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In the Flutter date range picker, you can customize the month cells by using the `specialDates`, `blackoutDates`, and `showTrailingAndLeadingDates` properties. Step 1:Inside the state, set the default color values for the weekend days, special dates, current date, blackout dates, leading and trailing datesand initialize the special and blackout dates on initState(). late List<DateTime> _blackoutDates;
late List<DateTime> _specialDates;
final Color weekEndColor = Color(0xFF0e9aa7), specialDatesColor = Color(0xFFf6cd61), todayColor = Color(0xFFff6f69), leadingTrailingDatesColor = Color(0xFF88d8b0), blackoutDatesColor = Colors.black;
@overridevoid initState() {
_blackoutDates = _getBlackoutDates();
_specialDates = _getSpecialDates();
super.initState();}
Step 2:Place the calendar inside the body of the Scaffold widget. Using the `TextStyle` and `BoxDecoration` widget you can customize the dates with shapes and colors. In the same way, you can also customize the blackout dates. body: Card( margin: const EdgeInsets.fromLTRB(40, 150, 40, 150), child: SfDateRangePicker( view: DateRangePickerView.month, monthViewSettings: DateRangePickerMonthViewSettings( specialDates: _specialDates, showTrailingAndLeadingDates: true, blackoutDates: _blackoutDates), selectionColor: Color(0xFFf8dbdff), monthCellStyle: DateRangePickerMonthCellStyle( blackoutDateTextStyle: TextStyle( color: blackoutDatesColor, decoration: TextDecoration.lineThrough), specialDatesDecoration: BoxDecoration( shape: BoxShape.circle, border: Border.all(width: 1), color: specialDatesColor), specialDatesTextStyle: TextStyle(color: Colors.black), cellDecoration: BoxDecoration(shape: BoxShape.circle), todayTextStyle: TextStyle(color: Colors.white), todayCellDecoration: BoxDecoration(shape: BoxShape.circle, color: todayColor), weekendDatesDecoration: BoxDecoration( color: weekEndColor, border: Border.all(width: 1), shape: BoxShape.circle), trailingDatesDecoration: BoxDecoration( shape: BoxShape.rectangle, color: leadingTrailingDatesColor), leadingDatesDecoration: BoxDecoration( shape: BoxShape.rectangle, color: leadingTrailingDatesColor)), todayHighlightColor: Colors.orange, ), ));
Screenshot:
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