How to use : HKUnit
Sample type Unit type Unit name Unit string Heart Rate count/time Beats per Minute "count/min”
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问题:
回答1:
Swift : Heart Rate (bpm) save into healthkit store
private func saveHeartRateIntoHealthStore(height:Double) -> Void { // Save the user's heart rate into HealthKit. let heartRateUnit: HKUnit = HKUnit.countUnit().unitDividedByUnit(HKUnit.minuteUnit()) let heartRateQuantity: HKQuantity = HKQuantity(unit: heartRateUnit, doubleValue: height) var heartRate : HKQuantityType = HKQuantityType.quantityTypeForIdentifier(HKQuantityTypeIdentifierHeartRate) let nowDate: NSDate = NSDate() let heartRateSample: HKQuantitySample = HKQuantitySample(type: heartRate , quantity: heartRateQuantity, startDate: nowDate, endDate: nowDate) let completion: ((Bool, NSError!) -> Void) = { (success, error) -> Void in if !success { println("An error occured saving the Heart Rate sample \(heartRateSample). In your app, try to handle this gracefully. The error was: \(error).") abort() } } self.healthStore!.saveObject(heartRateSample, withCompletion: completion) }// end saveHeartRateIntoHealthStore 回答2:
In Swift 3:
func saveHeartRate(date: Date = Date(), heartRate heartRateValue: Double, completion completionBlock: @escaping (Bool, Error?) -> Void) { let unit = HKUnit.count().unitDivided(by: HKUnit.minute()) let quantity = HKQuantity(unit: unit, doubleValue: heartRateValue) let type = HKQuantityType.quantityType(forIdentifier: .heartRate)! let heartRateSample = HKQuantitySample(type: type, quantity: quantity, start: date, end: date) self.healthKitStore.save(heartRateSample) { (success, error) -> Void in if !success { print("An error occured saving the HR sample \(heartRateSample). In your app, try to handle this gracefully. The error was: \(error).") } completionBlock(success, error) } } 回答3:
In ObjectiveC (for those not using Swift, expanded for easy reading):
#define nilable __nullable #define kCountPerMinUnitStr @"count/min" typedef void (^VoidBoolErrorBlock) (BOOL success, NSError * nilable error); enum { // Memory Constants kNil = 0, kNilUPP = 0, kNilRefCon = 0 }; /** writes a weight sample to HealthKit @param weight as HKQuantityTypeIdentifierBodyMass */ - (void) writeCDAHeartRateSample: ( NSStringPtr ) valueStr cdaUnits: ( NSStringPtr ) cdaUnits date: ( NSDate * ) date { // was (CGFloat) double theValue = kNil; // Each quantity consists of a value and a unit. HKUnit * theMeasurementUnit = nil; HKQuantity * theQuantity = nil; HKQuantityType * theHeartRateType = nil; NSDate * theDate = nil; // For every sample, we need a sample type, quantity and a date. HKQuantitySample * theSample = nil; VoidBoolErrorBlock theBlock = nil; theValue = [ valueStr integerValue ]; // theMeasurementUnit = [ HKUnit unitFromCDAString: cdaUnits ]; theMeasurementUnit = [ HKUnit unitFromString: kCountPerMinUnitStr ]; /// FIXME: temp code StackOverflow example theQuantity = [ HKQuantity quantityWithUnit: theMeasurementUnit doubleValue: theValue ]; theHeartRateType = [ HKQuantityType quantityTypeForIdentifier: HKQuantityTypeIdentifierHeartRate ]; theDate = ( date != nil ) ? date : [ NSDate date ];///???: default to today's date? theBlock = [ self saveCDAHeartRateObjectBlock: theValue ]; // For every sample, we need a sample type, quantity and a date. theSample = [HKQuantitySample quantitySampleWithType: theHeartRateType quantity: theQuantity startDate: theDate endDate: theDate]; [ self.healthStore saveObject: theSample withCompletion: theBlock ]; } /** companion block encapsulation for writeCDAHeartRateSample{} @return completion block for saveObject: withCompletion in writeCDAHeartRateSample{} */ - ( VoidBoolErrorBlock ) saveCDAHeartRateObjectBlock: ( double ) value { VoidBoolErrorBlock theResult = nil; theResult = ^(BOOL success, NSError *error) { if (!success) { ///NSLog(@"Error while saving Heart Rate (%f) to Health Store: %@.", value, error); } }; return theResult; }