Pull data from HealthKit for a specific time of day

Question

I want to pull blood sugar data from lunchtime only (or just a specific time period from each day). I know how to query data from only the past 30 days etc. But is there a way to query only from a certain time period each day?

Answer 1

尝试这个

HKQuery.predicateForSamplesWithStartDate(past, endDate:pastAnotherdate, options: .None)