我已经构建了一个导入睡眠样本的方法,但我无法让它在几小时内返回正确的值.
查询睡眠数据的方法如下所示：
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)
}
日期的格式如下：
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返回1而不是3.
解决方法
您要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,其中值1与HKCategoryValueSleepAnalysisAsleep匹配.
让小时入睡需要设置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/总结了这一点.