Cannot convert value of type 'Set<HKQuantityType>' to expected argument type 'HKQuantityType

Question

magwin_santhosh OP

Created Jan ’23

Replies 3

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Views 2.4k

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below is my code of reading data from HealthKit for Multiple Data

but for reading Multiple data using Set() it shows

"Cannot convert value of type 'Set' to expected argument type 'HKQuantityType' "

func readData(completion: @escaping (HKStatisticsCollection?)-> Void){

        let stepCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.stepCount)!

        let MoveCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.appleMoveTime)!

        let DistanceCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.distanceWalkingRunning)!

        let Activitysummary = Set([stepCount,MoveCount,DistanceCount])

        

        let startDate = Calendar.current.date(byAdding: .day, value: -7, to: Date())

        //MARK: here we setting our start time at 12.00 AM

        let anchorDate = Date.monday12AM()

        //MARK: we going to calculate the value for each day

        let daily = DateComponents(day : 1)

        let predicate = HKQuery.predicateForSamples(withStart: startDate, end: Date(), options: .strictStartDate)

        //MARK: .cummulativesum -> iPhone and Apple Watch Difference

        query =  HKStatisticsCollectionQuery(quantityType: Activitysummary, quantitySamplePredicate: predicate,options: .cumulativeSum, anchorDate: anchorDate, intervalComponents: daily)

//MARK:  here in ActivitySummary it show the error

        

        query!.initialResultsHandler = { query,statisticsCollection, error in

            completion(statisticsCollection)

        }

        if let healthStore = healthStore, let query = self.query{

            healthStore.execute(query)

        }

    }

Answered by Claude31 in 741723022

I'm not sure it is possible to have query with several identifiers.

So you could try to have a query for each stepCount, moveCount, distanceCount and compute statistics yourself for the 3.

See here: https://stackoverflow.com/questions/71273378/how-to-handle-multiple-queries-of-different-hkquantitytypeidentifier

can only query only one HKQuantityIdentifier at a time

Boost

Answer 1

Claude31 OP

Jan ’23

I tested the following (in playgrounds) and got no error:

        let stepCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.stepCount)!
        let MoveCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.appleMoveTime)!
        let DistanceCount = HKQuantityType.quantityType(forIdentifier: HKQuantityTypeIdentifier.distanceWalkingRunning)!
        let Activitysummary = Set([stepCount,MoveCount,DistanceCount])

So, where exactly do you get the error ?

Note: var names should start with lowercase: distanceCount, activitySummary…

0

Answer 2

magwin_santhosh OP

Jan ’23

yeah till this there is no problem the problem arises on below code

query =  HKStatisticsCollectionQuery(quantityType: Activitysummary, quantitySamplePredicate: predicate,options: .cumulativeSum, anchorDate: anchorDate, intervalComponents: daily)

here in quantityType: Activitysummary throws an error saying "Cannot convert value of type 'Set' to expected argument type 'HKQuantityType "

0

Answer 3

Claude31 OP

Jan ’23

Accepted Answer

I'm not sure it is possible to have query with several identifiers.

So you could try to have a query for each stepCount, moveCount, distanceCount and compute statistics yourself for the 3.

See here: https://stackoverflow.com/questions/71273378/how-to-handle-multiple-queries-of-different-hkquantitytypeidentifier

can only query only one HKQuantityIdentifier at a time

0