streak_calendar

Description:

streak calendar

Word from creator #
Hello👋, Clean Calendar is in the early stages of development, but rest assured, it will be well-maintained for a long time. Also, if you have any questions or suggestions, contact me via GitHub issues, email, discord, or any of the ways listed on my GitHub profile.
Yes, giving the package a 👍(Pub) or ⭐(Github) will encourage me to work on it more.
Package description #
Get ready to enhance your Flutter app with this fantastic calendar package! With its simple yet elegant design, you can create a fully customized calendar that suits your needs. It provides a customizable month view and the ability to highlight dates with streaks. It is just the beginning, and we will add more features.
Features #

Display dates as streaks



Monthly calendar




Dark mode
Light mode










Weekly calendar




Dark mode
Light mode









Getting started #

In pubspec.yaml, add this dependency:

streak_calendar:
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Add this package to your project:

import 'package:streak_calendar/src/streak_calendar.dart';
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Basic Usage #
class Home extends StatelessWidget {
const Home({Key? key}) : super(key: key);

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
elevation: 2,
title: const Text("Calendar"),
),
body: CleanCalendar(
datesForStreaks: [
DateTime(2022, 8, 5),
DateTime(2022, 8, 6),
DateTime(2022, 8, 7),
DateTime(2022, 8, 9),
DateTime(2022, 8, 10),
DateTime(2022, 8, 11),
DateTime(2022, 8, 13),
DateTime(2022, 8, 20),
DateTime(2022, 8, 21),
DateTime(2022, 8, 23),
DateTime(2022, 8, 24),
],
),
);
}
}
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Customisations #

Customise date boundary behaviour and tap behaviour




CleanCalendar( )copied to clipboard
CleanCalendar( // To allow date boundary to shrink. enableDenseViewForDates: true, // To allow date tap splash to shrink. enableDenseSplashForDates: true,)copied to clipboard









Note: This dense mode could lead to overflow if the available width to calendar is smaller than 280px so it is advised to disable them in smaller space than 280px.

Disable and hide different types of dates




CleanCalendar( )copied to clipboard
CleanCalendar( leadingTrailingDatesProperties: DatesProperties( // To disable taps on leading and trailing dates. disable: true, // To hide leading and trailing dates. hide: true, ),)copied to clipboard









Also, Available for other types of dates : -



Selected Dates
Visible Month Dates
Current Date
Streak Dates




CleanCalendar( selectedDatesProperties: DatesProperties( // To disable taps on selected dates. disable: true, // To hide selected dates. hide: true, ),)copied to clipboard
CleanCalendar( generalDatesProperties: DatesProperties( // To disable taps on leading and trailing dates. disable: true, // To hide leading and trailing dates. hide: true, ),)copied to clipboard
CleanCalendar( currentDateProperties: DatesProperties( // To disable taps on current date. disable: true, // To hide current date. hide: true, ),)copied to clipboard
CleanCalendar( streakDatesProperties: DatesProperties( // To disable taps on streak dates. disable: true, // To hide streak dates. hide: true, ),)copied to clipboard




Customise dates look by changing its properties




CleanCalendar( );copied to clipboard
CleanCalendar( datesForStreaks: [ DateTime(2022, 8, 5), DateTime(2022, 8, 6), ... ], currentDateProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.lightGreen.shade100, datesBorderColor: Colors.green, datesTextColor: Colors.black, ), ), generalDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.lightGreen.shade100, datesBorderColor: Colors.blue.shade100, datesTextColor: Colors.black, ), ), streakDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.green, datesBorderColor: Colors.blue, datesTextColor: Colors.white, ), ), leadingTrailingDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, ), ),)copied to clipboard
CleanCalendar( enableDenseViewForDates: true, datesForStreaks: [ DateTime(2022, 8, 5), DateTime(2022, 8, 6), ... ], currentDateProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.lightGreen.shade100, datesBorderColor: Colors.green, datesTextColor: Colors.black, ), ), generalDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.lightGreen.shade100, datesBorderColor: Colors.blue.shade100, datesTextColor: Colors.black, ), ), streakDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, datesBackgroundColor: Colors.green, datesBorderColor: Colors.blue, datesTextColor: Colors.white, ), ), leadingTrailingDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, ), ),)copied to clipboard











Customise weekdays header by changing its properties




CleanCalendar( weekdaysProperties: WeekdaysProperties( generalWeekdaysDecoration: WeekdaysDecoration(weekdayTextColor: Colors.red), sundayDecoration: WeekdaysDecoration( weekdayTextColor: Colors.green, weekdayTextStyle: Theme.of(context).textTheme.headlineMedium), saturdayDecoration: WeekdaysDecoration( weekdayTextColor: Colors.green, weekdayTextStyle: Theme.of(context).textTheme.headlineMedium), ),)copied to clipboard









Customise navigator header by changing its properties




CleanCalendar( headerProperties: HeaderProperties( monthYearDecoration: MonthYearDecoration( monthYearTextColor: Colors.amber, monthYearTextStyle: Theme.of(context).textTheme.labelMedium, ), navigatorDecoration: NavigatorDecoration( navigatorResetButtonIcon: const Icon( Icons.restart_alt, color: Colors.amber, ), navigateLeftButtonIcon: const Icon( Icons.arrow_circle_left, color: Colors.amber, ), navigateRightButtonIcon: const Icon( Icons.arrow_circle_right, color: Colors.amber, ), ), ),)copied to clipboard








