healthkit

Get total step count for every date in HealthKit

You should use HKStatisticsCollectionQuery: NSCalendar *calendar = [NSCalendar currentCalendar]; NSDateComponents *interval = [[NSDateComponents alloc] init]; interval.day = 1; NSDateComponents *anchorComponents = [calendar components:NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear fromDate:[NSDate date]]; anchorComponents.hour = 0; NSDate *anchorDate = [calendar dateFromComponents:anchorComponents]; HKQuantityType *quantityType = [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierStepCount]; // Create the query HKStatisticsCollectionQuery *query = [[HKStatisticsCollectionQuery alloc] initWithQuantityType:quantityType quantitySamplePredicate:nil options:HKStatisticsOptionCumulativeSum anchorDate:anchorDate … Read more

How to force a HKQuery to load the most recent steps counts?

HealthKit does not always have an up-to-date count of the user’s steps and distance travelled. It imports these values, which actually come from CoreMotion.framework, periodically and in response to certain events. If a running application has an open HKObserverQuery or HKStatisticsCollectionQuery then HealthKit will stream the values to the client but otherwise the samples are … Read more