How do I add my hospital to the list of hospitals available on the Health Records on iPhone application?
Health & Fitness
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Hi!
I am using the HKAnchoredObjectQuery to first get a snapshot of the initial results, and then trigger an updateHandler.
I need to handle the initial results and the updates separately, which is why I implemented two completions.
When I test the code, it works for a while. New and deleted samples trigger the updateHandler. However, after a while there appears an error:
[connection] nw_read_request_report [C2] Receive failed with error "Software caused connection abort"
Followingly, the updateHandler will stop getting triggered when I add updates in Apple health. Anyone have experience with this?
func getMostRecentSample(for sampleType: HKSampleType,
anchorKey: String,
completion: @escaping (HKQuantitySample?, Error?) -> Swift.Void,
updateHandler: @escaping (HKQuantitySample, Error?) -> Swift.Void) {
// If it is the first initialization, anchor is passed as nil
var anchor: HKQueryAnchor? = nil
// Check for previous saved anchor in userdefaults
if UserDefaults.standard.object(forKey: anchorKey) != nil {
let data = UserDefaults.standard.object(forKey: anchorKey) as! Data
do {
guard let newAnchor = try NSKeyedUnarchiver.unarchivedObject(ofClass: HKQueryAnchor.self, from: data) else {
print("Could not parse anchor to HKQueryAnchor type")
return
}
anchor = newAnchor
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
let query = HKAnchoredObjectQuery(type: sampleType,
predicate: nil,
anchor: anchor,
limit: HKObjectQueryNoLimit
) { (query, samplesOrNil, _, newAnchor, errorOrNil) in
guard let samples = samplesOrNil as? [HKQuantitySample] else {
fatalError("*** An error occurred during the initial query: \(errorOrNil!.localizedDescription) ***")
}
if let anchor = newAnchor {
do {
let data = try NSKeyedArchiver.archivedData(withRootObject: anchor as Any, requiringSecureCoding: false)
UserDefaults.standard.set(data, forKey: anchorKey)
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
completion(samples.last, nil)
}
// Setting up long-running query
query.updateHandler = { (query, samplesOrNil, _, newAnchor, errorOrNil) in
guard let samples = samplesOrNil as? [HKQuantitySample] else {
fatalError("*** An error occurred during an update: \(errorOrNil!.localizedDescription) ***")
}
if let anchor = newAnchor {
do {
let data = try NSKeyedArchiver.archivedData(withRootObject: anchor as Any, requiringSecureCoding: false)
UserDefaults.standard.set(data, forKey: anchorKey)
} catch {
print("Error retreiving anchor from UserDefaults")
}
}
if let sample = samples.last {
updateHandler(sample, nil)
}
}
self.healthStore.execute(query)
}
I'm developing a single target watchOS app that obtains HealthKit information. I have the "Background Delivery" option checked under "Signing & Capabilities" for the watch target. The app does HKObserverQueries in the foreground that work as I would expect. But when I click the Digital Crown to return to clock face, the HKObserverQuery activity stops. I'm using Xcode 15.4, on Mac 14.5 and a Apple Watch Series 4 running 10.5.
I'm trying to hook into the new workoutEffort score supported in iOS 18, I am collecting this information from users when they submit their workout and trying to add a sample to the HKWorkout in the same manner as I've been adding other samples like bodyweight, calories burned, etc.
I'm receiving the error:
HKWorkout: Sample of type HKQuantityTypeIdentifierWorkoutEffortScore must be related to a workout
I tried adding the samples using HKWorkoutBuilder.add([samples]) as which has been working perfectly for calories burned & bodyweight, but I am receiving the above error for workoutEffortScore
As a second approach, I tried adding the sample after I called finishWorkout on the HKWorkoutBuilder and received back the HKWorkout object using HKHealthStore.add([samples], to: HKWorkout) and am still receiving the same error!
I don't know otherwise how to relate a sample to a workout, I thought those were the APIs to do so? I'm using Xcode 16.0 RC (16A242) and testing on an iOS 16 Pro simulator
I have FB12696743 open since July 21, 2023 and this happened again today.
