为 HKCategoryTypeIdentifierSleepAnalysis 查询 HealthKit

Question

我已经构建了一个导入睡眠样本的方法，但我无法将其设为 return 正确的睡眠时间值。

查询睡眠数据的方法如下：

func updateHealthCategories() {

    let categoryType = HKObjectType.categoryTypeForIdentifier(HKCategoryTypeIdentifierSleepAnalysis)

    let start = NSDate(dateString:"2015-11-04")
    let end = NSDate(dateString:"2015-11-05")

    let categorySample = HKCategorySample(type: categoryType!,
        value: HKCategoryValueSleepAnalysis.Asleep.rawValue,
        startDate: start,
        endDate: end)

    self.hoursSleep = Double(categorySample.value)

    print(categorySample.value)
}

日期格式如下：

extension NSDate
{
    convenience
    init(dateString:String) {
        let dateStringFormatter = NSDateFormatter()
        dateStringFormatter.dateFormat = "yyyy-MM-dd"
        dateStringFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
        let d = dateStringFormatter.dateFromString(dateString)!
        self.init(timeInterval:0, sinceDate:d)
    }
}

我正在调用 11 月 4 日至 5 日的数据，其中包含以下数据：

但是，categorySample.value returns 1 而不是 3.

Answer 1

您访问的值是类别样本值，HKCategoryType，而不是睡眠小时数。

HKCategoryTypeIdentifierSleepAnalysis

的定义

typedef enum : NSInteger {
   HKCategoryValueSleepAnalysisInBed,
   HKCategoryValueSleepAnalysisAsleep,
} HKCategoryValueSleepAnalysis;

定义两个可能的值，0 或 1，其中 1 的值与 HKCategoryValueSleepAnalysisAsleep.

匹配

获得睡眠时间需要设置 HKSampleQuery。

代码看起来像这样：

if let sleepType = HKObjectType.categoryTypeForIdentifier(HKCategoryTypeIdentifierSleepAnalysis) {

    let predicate = HKQuery.predicateForSamplesWithStartDate(startDate, endDate: endDate, options: .None)
    let sortDescriptor = NSSortDescriptor(key: HKSampleSortIdentifierEndDate, ascending: false)
    let query = HKSampleQuery(sampleType: sleepType, predicate: predicate, limit: 30, sortDescriptors: [sortDescriptor]) { (query, tmpResult, error) -> Void in                  
        if let result = tmpResult {
            for item in result {
                if let sample = item as? HKCategorySample {                     
                    let value = (sample.value == HKCategoryValueSleepAnalysis.InBed.rawValue) ? "InBed" : "Asleep"                     
                    print("sleep: \(sample.startDate) \(sample.endDate) - source: \(sample.source.name) - value: \(value)")
                    let seconds = sample.endDate.timeIntervalSinceDate(sample.startDate)
                    let minutes = seconds/60
                    let hours = minutes/60
                }
            }
        }
    }

    healthStore.executeQuery(query)
}

我从 http://benoitpasquier.fr/sleep-healthkit/.

中总结了这个

为 HKCategoryTypeIdentifierSleepAnalysis 查询 HealthKit

Query HealthKit for HKCategoryTypeIdentifierSleepAnalysis

nsdate

ios

swift

healthkit