HealthKit.requestAuthorization works once only about react-native-healthkit

[robertherber]

I'm fairly certain what you're describing is working as intended (by Apple that is). A few things that might help:

• Apple only lets apps present the dialog once per type of data. So it's probably a good idea to prepare the user before presenting the dialog.
• There is no way to tell if a user denied the app access to reading data - you will simply receive no data.
• isHealthDataAvailable is for indicating whether the device supports health data, as per Apples docs. I guess it makes most sense to call this before anything else.

[pratikdhody]

I'm fairly certain what you're describing is working as intended (by Apple that is). A few things that might help:

• Apple only lets apps present the dialog once per type of data. So it's probably a good idea to prepare the user before presenting the dialog.
• There is no way to tell if a user denied the app access to reading data - you will simply receive no data.
• isHealthDataAvailable is for indicating whether the device supports health data, as per Apples docs

Thanks @robertherber. Regardless of the scenario I mentioned above, I'm also finding also that if the user granted access in current version of out app and then if we then released a newer version of the app then HealthKit.authorizationStatusFor(HKCategoryTypeIdentifier.sleepAnalysis) is false and so when we try and present the modal again, the modal doesn't show.

The only workaround that works is that we need to ask users to uninstall the app and then re-open and then the modal appears.

[robertherber]

@pratikdhody Yes, this is the same behaviour for any iOS app regarding showing the permission UI. You can only show it once per type of health data, that's it.

As for the authorizationStatusFor there is some discussion going on in #61 on whether it's reporting the correct value currently. I haven't had time to dig into it yet.

I'd recommend using getRequestStatusForAuthorization instead since it directly indicates whether you can/should ask the user for permissions (shouldRequest) or if you should just go ahead (i.e. you have already presented the UI). This is all that is exposed by Apple, there is no way to know what the user responded.