HKObserverQuery失败，授权未确定

Question

当试图为Healthkit设置一个观察者查询时，对于许多用户来说，我得到了一个Authorization not Determined错误。

经过一段时间的研究后，我发现只有当试图向Healthkit写入(共享)数据时，才会出现这样的错误。根据Apple文档-当试图读取用户没有授予权限的数据时，我不应该获得任何数据(没有任何错误)，就好像没有新的数据一样。

下面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)
}

该错误在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，下面是代码：

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()
    })
}

下面是我能提供背景信息的部分

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))
        }

    })
}

Answer 1

从HealthKit读取数据需要授权。如果您收到的错误指示授权未确定，则表示未提示用户授权您的应用程序读取或写入您正在查询的类型的示例。

Answer 2

我通过添加以下内容解决了这一问题：

HKObjectType.activitySummaryType()

HKHealthStore requestAuthorization()的读取类型