使用EventKit创建提醒时出错

Question

I have an app that uses EventKit. I ask for permission for reminders and then I have code that creates a reminder. I sometimes get this error message in my logs when running the app in the simulator:

Error getting changed object IDs since timestamp 450512391.766620 from daemon: Error Domain=EKCADErrorDomain Code=1013 "The operation couldn't be completed. (EKCADErrorDomain error 1013.)" Error getting default calendar for new reminders: Error Domain=EKCADErrorDomain Code=1013 "The operation couldn't be completed. (EKCADErrorDomain error 1013.)"

The first error comes from the authorization step and second comes from these lines:

EKReminder *reminder = [EKReminder reminderWithEventStore:eventStore]; reminder.calendar = eventStore.defaultCalendarForNewReminders;

This happens after requestAccessToEntityType:completion: returns granted permission for reminders, so there is definitely permission.

The weird thing is, once the issue happens if I just restart the app everything is fine. If I reset the simulator and rerun the app this only sometimes will happen again.

Answer 1

This seems to only happen with the following workflow:

• Reset All Contact and Settings Menu Option.
• Quit simulator right away when it comes back up.
• Run your app which immediately asks for Calendar info on the just-reset, never-opened-before simulator.

I suspect the reason is because when you reset the entire simulator, it needs a few seconds to initialize all the demo data such as the contacts and calendar events when it "boots" for the first time.

If you wait 10+ seconds after reset, THEN run your app, you do not get this warning.

Another workaround is to use the "Reset Privacy Settings" in iOS Simulator Settings App (General > Reset) during testing of calendar permission testing.