如何解决HealthKit查询泳圈/每圈样式
我设法查询了游泳泳道,但这只是累计数。
private func querySwimStrokeCount(for sample: HKSample) {
let strokeCount = HKSampleType.quantityType(forIdentifier: HKQuantityTypeIdentifier.swimmingStrokeCount)!
let sampleDate = HKQuery.predicateForSamples(withStart: sample.startDate,end: sample.endDate,options: [])
let query = HKStatisticsQuery(quantityType: strokeCount,quantitySamplePredicate: sampleDate,options: .cumulativeSum) { (query,statisticsOrNil,errorOrNil) in
guard let statistics = statisticsOrNil else {
return
}
let sum = statistics.sumQuantity()
let strokeCount = sum?.doubleValue(for: HKUnit.count()) ?? 0
DispatchQueue.main.async {
self.strokeCount = Int(strokeCount)
}
}
HKHealthStore().execute(query)
}
现在我问一个问题:如何获得每圈的行程数以及该圈的游泳方式? Apple Health App显示了这些数据(请参见屏幕截图),但是我不知道如何查询它们。
任何帮助表示赞赏!
解决方法
您正在使用HKStatisticsQuery
,它仅用于获取汇总数据。
统计信息查询可计算一组 匹配的样本。您可以使用统计查询来计算 一组离散量的最小值,最大值或平均值,或 用它们来计算累计数量的总和。
要获取真实样本HKSampleQuery
您可以使用示例查询来搜索以下内容的任何具体子类: HKSample类,包括HKCategorySample,HKCorrelation, HKQuantitySample和HKWorkout对象。示例查询返回 与提供的类型和谓词匹配的样本对象。您可以 提供返回样品的排序顺序,或限制数量 样品退回。其他查询类可用于执行更多操作 专业搜索和计算。有关更多信息,请参见 HKQuery。
或HKAnchoredObjectQuery
,我更喜欢监视所有更改
锚定对象查询提供了一种简便的方法来搜索 HealthKit商店。 HKAnchoredObjectQuery返回锚点值 对应于接收到的最后一个样本或删除的对象 查询。随后的查询可以使用此锚点来限制其 结果仅适用于较新保存或删除的对象。锚定对象 查询大部分是不可变的。您可以分配查询的updateHandler 实例化该对象后的属性,但必须设置所有其他属性 实例化对象时的属性。您无法更改它们。
这是一些希望对您的问题有用的代码
var anchor = self.getAnchorFor() // My private method to get the latest anchor for a type of HKEntry
let sampleType = HKObjectType
self.anchoredQuery = HKAnchoredObjectQuery(type: sampleType,predicate: nil,anchor: anchor,limit: HKObjectQueryNoLimit) { (query,samplesOrNil,deletedObjectsOrNil,newAnchor,errorOrNil) in
guard let addedObjects = samplesOrNil,let deletedObjects = deletedObjectsOrNil else {
// Handle the error here.
return;
}
anchor = newAnchor
self.storeNewAnchor() // My private method to store the latest anchor for a type of HKEntry
for obj in addedObjects {
if let sampleObj = obj as? HKWorkout{ // HKWorkout is just an example for a typ
let uuid = sampleObj.uuid.uuidString
let source = sampleObj.sourceRevision.source.name
let sourceBundleID = sampleObj.sourceRevision.source.bundleIdentifier
print("object added: " + uuid)
print("source: " + source + " bundleID: " + sourceBundleID)
}
}
for obj in deletedObjects {
let uuid = obj.uuid.uuidString
print("object deleted: " + uuid)
}
print("Finished-")
}
// Optionally,add an update handler.
self.anchoredQuery!.updateHandler = { (query,let deletedObjects = deletedObjectsOrNil else {
// Handle the error here.
return;
}
anchor = newAnchor
self.storeNewAnchor() // My private method to store the latest anchor for a type of HKEntry
for obj in addedObjects {
if let sampleObj = obj as? HKWorkout{ // HKWorkout is just an example for a typ
let uuid = sampleObj.uuid.uuidString
let source = sampleObj.sourceRevision.source.name
let sourceBundleID = sampleObj.sourceRevision.source.bundleIdentifier
print("object added: " + uuid)
print("source: " + source + " bundleID: " + sourceBundleID)
}
}
for obj in deletedObjects {
let uuid = obj.uuid.uuidString
print("object deleted: " + uuid)
}
print("Update Finished-")
}
// Run the query.
self.healthStore.execute(self.anchoredQuery!)
,
@incmiko的回答通过查看HKSampleQuery
为我指明了正确的方向。但是他/她的代码对我没有帮助。因此,这就是我为获得每圈冲程样式所做的事情。
private func querySwimStrokes(for sample: HKSample) {
let sampleType = HKSampleType.quantityType(forIdentifier: .swimmingStrokeCount)!
let sampleDate = HKQuery.predicateForSamples(withStart: sample.startDate,end: sample.endDate,options: [])
let sortDescriptor = NSSortDescriptor(key: HKSampleSortIdentifierStartDate,ascending: false)
let query = HKSampleQuery(sampleType: sampleType,predicate: sampleDate,limit: HKObjectQueryNoLimit,sortDescriptors: [sortDescriptor]) { query,errorOrNil in
samplesOrNil?.forEach({ sample in
if let quantitySample = sample as? HKQuantitySample {
let strokes = quantitySample.quantity.doubleValue(for: HKUnit.count())
print(strokes)
}
if let strokeStyleInt = sample.metadata?["HKSwimmingStrokeStyle"] as? Int,let strokeStyle = HKSwimmingStrokeStyle(rawValue: strokeStyleInt){
print(strokeStyle)
}
})
}
HKHealthStore().execute(query)
}
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。