[iOS] User presses while using, getBackgroundPermissionsAsync canAskAgain is true (should be false)

Summary

In my project I am using canAskAgain to determine whether or not to present the system permission dialog if its true, or a link to open Settings if it’s false. This means that if canAskAgain is lying about being TRUE, then the user can get stuck on a screen that can’t present the modal from requestBackgroundPermissionsAsync.

Reproduction steps

1. Run Location.requestBackgroundPermissionsAsync() and grant “While using”
2. Log the result of Location.getBackgroundPermissionsAsync():

Result:

{"canAskAgain": true, "expires": "never", "granted": false, "status": "undetermined"}

Managed or bare workflow? If you have ios/ or android/ directories in your project, the answer is bare!

bare

What platform(s) does this occur on?

iOS

SDK Version (managed workflow only)

No response

Environment

Expo CLI 4.1.6 environment info: System: OS: macOS 11.4 Shell: 5.8 - /bin/zsh Binaries: Node: 16.4.0 - /opt/homebrew/bin/node Yarn: 1.22.10 - /opt/homebrew/Cellar/node/16.0.0_1/bin/yarn npm: 7.3.0 - /usr/local/bin/npm Watchman: 2021.06.07.00 - /opt/homebrew/bin/watchman Managers: CocoaPods: 1.10.1 - /usr/local/bin/pod SDKs: iOS SDK: Platforms: iOS 14.5, DriverKit 20.4, macOS 11.3, tvOS 14.5, watchOS 7.4 Android SDK: API Levels: 28, 29, 30 Build Tools: 28.0.3, 29.0.2, 30.0.2, 30.0.3 System Images: android-29 | Google APIs Intel x86 Atom_64, android-30 | Google APIs Intel x86 Atom IDEs: Android Studio: 4.2 AI-202.7660.26.42.7351085 Xcode: 12.5.1/12E507 - /usr/bin/xcodebuild npmPackages: @expo/webpack-config: ^0.12.78 => 0.12.81 expo: ^41.0.0 => 41.0.1 react: 16.13.1 => 16.13.1 react-native: 0.63.4 => 0.63.4 Expo Workflow: bare

Reproducible demo or steps to reproduce from a blank project

Reproduction steps

1. Run Location.requestBackgroundPermissionsAsync() and grant “While using”
2. Log the result of Location.getBackgroundPermissionsAsync():

Result:

{"canAskAgain": true, "expires": "never", "granted": false, "status": "undetermined"}

[jamesloper]

Issue is still legit. I’ve made a workaround that is a “lie detector” which I can post below in case it helps anyone. Taken out of context though, so it’s very hard to parse through!

const locationPermission = new PermissionCapability({
	type: 'LOCATION',
	askAsync: Platform.select({
		'ios': Location.requestBackgroundPermissionsAsync,
		'android': Location.requestForegroundPermissionsAsync,
	}),
	checkAsync: async () => {
		const perms = await Location.getBackgroundPermissionsAsync();
		const res = transformExpoPerms(perms);

		if (res.isGranted) {
			res.canAskAgain = false;
			const isPrecise = await isLocationPreciseAsync();
			if (!isPrecise) res.isGranted = false;

			// Check for iOS obtuse design, lying that we have always when we don't
			if (!Storage.get('lieDetected') && locationPermission.status.isUndetermined && res.isGranted) {
				Storage.set('lieDetected', true);
				res.isGranted = false;
			}
		} else {
			const basicPerms = await Location.getForegroundPermissionsAsync(); // another lie detector
			if (basicPerms.granted) res.canAskAgain = false;
		}

		if (res.isGranted) Storage.set('locationPermissionSuccess', true);
		return res;
	},
});

  Expo CLI 5.0.3 environment info:
    System:
      OS: macOS 12.1
      Shell: 5.8 - /bin/zsh
    Binaries:
      Node: 17.2.0 - /opt/homebrew/bin/node
      Yarn: 1.22.17 - /opt/homebrew/bin/yarn
      npm: 8.1.4 - /opt/homebrew/bin/npm
      Watchman: 2022.01.03.00 - /opt/homebrew/bin/watchman
    Managers:
      CocoaPods: 1.11.2 - /usr/local/bin/pod
    SDKs:
      iOS SDK:
        Platforms: DriverKit 21.2, iOS 15.2, macOS 12.1, tvOS 15.2, watchOS 8.3
    IDEs:
      Android Studio: 2020.3 AI-203.7717.56.2031.7935034
      Xcode: 13.2.1/13C100 - /usr/bin/xcodebuild
    npmPackages:
      @expo/webpack-config: ^0.16.16 => 0.16.16 
      babel-preset-expo: 9.0.2 => 9.0.2 
      expo: ^43.0.0 => 43.0.5 
      react: 17.0.2 => 17.0.2 
      react-native: 0.64.3 => 0.64.3 
    npmGlobalPackages:
      expo-cli: 5.0.3
    Expo Workflow: bare

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