Date Selection #

Multiple date selection with customization




CleanCalendar( enableDenseViewForDates: true, enableDenseSplashForDates: true, datesForStreaks: [ DateTime(2022, 8, 5), DateTime(2022, 8, 6), ... ], // Enabling selecting single or multiple dates. Defaults to disable selection. dateSelectionMode: DatePickerSelectionMode.singleOrMultiple, // Listening to selected dates. onSelectedDates: (List<DateTime> value) { // If selected date picked again then removing it from selected dates. if (selectedDates.contains(value.first)) { selectedDates.remove(value.first); } else { // If unselected date picked then adding it to selected dates. selectedDates.add(value.first); } // setState to update the calendar with new selected dates. setState(() {}); }, // Providing calendar the dates to select in ui. selectedDates: selectedDates, // Customizing selected date. selectedDatesProperties: DatesProperties( datesDecoration: DatesDecoration( datesBorderRadius: 1000, ), ),)copied to clipboard










Single date selection
For single date selection modify the above example code onSelectedDates logic to store only single latest date as selected.


Range, multiple ranges (coming soon)


Changing calendar view type #
Currently mothly and weekly views are added. You can change them as shown below:
CleanCalendar(
// Setting DatePickerCalendarView.weekView for weekly view
datePickerCalendarView: DatePickerCalendarView.weekView,
)
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Note: datePickerCalendarView defaults to DatePickerCalendarView.monthView.
Changing calendar start weekday #
You can change the claendar start weekday as shown below:
CleanCalendar(
// Setting start weekday
startWeekday: WeekDay.monday,
)
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Note: startWeekday defaults to WeekDay.sunday.
Changing weekday and month symbols #
You can change the claendar months and weekdays symbols as shown below:
CleanCalendar(
// Setting custom weekday symbols
weekdaysSymbol: const Weekdays(sunday: "s", monday: "m", tuesday: "t", wednesday: "w", thursday: "t", friday: "f", saturday: "s"),
// Setting custom month symbols
monthsSymbol: const Months(january: "Jan", february: "Feb", march: "Mar", april: "Apr", may: "May", june: "Jun", july: "Jul", august: "Aug", september: "Sep", october: "Oct", november: "Nov", december: "Dec"),
)
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Note: weekdaysSymbol defaults to Mo, Tu, We, Th, Fr, Sa, Su from monday to sunday and monthsSymbol defaults to January, February, March, April, May, June, July, August, September, October, November, December.
Accessing selected dates #
To access selected dates use the onSelectedDates callback but keep in mind that this callback always provides a list of dates as shown below:
CleanCalendar(
...
onSelectedDates: (List<DateTime> selectedDates) {
// Called every time dates are selected or deselected.
print(selectedDates);
},
)
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Note: Even for single selection mode it provides a list with just one date and for multiple selection it provides a list with multiple dates.
Providing pre-selected dates #
You can provide pre-selected dates by providing a list of dates to selectedDates as shown below:
CleanCalendar(
...
selectedDates: [
DateTime(2022, 8, 6),
DateTime(2022, 8, 9),
DateTime(2022, 8, 11),
],
)
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Note: Even with selection mode set to single or disable it will still show the provided pre-selected dates as selected. And I think is the correct behavious as sometimes we might want to show selected dates while also preventing users from interacting with them.
Providing start and end dates #
You can provide start and end dates for calendar view as shown below:
CleanCalendar(
...
// Setting start date of calendar.
startDateOfCalendar: DateTime(2022,6,5),

// Setting end date of calendar.
endDateOfCalendar: DateTime(2022,10,15),
)
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Note: startDateOfCalendar defaults to DateTime.utc(0000, 1, 1) and endDateOfCalendar defaults to DateTime.utc(9999, 1, 1).
Providing initial month view for calendar #
You can provide initial month view for calendar by providing date of that month as shown below:
CleanCalendar(
...
// Setting initial month view of calendar.
initialViewMonthDateTime: DateTime(2022,9,5),
)
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Note: initialViewMonthDateTime defaults to current date and if current is not between startDateOfCalendar and endDateOfCalendar then defaults to start date..
Providing current date for calendar #
You can provide current date for calendar as shown below:
CleanCalendar(
...
// Setting current date of calendar.
currentDateOfCalendar: DateTime(2022,9,5),
)
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Note: currentDateOfCalendar defaults to DateTime.now().
Listening for calendar view week or month change #
You can listen and get the current calendar view date on calendar view change. Useful in case you want to change your ui acording to the dates visible to user.
CleanCalendar(
...
onCalendarViewDate: (DateTime calendarViewDate) {
// Called every time view is changed like scrolled etc.
print(calendarViewDate);
},
)
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Note: For now onCalendarViewDate will only provide the view starting date. Later I may can add an option to get all dates of current view depending on users request. Also, onCalendarViewDate is called only on change of view like scroll, etc and will not be called on the creation of calendar as at thst time we already know the date.
Additional information #
Support is surely planned for these:


Complete documentation.


Option to disable user interactions on whole view, past dates, and dates after-before end-start date. (🐇)


More customization and premade templates for calendar. (🐢)


More calendar view types. (🐢)


Date selection options such as range, and multiple range selections. (🐢)


A calendar option for choosing a view by year, month, or day. (🐢)


Support for dates to be displayed in events style. (🐢)


Dry mode, which optimizes performance for low-end devices by removing or substituting heavy animations and widgets. (🐢)


And, if I'm forgetting something crucial/important/necessary then please let me know.