Unable to get Reminders lists without CALENDAR permission

[hkaju]

🐛 Bug Report

Environment

  Expo CLI 3.17.18 environment info:
    System:
      OS: macOS 10.15.4
      Shell: 5.7.1 - /bin/zsh
    Binaries:
      Node: 13.8.0 - /usr/local/bin/node
      Yarn: 1.22.0 - /usr/local/bin/yarn
      npm: 6.13.7 - /usr/local/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    IDEs:
      Xcode: 11.4/11E146 - /usr/bin/xcodebuild
    npmPackages:
      expo: ~36.0.0 => 36.0.2 
      react: ~16.9.0 => 16.9.0 
      react-native: https://github.com/expo/react-native/archive/sdk-36.0.0.tar.gz => 0.61.4 
    npmGlobalPackages:
      expo-cli: 3.17.18

Steps to Reproduce

Call Calendar.getCalendarsAsync(Calendar.EntityTypes.REMINDER) with Permissions.REMINDERS having been granted but without Permissions.CALENDAR on iOS.

Expected Behavior

Should be able to retrieve Reminders lists with only Permissions.REMINDERS.

Actual Behavior

[Unhandled promise rejection: Error: CALENDAR permission is required to do this operation.]

Reproducible Demo

https://snack.expo.io/EZmpfVyTBV

[cruzach]

It seems like from the native iOS documentation that you need both CALENDAR and REMINDERS permission - https://developer.apple.com/documentation/eventkit/creating_events_and_reminders?language=objc

[hkaju]

From what I gather, all of the EventKit documentation seems to imply that you can access entity types separately + there are apps out there that are able to operate with Reminders without having calendar permissions (e.g. https://twitter.com/smartgroceryapp).

I think the issue might be that the getCalendarsAsync method takes in an entity type but always checks for calendar permissions regardless of the entity type requested (see

expo/packages/expo-calendar/ios/EXCalendar/EXCalendar.m

Line 57 in 40eee44

if (![self _checkCalendarPermissions:reject]) {

).

[cruzach]

Ah okay, thanks for the extra info