public static Task <double> ReadCurrentHeightInMetres(HKHealthStore store)
{
var tcs = new TaskCompletionSource <double>();
var heightType = HKQuantityTypeIdentifierKey.Height;
var heightUnit = HKUnit.Meter;
var sort = new NSSortDescriptor(HKSample.SortIdentifierStartDate, false);
var sampleType = HKObjectType.GetQuantityType(HKQuantityTypeIdentifierKey.Height);
var query = new HKSampleQuery(sampleType, null, 1, new NSSortDescriptor[] { sort },
(q, data, error) =>
{
if (error == null)
{
var amount = (data[0] as HKQuantitySample).Quantity.GetDoubleValue(heightUnit);
tcs.TrySetResult(amount);
}
else
{
tcs.TrySetException(new NSErrorException(error));
}
});
store.ExecuteQuery(query);
return(tcs.Task);
}
private void GetDataFromQuery(DateTime start, DateTime end, HKQuantityType quentityType, HKUnit unit, Action <IEnumerable <double> > act)
{
NSCalendar calendar = NSCalendar.CurrentCalendar;
NSDateComponents interval = new NSDateComponents {
Day = 1
};
NSDate startDate = start.ToNsDate();
NSDate anchorDate = end.ToNsDate();
HKStatisticsCollectionQuery query = new HKStatisticsCollectionQuery(
quentityType,
null,
HKStatisticsOptions.CumulativeSum,
anchorDate,
interval
)
{
InitialResultsHandler = (localQuery, result, error) =>
{
if (error != null)
{
OnError?.Invoke(error.Description);
return;
}
int daysCount = (end - start).Days + 1;
double[] st = new double[daysCount];
result.EnumerateStatistics(startDate, anchorDate, (statistics, stop) =>
{
HKQuantity quantity = statistics?.SumQuantity();
int index = (statistics.StartDate.ToDateTime() - start).Days;
if (index < 0 || index > st.Length)
{
return;
}
double value = quantity?.GetDoubleValue(unit) ?? 0;
st[index] = value;
});
act(st.AsEnumerable());
}
};
try
{
_healthStore.ExecuteQuery(query);
}
catch (Exception e)
{
OnError?.Invoke(e.Message);
}
}
public async Task <double> QueryLastRegistratedWalkingDistance()
{
var distanceType = HKQuantityType.GetQuantityType(HKQuantityTypeIdentifierKey.DistanceWalkingRunning);
double lastRegistratedWalkingDistance = 0.0;
var timeSortDescriptor = new NSSortDescriptor(HKSample.SortIdentifierEndDate, false);
var query = new HKSampleQuery(distanceType, new NSPredicate(IntPtr.Zero), 1, new NSSortDescriptor[] { timeSortDescriptor },
(HKSampleQuery resultQuery, HKSample[] results, NSError error) => {
HKQuantity quantity = null;
string resultString = string.Empty;
if (results.Length != 0)
{
var quantitySample = (HKQuantitySample)results [results.Length - 1];
quantity = quantitySample.Quantity;
lastRegistratedWalkingDistance = quantity.GetDoubleValue(HKUnit.Meter);
HealthKitDataContext.ActiveHealthKitData.DistanceReadings.TotalDistanceOfLastRecording = lastRegistratedWalkingDistance;
Console.WriteLine(string.Format("value of QueryLastRegistratedWalkingDistance: {0}", lastRegistratedWalkingDistance));
}
});
m_healthKitStore.ExecuteQuery(query);
return(lastRegistratedWalkingDistance);
}
private void FetchMostRecentData(HKQuantityType quantityType, Action <List <HKSample>, NSError> completion, int days)
{
var timeSortDescriptor = new NSSortDescriptor(HKSample.SortIdentifierEndDate, false);
DateTime startDay = DateTime.Now;
DateTime endDay = startDay.AddDays(-days).AddHours(-startDay.Hour).AddMinutes(-startDay.Minute).AddSeconds(-startDay.Second).AddMilliseconds(-startDay.Millisecond);
var predicate = HKQuery.GetPredicateForSamples(DateUtil.DateTimeToNSDate(endDay), DateUtil.DateTimeToNSDate(startDay), HKQueryOptions.None);
var query = new HKSampleQuery(quantityType, predicate, 0, new NSSortDescriptor[] { timeSortDescriptor },
(HKSampleQuery resultQuery, HKSample[] results, NSError error) =>
{
if (completion != null && error != null)
{
completion(null, error);
return;
}
completion?.Invoke(results.ToList(), error);
});
HealthStore.ExecuteQuery(query);
}
public int StepQuery()
{
var dateComponents = new NSDateComponents();
dateComponents.Day = -1;
var cal = new NSCalendar(NSCalendarType.ISO8601);
var yesterday = cal.DateFromComponents(dateComponents);
var predicate = HKQuery.GetPredicateForSamples(yesterday, new NSDate(), HKQueryOptions.None);
var query = new HKSampleQuery(HKObjectType.GetQuantityType(HKQuantityTypeIdentifierKey.StepCount),
