How to clear the appointments in month agenda view using onViewChange callback in the Flutter Calendar?

In the Flutter Event Calendar, you can clear the selected date appointments using onViewChanged callback of the calendar.

STEP 1: Inside the state initialize the calendar controller.

final CalendarController _calendarController = CalendarController();

STEP 2:

In onViewChanged callback set the selected date value as null for clearing the selected date appointments.

void calendarViewChanged(ViewChangedDetails viewChangedDetails) {
  SchedulerBinding.instance!.addPostFrameCallback((timeStamp) {
    _calendarController.selectedDate = null;
  });
}

STEP 3: Assign _calendarController to controller property of the calendar.

child: SfCalendar(
  view: CalendarView.month,
  controller: _calendarController,
  dataSource: _getDataSource(),
  onViewChanged: calendarViewChanged,
  monthViewSettings: MonthViewSettings(showAgenda: true),
),

View sample in GitHub

Conclusion

Hope you enjoyed learning about how to clear the appointments in month agenda view using onViewChange callback in the Flutter Calendar.

You can refer to our Flutter Calendar feature tour page to learn about its other groundbreaking feature representations. You can explore our documentation to understand how to present and manipulate data.

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