Permissions.askAsync never resolves on iOS Standalone app

With out recent app release, we have found an apparent bug in Expo in the standalone app which caused Apple to reject the submission. It turns out that the Pemissions.askAsync is often not resolving the promise when the user clicks “Allow” or “Don’t Allow” on the native dialog popup.

We were able to resolve this in two ways:

• Change the screen automatically in the background and don’t wait for a resolved response.
• Use a timeout around the permissions dialog (calling Permissions.getAsync to attempt to get the response).

Ensure the promise resolved with a timeout:

Note: You should probably not let the UI wait for this response.

    askNotificationPermissions_withTimeout = () => {
        // NOTE: Permissions.askAsync seems to never resolve sometimes, so using a timeout to check status

        return new Promise((resolve, reject) => {
            const timeoutId = setTimeout(async () => {
                const { status } = await Permissions.getAsync(
                    Permissions.NOTIFICATIONS
                );
                resolve(status === 'granted');
            }, 5000);

            const promise = Permissions.askAsync(
                Permissions.NOTIFICATIONS
            );

            promise.then(r => {
                clearTimeout(timeoutId);

                const { status } = r;
                resolve(status === 'granted');
            });
        });

    };

Context

• Expo SDK 24.0.0
• iOS Standalone

[ramshamushtaq]

Hi, we just ran into the same issue with the latest version of Expo. Here are the steps to reproduce the issue:

1. Ask the user for notifications permissions using askAsync
2. Allow notification permissions
3. Go to Expo settings and turn off notifications permissions
4. Ask the user for notifications permissions again using askAsync

At that point, the app hangs waiting for the promise askAsync returns to resolve.

[joraniedemagit]

@brentvatne @bbarthec just to note: this issue was re-introduced in 'expo-permissions' (at least 6.0.0).