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开始在 visionOS 中使用 HealthKit
探索如何使用 HealthKit 打造能够充分发挥空间画布优势的精彩体验。了解适用于 visionOS 的 HealthKit 功能,探索如何将现有 iPadOS App 移植到 visionOS,并了解有关在客人用户会话期间管理 HealthKit 的特别注意事项。你还将学习如何将 HealthKit 与 SwiftUI、Swift Charts 和 Swift 并发搭配使用,来打造创新满满的用户体验。
章节
- 0:00 - Introduction
- 1:52 - HealthKit in visionOS
- 3:48 - Spatial health experiences
- 7:47 - Guest User support
资源
- Bringing multiple windows to your SwiftUI app
- Forum: Health & Fitness
- HealthKit
- Let others use your Apple Vision Pro
- Visualizing HealthKit State of Mind in visionOS
相关视频
WWDC24
WWDC23
WWDC20
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下载Array
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2:43 - Check whether health data is available
import HealthKit if HKHealthStore.isHealthDataAvailable() { // Configure HealthKit-powered experiences } else { // Omit HealthKit experiences }
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3:03 - Request authorization to read or write data
import HealthKitUI import SwiftUI func healthDataAccessRequest( store: HKHealthStore, shareTypes: Set<HKSampleType>, readTypes: Set<HKObjectType>? = nil, trigger: some Equatable, completion: @escaping (Result<Bool, any Error>) -> Void ) -> some View
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5:59 - Update number of chart points based on chart’s size
// Update number of chart points based on chart’s size import SwiftUI import HealthKit import Charts struct ChartView: View { @State var chartBinCount: Int var body: some View { Chart { ... // Chart body } .onGeometryChange(for: Int.self) { proxy in // Observe for changes to the chart’s size Int(proxy.size.width / 80) // 80 points per chart point } action: { newValue in // Update the number of chart points chartBinCount = newValue } } }
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6:33 - Open chart as a new window
// Opens chart as a new window struct NewChartViewerButton: View { @Environment(\.openWindow) private var openWindow var body: some View { Button("Open In New Window", systemImage: "plus.rectangle.on.rectangle") { openWindow(id: "chart-viewer-window") } } }
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9:00 - HealthKit returns a new error if a write is attempted during a Guest User session
let sample = HKStateOfMind(date: date, kind: .momentaryEmotion, valence: valence, labels: [label], associations: [association]) do { try await healthStore.save(sample) } catch { switch error { case HKError.errorNotPermissibleForGuestUserMode: // Drop data generated in a Guest User session default: // Existing error handling } }
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9:26 - Request authorization to State of Mind datatype
// Request authorization to State of Mind datatype @main struct HKStateOfMindDataSampleApp: App { @State var toggleHealthDataAuthorization = false @State var healthDataAuthorized: Bool? var body: some Scene { WindowGroup { TabView { ... } .healthDataAccessRequest(store: healthStore, shareTypes: [.stateOfMindType()], readTypes: [.stateOfMindType()], trigger: toggleHealthDataAuthorization) { result in switch result { case .success: healthDataAuthorized = true case .failure(let error as HKError): switch (error.code) { case .errorNotPermissibleForGuestUserMode: // Defer requests for a later time default: // Existing error handling } ... } } } } }
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9:42 - Save a State of Mind sample from an emoji type
// Saves a State of Mind sample from an emoji type public func saveSample(date: Date, association: HKStateOfMind.Association, healthStore: HKHealthStore, didError: Binding<Bool>) async -> SaveDetails? { do { let sample = createSample(date: date, association: association) try await healthStore.save(sample) } catch { switch error { case HKError.errorNotPermissibleForGuestUserMode: // Drop data you generate in a Guest User session. didError.wrappedValue = true return SaveDetails(errorString: "Health data is not saved for Guest Users.") default: // Existing error handling. didError.wrappedValue = true return SaveDetails(errorString: "Health data could not be saved: \(error)") } } ...
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9:58 - Present an alert with a message using the given details
// Present an alert with a message using the given details struct EventView: View { @State private var showAlert: Bool = false @State private var saveDetails: EmojiType.SaveDetails? = nil var body: some View { EmojiPicker() .alert("Unable to Save Health Data", isPresented: $showAlert, presenting: saveDetails, actions: { _ in }, // default OK button message: { details in Text(details.errorString) }) } }
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