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ΞϓϦ मਖ਼લ ͷߏ଄

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&OUJUZ struct Drink: Hashable, Codable { let mgCaffeine: Double let date: Date let uuid: UUID } enum DrinkType: Int, CaseIterable, Identifiable { case smallCoffee case mediumCoffee case largeCoffee case singleEspresso case doubleEspresso case quadEspresso case blackTea case greenTea case softDrink case energyDrink case chocolate } %SJOL %SJOL5ZQF

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7JFX$PGGFF%BUB 0CTFSWBCMF0CKFDU $PGGFF5SBDLFS7JFX %SJOL-JTU7JFX @EnvironmentObject var coffeeData: CoffeeData coffeeData.currentMGCaffeineString coffeeData.totalCupsTodayString coffeeData.addDrink(…)

$PGGFF%BUB class CoffeeData: ObservableObject { lazy var healthKitController = HealthKitController(withModel: self) // @Published ͳͷͰϝΠϯεϨου͔Βૢ࡞͢Δඞཁ͕͋Δ @Published public var currentDrinks: [Drink] = [] // … func save() { /* currentDrinks ΛσΟεΫ΁อଘ(όοΫάϥ΢ϯυॲཧ) */ } func load() { /* currentDrinks ΛσΟεΫ͔ΒಡΈࠐΈ(όοΫάϥ΢ϯυॲཧ) */ } }

)FBMUI,JU$POUSPMMFS // … runs the query on an anonymous background queue. private let store = HKHealthStore() class HealthKitController { private weak var model: CoffeeData? // … public func loadNewDataFromHealthKit(…) { /* … */ } public func save(drink: Drink) { /* … */ } private func updateModel(newDrinks: [Drink], deletedDrinks: Set) { // … // @Published ͳͷͰϝΠϯεϨου͔Βૢ࡞͢Δඞཁ͕͋Δ model?.currentDrinks = drinks } }

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੔ཧ͞Ε֤ͨΞΫλʔͷ໾ׂ

$PGGFF%BUB @MainActor class CoffeeData: ObservableObject { lazy var healthKitController = HealthKitController(withModel: self) private let store = CoffeeDataStore() @Published public private(set) var currentDrinks: [Drink] = [] // … } currentDrinks ͸ private(set) ʹͳΓ CoffeeData ಺ͰͷΈߋ৽͞ΕΔΑ͏ʹ ৽ͨʹఆٛͨ͠ CoffeeDataStore ͸ϓϩύςΟͱͯ͠อ͍࣋ͯ͠Δ HealthKitController ͱͷؔ܎ੑ͸มΘΒͣ

$PGGFF%BUB4UPSF actor CoffeeDataStore { func save(_ currentDrinks: [Drink]) { /* currentDrinks ΛσΟεΫ΁อଘ */ } func load() -> [Drink] { /* currentDrinks ΛσΟεΫ͔ΒಡΈࠐΈ */ } // … } ෼཭લͷؔ਺͸ͦΕͧΕ save(), load() save ʹ͸Ҿ਺͕ɺload ʹ͸ฦΓ஋͕෇͍ͨ ΞΫλʔؒͰඞཁͳ৘ใΛ΍ΓͱΓ͢ΔͨΊͷΠϯλʔϑΣʔε

)FBMUI,JU$POUSPMMFS actor HealthKitController { private weak var model: CoffeeData? func loadNewDataFromHealthKit() async -> Bool { // … let (samples, deletedSamples, newAnchor) = try await queryHealthKit() // … await model?.updateModel(newDrinks: newDrinks, deletedDrinks: deletedDrinks) // … } // … } CoffeeData ͱͷؔ܎ੑ͸มΘΒͣ ௚઀ currentDrink Λߋ৽͢ΔͷͰ͸ͳ͘ɺupdateModel Λհͯ͠ߋ৽͢Δ ΫΤϦͷ࣮ߦ෦෼ͷهड़͕ΦγϟϨʹ

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