在尝试为 Healthkit 设置观察者查询时，对于很多用户来说，我收到了Authorization not Determined.
经过一番研究后，我发现只有在尝试将数据写入（共享）到 Healthkit 时才会发生这样的错误。根据 Apple HK 文档 - 当尝试读取用户未授予权限的数据时，我根本不应该获取任何数据（没有任何错误），就好像没有新数据一样。
这是我用来设置观察者查询的代码：
class func setObserver(healthKitManager manager: HealthKitManager, forType type: HKSampleType?, withPredicateAfterFetching predicate: NSPredicate?) {
guard type != nil && manager.healthStore != nil else {
return
}
let query = HKObserverQuery.init(sampleType: type!, predicate: nil) { (query, completionHandler, error) in
guard error == nil else {
SimpleEvent(name: "HKObserverQuery failed", param: "type:\(type!.identifier), error: \(error!.localizedDescription)").fire()
return
}
let anchoredQuery = HKAnchoredObjectQuery.init(type: type!, predicate: predicate, anchor: manager.getHealthDataAnchor(forType: type!), limit: HKObjectQueryNoLimit, resultsHandler: { (query, results, deletedObjects, newAnchor, error) in
guard error == nil else {
SimpleEvent(name: "HKAnchoredQuery failed", param: "type:\(type!.identifier), error: \(error!.localizedDescription)").fire()
return
}
\\ Code that saves the HK Data
completionHandler()
})
manager.healthStore!.execute(anchoredQuery)
}
manager.healthStore!.execute(query)
manager.observerQueries.append(query)
}
错误在HKObserverQuery failed事件中被捕获。
正如我所提到的，权限请求不应影响数据读取，但无论如何，这里的代码：
func requestAuthorizationToShareTypesAndReadTypes(withSuccess successBlock: @escaping () -> Void, failure failureBlock: @escaping () -> Void) {
self.healthStore?.requestAuthorization(toShare: writeDataTypes as! Set<HKSampleType>, read: readDataTypes as! Set<HKObjectType>, completion: { (success, error) in
if !success || error != nil {
SimpleEvent.init(name: "HK-requestAuthorization", param: error!.localizedDescription)
NSLog("You didn't allow HealthKit to access these read/write data types. The error was: %@.", error as! NSError);
failureBlock()
return;
}
self.userHaveBeenPromptWithPermissionsScreenAtLeastOnce = true
self.enableBackgroundDelivery()
successBlock()
})
}
这是我启用后台交付的部分
func enableBackgroundDelivery() {
for type in self.readDataTypes! {
if let type = type as? HKSampleType {
self.enableBackgroundDelivery(forSampleType: type)
}
}
}
func enableBackgroundDelivery(forSampleType type:HKSampleType) {
self.healthStore?.enableBackgroundDelivery(for: type, frequency: HKUpdateFrequency.immediate, withCompletion: { (success, error) in
if error != nil {
print(String.init(format: "HK-BackgoundError: error:%@, user: %@, type: %@", error!.localizedDescription, NRManager.shared().username, type.identifier))
}
})
}