Clever Geek Handbook

Can I add custom data to HealthKit?

We are creating an application that collects a special type of data that is not supported by the list in the Health application. Is there a way to create a new category for this?

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No, not at this time. From the HealthKit Framework Reference :

The HealthKit framework is for sharing data between apps. For this purpose, the structure contains data types and units in a predefined list. These restrictions ensure that other applications understand what the data means and how it can be used. As a result, developers cannot create their own data types or units . Instead, HealthKit tries to provide a fairly comprehensive list of data types and units.



If I were you, I would put a radar ( http://bugreport.apple.com ) that details the type of health data that you would like to see.

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Yes, you can. Just define it as NSDictionary

and go to the metadata field. Note the custom fields below push_ups

, sit_ups

and status

.



let end = NSDate()
let start = NSCalendar.currentCalendar().dateByAddingUnit(.CalendarUnitMinute,
    value: -2, toDate: end, options: nil)

let energyBurned = HKQuantity(unit: HKUnit.kilocalorieUnit(),
    doubleValue: 425.0)

let distance = HKQuantity(unit: HKUnit.mileUnit(),
    doubleValue: 0)

let status = "felt okay...could have done more"
let push_ups = 40
let sit_ups = 50

let s = ["push_ups": push_ups,
    "sit_ups": sit_ups,
    "notes": status
    ] as NSDictionary

// Provide summary information when creating the workout.
let wrkOut = HKWorkout(activityType: HKWorkoutActivityType.FunctionalStrengthTraining,
    startDate: start, endDate: end, duration: 0,
    totalEnergyBurned: energyBurned, totalDistance: distance, metadata: s as! [NSObject : AnyObject])
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