'How to does Apple Reminders App/ iOS version Google Keep able to implement recurring reminder with complex rule?
By using UNCalendarNotificationTrigger and UNNotificationRequest, it is possible to create the following recurring reminder
Show reminder every day 8:00 am starting from now
But, as per my understanding, it is not possible to create the following recurring reminder, with future start date
Show reminder every day 8:00 am starting from 17 July 2023
Or with an end date
Show reminder every day 8:00 am until 17 July 2023
For a while, I thought to implement recurring reminders with above recurring rules, a server side reminder time computation + server side push notification are required.
However, I have tested both Apple Reminders App & iOS version Google Keep in airplane mode.
Apple Reminders App
iOS version Google Keep
Both of them are able to execute such reminders, even without Internet connection.
Do you have idea, how they are able to achieve such local notification with complex recurring rule? Thank you.
Sources
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Source: Stack Overflow
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