HKObserverQuery has the following method that supports receiving updates in the background: - initWithSampleType:predicate:updateHandler: The updateHandler has a completionHandler which has the ...

My requirement is to register for any one of the Health data like steps, weight, heart rate, etc., for background delivery using enableBackgroundDeliveryForType: method. And then create a Observer ...

I have an issue I'm trying to solve, I've setup an HKObserveryQuery, which works great and gathers new data for me. The issue however is that sometimes when I go back to the Health app and delete...