HKWorkout

Objective C

• // This sample uses hard-coded values and performs all the operations inline
• // for simplicity's sake. A real-world app would calculate these values
• // from sensor data and break the operation up using helper methods.
• HKQuantity *energyBurned =
• [HKQuantity quantityWithUnit:[HKUnit kilocalorieUnit]
• doubleValue:425.0];
• HKQuantity *distance =
• [HKQuantity quantityWithUnit:[HKUnit mileUnit]
• doubleValue:3.2];
• // Provide summary information when creating the workout.
• HKWorkout *run = [HKWorkout workoutWithActivityType:HKWorkoutActivityTypeRunning
• startDate:start
• endDate:end
• duration:0
• totalEnergyBurned:energyBurned
• totalDistance:distance
• metadata:nil];
• // Save the workout before adding detailed samples.
• [self.healthStore saveObject:run withCompletion:^(BOOL success, NSError *error) {
• if (!success) {
• // Perform proper error handling here...
• NSLog(@"*** An error occurred while saving the "
• @"workout: %@ ***", error.localizedDescription);
• abort();
• }
• // Add optional, detailed information for each time interval
• NSMutableArray *samples = [NSMutableArray array];
• HKQuantityType *distanceType =
• [HKObjectType quantityTypeForIdentifier:
• HKQuantityTypeIdentifierDistanceWalkingRunning];
• HKQuantity *distancePerInterval =
• [HKQuantity quantityWithUnit:[HKUnit mileUnit]
• doubleValue:3.2];
• HKQuantitySample *distancePerIntervalSample =
• [HKQuantitySample quantitySampleWithType:distanceType
• quantity:distancePerInterval
• startDate:intervals[0]
• endDate:intervals[1]];
• [samples addObject:distancePerIntervalSample];
• HKQuantityType *energyBurnedType =
• [HKObjectType quantityTypeForIdentifier:
• HKQuantityTypeIdentifierActiveEnergyBurned];
• HKQuantity *energyBurnedPerInterval =
• [HKQuantity quantityWithUnit:[HKUnit kilocalorieUnit]
• doubleValue:15.5];
• HKQuantitySample *energyBurnedPerIntervalSample =
• [HKQuantitySample quantitySampleWithType:energyBurnedType
• quantity:energyBurnedPerInterval
• startDate:intervals[0]
• endDate:intervals[1]];
• [samples addObject:energyBurnedPerIntervalSample];
• HKQuantityType *heartRateType =
• [HKObjectType quantityTypeForIdentifier:HKQuantityTypeIdentifierHeartRate];
• HKQuantity *heartRateForInterval =
• [HKQuantity quantityWithUnit:[HKUnit unitFromString:@"count/min"]
• doubleValue:95.0];
• HKQuantitySample *heartRateForIntervalSample =
• [HKQuantitySample quantitySampleWithType:heartRateType
• quantity:heartRateForInterval
• startDate:intervals[0]
• endDate:intervals[1]];
• [samples addObject:heartRateForIntervalSample];
• // Continue adding additional samples here...
• // Add all the samples to the workout.
• [self.healthStore
• addSamples:samples
• toWorkout:run
• completion:^(BOOL success, NSError *error) {
• if (!success) {
• // Perform proper error handling here...
• NSLog(@"*** An error occurred while adding a "
• @"sample to the workout: %@ ***",
• error.localizedDescription);
• abort();
• }
• }];
• }];

Objective C

• HKQuantityType *distanceType =
• [HKObjectType quantityTypeForIdentifier:
• HKQuantityTypeIdentifierDistanceWalkingRunning];
• NSPredicate *workoutPredicate =
• [HKQuery predicateForObjectsFromWorkout:self.workout];
• NSSortDescriptor *startDateSort =
• [NSSortDescriptor sortDescriptorWithKey:HKSampleSortIdentifierStartDate
• ascending:YES];
• HKSampleQuery *query =
• [[HKSampleQuery alloc]
• initWithSampleType:distanceType
• predicate:workoutPredicate
• limit:0
• sortDescriptors:@[startDateSort]
• resultsHandler:^(HKSampleQuery *query, NSArray *results, NSError *error) {
• if (results == nil) {
• // Perform proper error handling here...
• NSLog(@"*** An error occurred while adding a sample to "
• @"the workout: %@ ***",
• error.localizedDescription);
• abort();
• }
• // process the detailed samples...
• [self processDetailedDistanceSamples:results
• forWorkout:self.workout];
• }];
• [self.healthStore executeQuery:query];