Is it possible to implement this functionalities synchronously with Google Calendar, and it will be reflected on Google Calendar immediately?
Create a new calendar event in the chosen calendar Update an existing calendar event, by UID, in the chosen calendar Delete a calendar event, by UID, on the chosen calendar The above functionality should work on Android and iOS
Actually, I tried syncfusion_flutter_calendar, but I think it is working as a view only.
You can use their API:
https://developers.google.com/calendar/api/guides/overview
Also, it is not free.