I get home at approx 10 mins after the hour, walk appox 50 ft across my yard, up 5 steps into my house, let the dog out and pace on my deck watching the dog, go back in the house walk around the kitchen while preparing dinner. A total of about 200 ft. I sit down about 35 past the hour and start to eat and at 10 mins to the next our and I get the reminder to stand.
On the other side I wake up at 5 mins to hour. Walk 8 steps to the bathroom and successfully achieve the stand for that hour.
WHY!?!?!? 😁🤣
In this link, Apple states we can know when a user is in bed vs sleeping and compare their quality of sleep by it. Only, in iOS 18, Apple no longer reports inBed time samples for the Apple Watch. I get why they stopped doing this for the phone, but why the watch? Bug?
My app was using the inBed times for this very purpose and now only works for Garmin and Oura who still report inBed times.
https://developer.apple.com/documentation/healthkit/hkcategoryvaluesleepanalysis
WorkoutKit WorkoutScheduler seems broken with the first beta of iOS 18.2.
I have tested using my app from Xcode and the one that is on the App Store (and working properly on other devices), and it's not working with this new beta of iOS.
They appears in WorkoutScheduler.shared.scheduledWorkouts, but not on the watch.
I even tried with other apps that do the same with
Manual add to Apple Watch with SwiftUI workoutPreview work.
Xcode 16.0
iOS 18.2 Beta 1
WatchOS 11.1
We are seeing an issue where sending data using the asynchronous method HKWorkoutSession.sendToRemoteWorkoutSession(data: Data) will never return in some cases (no success nor failure).
This issue is happening for roughly 5% of Workouts started and will stay broken for the whole workout. The other 95% of the workouts, the connection works flawlessly. This happens on both watchOS 10 and 11, and with phones running iOS 17 or 18. The issue is quite random and not reproducible.
Our app has thousands of workouts a day that use the workout session workout data send, with constant messages being send every few seconds.
In some of those 5% cases the "sendToRemoteWorkoutSession" will throw way later, like 30+ minutes later, if the watch app is awake long enough to capture a log of a failure.
Our code uses the same flow as in the sample project:
https://developer.apple.com/documentation/healthkit/workouts_and_activity_rings/building_a_multidevice_workout_app
Here is some sample code, which is pretty simple.
Setup code:
let workoutSession = try HKWorkoutSession(healthStore: healthStore, configuration: configuration)
workoutSession.delegate = self
activeWorkoutSession?.startMirroringToCompanionDevice { success, error in
print("Mirroring started on companion device: \(success), error: \(error)")
}
workoutSession?.prepare()
then later we send data using the workout session:
do {
print("Will send data")
try await workoutSession.sendToRemoteWorkoutSession(data: data)
print("Successfully sent data") // This nor the error may be called after waiting extensive amounts of time
} catch {
print("Failed to send data, error: \(error)") // This nor the success may be called after waiting extensive amounts of time
}
So far, the only fix is to restart the phone and watch at the same time, which is not a great user experience.
Is anyone else seeing this issue? or know how to fix this issue?
Topic:
App & System Services
SubTopic:
Health & Fitness
Tags:
Watch Connectivity
Health and Fitness
watchOS
WorkoutKit
For a given date, there are discrepancies between the step counts obtained from HealthKit and those displayed in the Health app. Is it possible for such discrepancies to occur even if step counts are not manually entered and multiple devices are not being used?
https://support.apple.com/zh-cn/104959
Our application provides car insurance services. Does Apple have any API related to car accident detection exposed to developers? We want to do something when an iPhone detects a car accident
Topic:
App & System Services
SubTopic:
Health & Fitness
Hello, we want to re-create these graphs and use the raw data for analysis.
We are getting aggregated elevation, heath rate, and pace data, but need to locate the specifics to create these graphs.
Thank you
Topic:
App & System Services
SubTopic:
Health & Fitness
I am building a watchOS app with iOS companion app.
The watch app needs to track the heart rate during the night or while user is sleeping. And the desired frequency of measurement is 0.2Hz (every 5 seconds)
For this I am using the HKWorkout mode with mindAndBody session.
While it works fine, One of the main issue is: after about 6-7 hours of usage, the battery on the watch drains between 40% (Series 9) and 100% (series 7, I think)
My questions:
Are there any other option to track user's heart rate without workout, while the app could be in background?
