flutter_customized_clean_calendar

Description:

flutter customized clean calendar

flutter_customized_clean_calendar #
Simple flutter calendar based on flutter_calendar package.
Thanks to @AppleEducate for his contributions.
You can pull up and down the calendar to show between weekly/monthly calendar.
It shows the number of events for thats specific date.
It shows the already Done events in other color
Breaking Changes #

Introduction of 'CleanCalendarEvent' class. This makes the former syntax of the 'Map' that stores the events incompatible.



Usage #
Embed the 'Calendar' widget in a column. Below the calendar (as the second widget in the Column) place a 'ListView.builder' widget for rendereing the list of events.
Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Container(
child: Calendar(
bgImage: const AssetImage("assets/images/calendar_selected.png"),
startOnMonday: true,
weekDays: const ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
events: _events,
isExpandable: true,
eventDoneColor: Colors.green,
selectedColor: Colors.pink,
todayColor: Colors.blue,
eventColor: Colors.black,
locale: 'en',
todayButtonText: 'Today',
isExpanded: true,
expandableDateFormat: 'EEEE, dd. MMMM yyyy',
dayOfWeekStyle: const TextStyle(
color: Colors.black, fontWeight: FontWeight.w800, fontSize: 11),
),
),
_buildEventList()
],
),

...

/// This function [_buildEventList] constructs the list of events of a selected day. This
/// list is rendered below the week view or the month view.
Widget _buildEventList() {
return Expanded(
child: ListView.builder(
padding: EdgeInsets.all(0.0),
itemBuilder: (BuildContext context, int index) {
final CleanCalendarEvent event = _selectedEvents[index];
final String start =
DateFormat('HH:mm').format(event.startTime).toString();
final String end =
DateFormat('HH:mm').format(event.endTime).toString();
return ListTile(
contentPadding:
EdgeInsets.only(left: 2.0, right: 8.0, top: 2.0, bottom: 2.0),
leading: Container(
width: 10.0,
color: event.color,
),
title: Text(event.summary),
subtitle:
event.description.isNotEmpty ? Text(event.description) : null,
trailing: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [Text(start), Text(end)],
),
onTap: () {},
);
},
itemCount: _selectedEvents.length,
),
);
}
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For more details see the example.
Properties #
/// [onDateSelected] is of type [ValueChanged<DateTime>] and it containes the callback function
/// extecuted when tapping a date
/// [onMonthChanged] is of type [ValueChanged<DateTime>] and it containes the callback function
/// extecuted when changing to another month
/// [onExpandStateChanged] is of type [ValueChanged<bool>] and it contains a callback function
/// executed when the view changes to expanded or to condensed
/// [onRangeSelected] contains a callback function of type [ValueChanged], that gets called on changes
/// of the range (switch to next or previous week or month)
/// [isExpandable] is a [bool]. With this parameter you can control, if the view can expand from week view
/// to month view. Default is [false].
/// [dayBuilder] can contain a [Widget]. If this property is not null (!= null), this widget will get used to
/// render the calenar tiles (so you can customize the view)
/// [hideArrows] is a bool. When set to [true] the arrows to navigate to the next or previous week/month in the
/// top bar well get suppressed. Default is [false].
/// [hideTodayIcon] is a bool. When set to [true] the dispaly of the Today-Icon (button to navigate to today) in the
/// top bar well get suppressed. Default is [false].
/// [hideBottomBar] at the moment has no function. Default is [false].
/// [events] are of type [Map<DateTime, List<CleanCalendarEvent>>]. This data structure containes the events to display
/// [selctedColor] this is the color, applied to the circle on the selcted day
/// [todayColor] this is the color of the date of today
/// [todayButtonText] is a [String]. With this property you can set the caption of the today icon (button to navigate to today).
/// If left empty, the calendar will use the string "Today".
/// [eventColor] lets you optionally specify the color of the event (dot). If the [CleanCaendarEvents] property color is not set, the
/// calendar will use this parameter.
/// [eventDoneColor] with this property you can define the color of "done" events, that is events in the past.
/// [initialDate] is of type [DateTime]. It can contain an optional start date. This is the day, that gets initially selected
/// by the calendar. The default is to not set this parameter. Then the calendar uses [DateTime.now()]
/// [isExpanded] is a bool. If is us set to [true], the calendar gets rendered in month view.
/// [weekDays] contains a [List<String>] defining the names of the week days, so that it is possible to name them according
/// to your current locale.
/// [locale] is a [String]. This setting gets used to format dates according to the current locale.
/// [startOnMonday] is a [bool]. This parameter allows the calendar to determine the first day of the week.
/// [dayOfWeekStyle] is a [TextStyle] for styling the text of the weekday names in the top bar.
/// [bottomBarTextStyle] is a [TextStyle], that sets the style of the text in the bottom bar.
/// [bottomBarArrowColor] can set the [Color] of the arrow to expand/compress the calendar in the bottom bar.
/// [bottomBarColor] sets the [Color] of the bottom bar
/// [expandableDateFormat] defines the formatting of the date in the bottom bar
final ValueChanged<DateTime> onDateSelected;
final ValueChanged<DateTime> onMonthChanged;
final ValueChanged<bool> onExpandStateChanged;
final ValueChanged onRangeSelected;
final bool isExpandable;
final DayBuilder dayBuilder;
final bool hideArrows;
final bool hideTodayIcon;
final Map<DateTime, List<CleanCalendarEvent>> events;
final Color selectedColor;
final Color todayColor;
final String todayButtonText;
final Color eventColor;
final Color eventDoneColor;
final DateTime initialDate;
final bool isExpanded;
final List<String> weekDays;
final String locale;
final bool startOnMonday;
final bool hideBottomBar;
final TextStyle dayOfWeekStyle;
final TextStyle bottomBarTextStyle;
final Color bottomBarArrowColor;
final Color bottomBarColor;
final String expandableDateFormat;
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Sample event data #
The syntax of the event map changed due to the introduction of the 'CleanCalendarEvent' class.
final Map<DateTime, List<CleanCalendarEvent>> _events = {
DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day): [
CleanCalendarEvent('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]),
],
DateTime(DateTime.now().year, DateTime.now().month, DateTime.now().day + 2):
[
CleanCalendarEvent('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),
CleanCalendarEvent('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),
],
};

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Acknowledgments #
Special thanks to @rwbr for adding the new event class to give more flexibility tot he project