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); } }
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); }