ios - 如何使用 HKObserverquery 读取 iOS Healthkit 血压(收缩压、舒张压)？

通过使用以下代码，当数据在 healthkit 中可用时，我可以使用观察者查询自动读取心率数据。

HKSampleType *readGlucoseType;

        readGlucoseType = [HKSampleType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];


    query = [[HKObserverQuery alloc]initWithSampleType:readGlucoseType
                                             predicate:nil
                                         updateHandler:^(HKObserverQuery *query, HKObserverQueryCompletionHandler completionHandler, NSError *error)
             {

                 if (!error)
                 {
                     [self handleHKQueryResponse:query completionHandler:completionHandler errorCode:error];
                 }
                 else
                 {
                     NSLog(@"Observerquery Error");

                     if (completionHandler)
                     {
                         completionHandler();
                     }
                 }
             }];

    [self.healthStore executeQuery:query];

我需要如何使用观察者查询从健康包中读取血压数据？

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Best Answer-推荐答案

更新了 Xcode 9.2 的答案:

func readSampleByBloodPressure()
    {
         guard let type = HKQuantityType.correlationType(forIdentifier: HKCorrelationTypeIdentifier.bloodPressure),
        let systolicType = HKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier.bloodPressureSystolic),
        let diastolicType = HKObjectType.quantityType(forIdentifier: HKQuantityTypeIdentifier.bloodPressureDiastolic) else {

            return
    }

    let sampleQuery = HKSampleQuery(sampleType: type, predicate: nil, limit: 0, sortDescriptors: nil) { (sampleQuery, results, error) in
        if let dataList = results as? [HKCorrelation] {
            for data in dataList
            {
                if let data1 = data.objects(for: systolicType).first as? HKQuantitySample,
                    let data2 = data.objects(for: diastolicType).first as? HKQuantitySample {

                    let value1 = data1.quantity.doubleValue(for: HKUnit.millimeterOfMercury())
                    let value2 = data2.quantity.doubleValue(for: HKUnit.millimeterOfMercury())

                    print("\(value1) / \(value2)")
                }
            }
        }
    }
    healthStore.execute(sampleQuery)
    }

关于ios - 如何使用 HKObserverquery 读取 iOS Healthkit 血压(收缩压、舒张压)？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29073342/