Another side effect of this workout mode is, Even if we choose not to save the workout in HealthKit, the Activity rings gets populated by this mindAndBody session, which makes it when the user is waking up, the bar is already full, This is not desired.
Is there any option to specify for ActivityRing skips this?
Highly appreciate any help in advance.
Cheers - Prakash
Topic:
App & System Services
SubTopic:
Health & Fitness
Tags:
Watch Connectivity
HealthKit
Battery Life
We have working code to fetch step data from HealthKit after requesting the necessary permissions. However, we’ve encountered an issue specific to one device, the iPhone 16 Pro Max. When querying the data, we do not receive a response, and the code enters an infinite loading state without completing the request.
The user who is facing this issue has tried logging in on another device, and it works fine. On the problematic device (iPhone 16 Pro Max), the request does not complete.
For reference, I’ve included the code below. Resolving this issue is crucial, so we would appreciate any guidance on what steps we can take to troubleshoot or resolve the problem on this specific device.
Please note that the device has granted permission to access HealthKit data.
static let healthStore = HKHealthStore()
static func limitReadFromHealthKitBetweenDates(fromDate: Date, toDate: Date = Date(), completion: @escaping ([HKStatistics]) -> Void) {
guard let stepsQuantityType = HKQuantityType.quantityType(forIdentifier: .stepCount) else { return }
let ignoreUserEntered = HKQuery.predicateForObjects(withMetadataKey: HKMetadataKeyWasUserEntered, operatorType: .notEqualTo, value: true)
let now = toDate
var interval = DateComponents()
interval.day = 1
var calendar = Calendar.current
calendar.locale = Locale(identifier: "en_US_POSIX")
var anchorComponents = calendar.dateComponents([.day, .month, .year], from: now)
anchorComponents.hour = 0
let anchorDate = calendar.date(from: anchorComponents) ?? Date()
let query = HKStatisticsCollectionQuery(quantityType: stepsQuantityType,
quantitySamplePredicate: ignoreUserEntered,
options: [.cumulativeSum],
anchorDate: anchorDate,
intervalComponents: interval)
query.initialResultsHandler = { _, results, error in
guard let results = results else {
print("Error returned from resultHandler: \(String(describing: error?.localizedDescription))")
return
}
print(results)
var statisticsArray: [HKStatistics] = []
results.enumerateStatistics(from: fromDate, to: now) { statistics, _ in
statisticsArray.append(statistics)
if statistics.endDate.getddmmyyyyslashGMT == now.getddmmyyyyslashGMT {
completion(statisticsArray)
}
}
}
healthStore.execute(query)
}
Please note that the code works on all devices except the problematic one. Could you please guide me on the next steps to resolve this issue?
Topic:
App & System Services
SubTopic:
Health & Fitness
Tags:
iOS
iPhone
Health and Fitness
HealthKit
We currently use the HKCategoryValueMenstrualFlow enum to determine the type of menstrual flow: light, medium, etc. a user is having. We also use this enum in determining if it's an actual period day.
The Problem
I see HKCategoryValueMenstrualFlow was recently deprecated but has not been replaced by another data type.
Are there plans to replace/update it with another data type?
When or at what point in the future will this deprecation cause a problem in my code?
Good afternoon,
I am working on a workout tracking app. So far everything is working as expected. However, I note that when my workout saves and is visible within the Fitness App, the workout duration is displayed rather than the kCal burned.
What changes are required to be made in order for this to display the kCal in the list of workouts in Fitness rather than duration?
For reference https://developer.apple.com/videos/play/wwdc2021/10009 this was my reference source for workout functionality.
I have a workout app which I am testing on device currently via TestFlight.
The generated workout (tennis and indoor) shows in the fitness app with correct HR and duration.
However, when I go to my Strava app, it does not show in the list of workouts for importing. (note, activities tracked using the regular tennis mode on the Apple Watch show fine)
I have also concurrently reached out to Strava support to see if there's anything they can offer support for.
However, does anybody here have any knowledge/experience of the requirement? Or whether this is a limitation of an application deployed via TestFlight?
I have a terrible feeling I am chasing ghosts, and it may be a TestFlight limitation for exporting workouts?
