Blog_TestingHealthKit.swift

import UIKit
import HealthKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

	private let store = HKHealthStore()
	private let falls = HKObjectType.quantityType(forIdentifier: .numberOfTimesFallen)!
	
	func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
		requestPermissionToWriteFalls()
		return true
	}
	
	private func requestPermissionToWriteFalls() {
		store.requestAuthorization(toShare: [falls], read: nil) { success, error in
			print("Finished requesting authorization", success, error)
			self.addAFall()
		}
	}
	
	private func addAFall() {
		let quantity = HKQuantity(unit: .count(), doubleValue: 1)
		let sample = HKQuantitySample(type: falls, quantity: quantity, start: Date(), end: Date())
		store.save(sample) { success, error in
				print("Finished saving fall", success, error)
		}
	}

}