init(healthStore:quantityType:startDate:device:)
Creates a new quantity series builder.
Declaration
init(healthStore: HKHealthStore, quantityType: HKQuantityType, startDate: Date, device: HKDevice?)Parameters
- healthStore:
The HealthKit store.
- quantityType:
The sample’s quantity type.
- startDate:
The sample’s start date.
- device:
An object representing the device that provided the data. Pass
nilif the app is generating its own data.