEvent('New Event',
              startTime: DateTime(
                  DateTime.now().year,
                  DateTime.now().month,
                  DateTime.now().day,
                  DateTime.now().hour,
                  DateTime.now().minute),
              endTime: DateTime(
                  DateTime.now().year,
                  DateTime.now().month,
                  DateTime.now().day,
                  DateTime.now().hour,
                  DateTime.now().minute + 15),
              description: 'New event',
              color:
                  Color((randomDouble * 0xFFFFFF).toInt()).withOpacity(1.0)));
          setState(() {
            _events[DateTime(DateTime.now().year, DateTime.now().month,
                DateTime.now().day)] = _todaysEvents;
          });
        },
        child: const Icon(Icons.add),
        backgroundColor: Colors.green,
      ),
    );
  }

  void _handleNewDate(date) {
    print('Date selected: $date');
  }
}