Please help me learn how to use HealthKit.

Discussion in 'iOS Programming' started by moonman239, Sep 19, 2014.

  1. moonman239 macrumors 68000

    Mar 27, 2009
    I'm creating a small app that calculates a user's body mass index. To do this, I need to know how to get the height and weight information. I've read some Apple documentation (here's a link to Apple's HealtKit reference: HealthKit Framework Reference) and am now up to the part of the code that is executed when the HKQuery executed successfully. However, I do not know how to access the data. Will someone please help me? Thanks.
  2. TheWatchfulOne, Sep 19, 2014
    Last edited: Sep 19, 2014

    TheWatchfulOne macrumors 6502


    Jun 19, 2009
    From the Class Hierarchy you linked to:

    I would start by reading the references for those Classes to see how they are related and how they interact with each other. I've never messed with HealthKit myself so I can't tell you anything specific.

    And just in case you did not know: HealthKit is being withheld until a bug is fixed. You won't be able to release a HealthKit app in the App Store just yet, but don't let that stop you from experimenting and learning it.

    After a little further reading...

    You might check out this method on HKSampleQuery and see if there's anything about it that interests you.

  3. moonman239 thread starter macrumors 68000

    Mar 27, 2009
    Thanks, but I managed to find the answer. Apparently you have to get the data from the store object you're supposed to initialize.

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