HealthKit requestAuthorization(toShare:, read, completion: ) ：有没有办法知道它是否至少被提示过一次？
HealthKit requestAuthorization(toShare:, read, completion: ) : is there are way to know whether it was promped at least once?
我目前正在使用 HealthKit，我想知道：是否有可能知道之前是否询问过 requestAuthorization？
根据文档，似乎不是。您可以询问特定 HKObjectType 的授权状态，但这只会告诉您是否可以 保存 该类型的数据。您无法判断是否已授予 read 访问权限。根据 docs:
To help prevent possible leaks of sensitive health information, your app cannot determine whether or not a user has granted permission to read data.
您可以调用 requestAuthorization repeatedly，只有当用户之前没有授予访问 HKObjectType 请求的权限时才会提示用户：
If the user has already chosen to grant or prohibit access to all of the types specified, the completion is called without prompting the user.
我目前正在使用 HealthKit，我想知道：是否有可能知道之前是否询问过 requestAuthorization？
根据文档，似乎不是。您可以询问特定 HKObjectType 的授权状态，但这只会告诉您是否可以 保存 该类型的数据。您无法判断是否已授予 read 访问权限。根据 docs:
To help prevent possible leaks of sensitive health information, your app cannot determine whether or not a user has granted permission to read data.
您可以调用 requestAuthorization repeatedly，只有当用户之前没有授予访问 HKObjectType 请求的权限时才会提示用户：
If the user has already chosen to grant or prohibit access to all of the types specified, the completion is called without prompting the user.