predicate,
0,
null,
new HKSampleQueryResultsHandler((retQuery, results, error) => {
Console.WriteLine(results.Length);
}));
_healthStore.ExecuteQuery(query);
return(0);
}
protected override Task <IEnumerable <T> > Query <T>(HealthDataType healthDataType,
AggregateTime aggregateTime,
DateTime startDate, DateTime endDate)
{
if (_healthStore == null || !HKHealthStore.IsHealthDataAvailable)
{
throw new NotSupportedException("HealthKit data is not available on this device");
}
var authorized = IsAuthorizedToRead(healthDataType);
if (!authorized)
{
throw new UnauthorizedAccessException($"Not enough permissions to request {healthDataType}");
}
var taskComplSrc = new TaskCompletionSource <IEnumerable <T> >();
var healthKitType = healthDataType.ToHealthKit();
var quantityType = HKQuantityType.Create(healthKitType.QuantityTypeIdentifier);
var predicate = HKQuery.GetPredicateForSamples((NSDate)startDate, (NSDate)endDate, HKQueryOptions.StrictStartDate);
if (aggregateTime != AggregateTime.None)
{
var anchor = NSCalendar.CurrentCalendar.DateBySettingsHour(0, 0, 0, NSDate.Now, NSCalendarOptions.None);
var interval = new NSDateComponents();
switch (aggregateTime)
{
case AggregateTime.Year:
interval.Year = 1;
break;
case AggregateTime.Month:
interval.Month = 1;
break;
case AggregateTime.Week:
interval.Week = 1;
break;
case AggregateTime.Day:
interval.Day = 1;
break;
case AggregateTime.Hour:
interval.Hour = 1;
break;
}
HKStatisticsOptions hkStatisticsOptions;
if (healthKitType.Cumulative)
{
hkStatisticsOptions = HKStatisticsOptions.CumulativeSum;
}
else
{
hkStatisticsOptions = HKStatisticsOptions.DiscreteAverage |
HKStatisticsOptions.DiscreteMax |
HKStatisticsOptions.DiscreteMax;
}
var queryAggregate = new HKStatisticsCollectionQuery(quantityType, predicate, hkStatisticsOptions,
anchor, interval)
{
InitialResultsHandler = (collectionQuery, results, error) =>
{
var healthData = new List <T>();
foreach (var result in results.Statistics)
{
var hData = new AggregatedHealthData
{
StartDate = (DateTime)result.StartDate,
EndDate = (DateTime)result.EndDate,
};
if (healthKitType.Cumulative)
{
hData.Sum = result.SumQuantity().GetDoubleValue(healthKitType.Unit);
}
else
{
hData.Min = result.MinimumQuantity().GetDoubleValue(healthKitType.Unit);
hData.Max = result.MaximumQuantity().GetDoubleValue(healthKitType.Unit);
hData.Average = result.AverageQuantity().GetDoubleValue(healthKitType.Unit);
}
healthData.Add(hData as T);
}
taskComplSrc.SetResult(healthData);
}
};
_healthStore.ExecuteQuery(queryAggregate);
}
else
{
var sortDescriptor = new[] { new NSSortDescriptor(HKSample.SortIdentifierEndDate, true) };
HKSampleType sampleType;
if (healthKitType.HKType == HealthKitData.HKTypes.Category)
{
sampleType = HKCategoryType.Create(healthKitType.CategoryTypeIdentifier);
}
else if (healthKitType.HKType == HealthKitData.HKTypes.Quantity)
{
sampleType = HKQuantityType.Create(healthKitType.QuantityTypeIdentifier);
}
else if (healthKitType.HKType == HealthKitData.HKTypes.Workout)
{
sampleType = HKSampleType.GetWorkoutType();
}
else
{
throw new NotSupportedException();
}
var query = new HKSampleQuery(sampleType, predicate,
HKSampleQuery.NoLimit, sortDescriptor,
(resultQuery, results, error) =>
{
IEnumerable <T> healthData = default(IEnumerable <T>);
if (sampleType == HKSampleType.GetWorkoutType())
{
healthData = results?.Select(result => new WorkoutData
{
StartDate = (DateTime)result.StartDate,
EndDate = (DateTime)result.EndDate,
Duration = (result as HKWorkout).Duration,
Device = (result as HKWorkout).Device?.ToString(),
WorkoutType = (result as HKWorkout).WorkoutDataType()
//TotalDistance = Convert.ToDouble((result as HKWorkout).TotalDistance),
//TotalEnergyBurned = Convert.ToDouble((result as HKWorkout).TotalEnergyBurned)
} as T);
}
else
{
healthData = results?.Select(result => new HealthData
{
StartDate = (DateTime)result.StartDate,
EndDate = (DateTime)result.EndDate,
Value = ReadValue(result, healthKitType.Unit),
UserEntered = result.Metadata?.WasUserEntered ?? false,
} as T);
}
taskComplSrc.SetResult(healthData);
});
_healthStore.ExecuteQuery(query);
}
return(taskComplSrc.Task);
}