Thanks
Topic:
App & System Services
SubTopic:
Health & Fitness
Tags:
Health and Fitness
HealthKit
TestFlight
I've been trying to figure out what the bare minimum is required for HKWorkoutBuilder to create a workout that adds time the appleExerciseTime. I couldn't find the documentation for this. This is my code so far.
func createWorkoutSample(
expectedActiveEnergyData: [Double],
expectedExerciseMinutesData: [Double],
calendar: Calendar,
startDate: Date
) async throws -> [HKSample] {
var testData: [HKSample] = []
let workoutConfiguration = HKWorkoutConfiguration()
workoutConfiguration.activityType = .running
workoutConfiguration.locationType = .outdoor
let results = try await withThrowingTaskGroup(of: HKSample?.self) { group in
for (index) in 0..<expectedActiveEnergyData.count {
guard let date = calendar.date(byAdding: .day, value: index, to: startDate) else {
continue
}
group.addTask {
let builder = HKWorkoutBuilder(
healthStore: self.manager.healthStore,
configuration: workoutConfiguration,
device: .local()
)
let endDate = date.addingTimeInterval(expectedExerciseMinutesData[index] * 60)
try await builder.beginCollection(at: date)
let energyType = HKQuantityType.quantityType(
forIdentifier: .activeEnergyBurned
)!
let energyQuantity = HKQuantity(
unit: HKUnit.kilocalorie(),
doubleValue: expectedActiveEnergyData[index]
)
let energySample = HKQuantitySample(
type: energyType,
quantity: energyQuantity,
start: date,
end: endDate
)
return try await withCheckedThrowingContinuation { continuation in
builder.add([energySample]) { (success, error) in
if let error = error {
continuation.resume(throwing: error)
return
}
builder.endCollection(withEnd: endDate) { (success, error) in
if let error = error {
continuation.resume(throwing: error)
return
}
builder.finishWorkout { (workout, error) in
if let error = error {
continuation.resume(throwing: error)
return
}
continuation.resume(returning: workout)
}
}
}
}
}
}
for try await workout in group {
if let workout = workout {
testData.append(workout)
} else {
print("Skipping nil workout result.")
}
}
return testData
}
print("Total samples created: \(results.count)")
return results
}
When I query appleExerciseTime, there are no results. I've looked at the HKWorkoutBuilder documentation, and most of the information expands on adding samples related to the deprecated HKWorkout.
I want to use the Apple Healthkit data to recommend personalised insurance. Is this allowed? As I have read in the documentation that the Apple Healthkit data can only be used for fitness and health purposes. Anyone knows what is meant / scope of "fitness and health purposes"? Will personalised insurance as per health data be allowed under this category?
Hi,
I've had trouble for a while now with HealthKit giving me different values if I make the request on iOS and WatchOS.
I am using the exact same method on both with the same parameters but I get vast differences in the results.
The code I am using to call HealthKit on both devices is:
let dateRange = HKQuery.predicateForSamples(withStart: Date().removeMonths(numberOfMonths: 1), end: Date().endOfDay())
let predicate: NSPredicate
predicate = NSCompoundPredicate(type: .and, subpredicates: [dateRange])
let query = HKStatisticsQuery(quantityType: HKQuantityType(.stepCount), quantitySamplePredicate: predicate, options: .cumulativeSum) { _, result, error in
if error != nil {
//print("Error fetching step count, or there is no data: \(error.localizedDescription), \(startDate) -> \(endDate)")
onComplete(0)
return
}
if let result, let sum = result.sumQuantity() {
let stepCount = sum.doubleValue(for: HKUnit.count())
DispatchQueue.main.async {
onComplete(Int(stepCount))
}
}
}
healthStore.execute(query)
}
Is there documentation on how to read workout effort scores from a HealthKit workout? I'm interested in reading workoutEffortScore and estimatedWorkoutEffortScore. I have not been successful trying to read them using the same method that I do other workout HKQuantityTypes (heartRate, stepCount, etc). I'm using Swift and I do have authorization for those types requested and granted.
I have found documentation on setting these values (https://developer.apple.com/forums/thread/763539) but not reading them.
Thank You