Constants indicating the authorization status for a particular data type.


This status indicates whether the user has authorized your app to save data of the given type.

To help maintain the privacy of sensitive health data, HealthKit does not tell you when the user denies your app permission to query data. Instead, it simply appears as if HealthKit does not have any data matching your query. Your app will receive only the data that it has written to HealthKit. Data from other sources remains hidden from your app. For more information on privacy in HealthKit, see HealthKit.



case notDetermined

The user has not yet chosen to authorize access to the specified data type.

case sharingDenied

The user has explicitly denied your app permission to save data of the specified type.

case sharingAuthorized

The user has explicitly authorized your app to save data of the specified type.

See Also

Other HealthKit Constants

Health Kit Error Domain

Constant for the HealthKit error domain.

enum HKError.Code

Error codes that may be returned when calling HealthKit methods.

enum HKUpdateFrequency

Constants that determine how often the system will launch your app in response to changes to HealthKit data. For more information, see HKObserverQuery.

enum HKFitzpatrickSkinType

Categories representing the user’s skin type based on the Fitzpatrick scale. The Fitzpatrick scale is a numerical classification for skin color based on the skins response to sun exposure in terms of the degree of burning and tanning.

enum HKCategoryValueSleepAnalysis

Categories used when analyzing sleep samples.

enum HKCategoryValueAppleStandHour

Categories used to indicate whether the user stood during the sample’s duration.

enum HKCategoryValueCervicalMucusQuality

Categories used to represent the user’s cervical mucus quality. These values are ordered from least-fertile (Dry) to most-fertile (EggWhite).

enum HKCategoryValueOvulationTestResult

Categories used to represent the result of an ovulation home test.

enum HKCategoryValueMenstrualFlow

Constants indicating the amount of menstrual flow for a given sample.

enum HKCategoryValue

Miscellaneous category values.

enum HKBiologicalSex

Constants indicating the user’s sex. A person's sex is a combination of bodily characteristics including: chromosomes, hormones, internal and external reproductive organs, and secondary sex characteristics.

enum HKBloodType

Constants indicating the user’s blood type.

enum HKWheelchairUse

Constants indicating the user’s wheelchair use.