How to add the appointments using the onTap callback in the Flutter Calendar?

In the Flutter Event Calendar, you can add the appointments when tapped cells through the onTap callback of the Calendar.

In initState() set the default values.

CalendarDataSource? _dataSource;
 
@override
void initState() {
  _dataSource = _getDataSource();
  super.initState();
}

Using onTap callback of the Flutter calendar, you can add appointments in the tapped cell.

void calendarTapped(CalendarTapDetails calendarTapDetails) {
  Appointment app = Appointment(
      startTime: calendarTapDetails.date!,
      endTime: calendarTapDetails.date!.add(Duration(hours: 1)),
      subject: 'Tapped appointment',
      color: Colors.greenAccent);
  _dataSource!.appointments!.add(app);
    _dataSource.notifyListeners(
        CalendarDataSourceAction.add, <Appointment>[app]);
}

View sample in GitHub

Conclusion

I hope you enjoyed learning about how to add the appointments using the onTap 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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