CODEWITHSUNDEEP
iosswifthealthkithkhealthstore
Zeezer
Zeezer

Reputation: 1533

HealthKit HKQuery from creation date

I am syncing weight data from HealthKit and I keep a reference to the latest weight data synced which I use to retrieve HealthKit data like this: 

let predicate = HKQuery.predicateForSamplesWithStartDate(latestSyncDate, endDate:NSDate(), options: .None)

The problem with this approach is when the user enters historic data which will not be synced. How do I perform the same query but with CreationDate (instead of StartDate), or some kind of database ID which will identify the historic value as being newer?

I just want to filter out all the newly created values from healthkit.

Upvotes: 2

Views: 5014

Answers (1)

Allan
Allan

Reputation: 7353

If you'd like synchronize data from HealthKit, check out HKAnchoredObjectQuery. Each time you query with HKAnchoredObjectQuery, you'll get only the samples that have been added or deleted since the last time you queried.

Upvotes: 5

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