复制安装命令
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86 agent skills optimized for iOS 26+ development with Swift 6.
用 Codex 或 Claude 安装复制这段 Prompt,粘贴到 Codex、Claude 或其他助手里,让它先审查 Skill 页面再帮你安装。
复制前请先查看来源、License 和安全提示。
来源文件:README.md
86 agent skills optimized for iOS 26+ development with Swift 6.3 and modern Apple frameworks. All code examples, patterns, and guidance target the latest APIs -- Liquid Glass, approachable concurrency, Foundation Models, StoreKit 2, SwiftData, async/await URLSession, and more. No deprecated patterns.
Compatible with Claude Code, OpenAI Codex, Cursor, GitHub Copilot, and 40+ other agents. Follows the open Agent Skills standard.
Every skill is self-contained. No skill depends on another. Install only what you need.
Release history: CHANGELOG.md.
The skills CLI is the recommended install method.
Interactive install (recommended):
npx skills add dpearson2699/swift-ios-skills
Running the default command opens the skills CLI UI so you can choose which skills to install and which agent(s) to install them for.
Install everything for any coding agent:
npx skills add dpearson2699/swift-ios-skills --all
Use --all when you want the full set of 86 skills installed automatically for any coding agent.
Install specific skills directly:
npx skills add dpearson2699/swift-ios-skills --skill <skill-name> --skill <skill-name>
Check for updates to installed skills:
npx skills check
Update installed skills to the latest versions:
npx skills update
Use these after installing through the skills CLI.
Add the marketplace (one-time):
/plugin marketplace add dpearson2699/swift-ios-skills
Install everything:
/plugin install all-ios-skills@swift-ios-skills
Or install a themed bundle (bundles limit how many skills load into the context window — if you want everything, use all-ios-skills above instead of installing multiple bundles):
/plugin install swiftui-skills@swift-ios-skills
/plugin install swift-core-skills@swift-ios-skills
/plugin install ios-app-framework-skills@swift-ios-skills
/plugin install ios-data-framework-skills@swift-ios-skills
/plugin install ios-ai-ml-skills@swift-ios-skills
/plugin install ios-engineering-skills@swift-ios-skills
/plugin install ios-hardware-skills@swift-ios-skills
/plugin install ios-platform-skills@swift-ios-skills
/plugin install ios-gaming-skills@swift-ios-skills
/plugin install apple-kit-skills@swift-ios-skills
$skill-installer install https://github.com/dpearson2699/swift-ios-skills/tree/main/skills/<skill-name>
| Plugin | Skills included |
|---|---|
| all-ios-skills | All 86 skills |
| apple-kit-skills | 39 skills spanning Apple Kit frameworks plus CarPlay |
| swiftui-skills | focus-engine, swiftui-animation, swiftui-gestures, swiftui-layout-components, swiftui-liquid-glass, swiftui-navigation, swiftui-patterns, swiftui-performance, swiftui-uikit-interop, swiftui-webkit |
| swift-core-skills | core-data, swift-api-design-guidelines, swift-architecture, swift-codable, swift-charts, swift-concurrency, swift-formatstyle, swift-language, swift-testing, swiftdata |
| ios-app-framework-skills | activitykit, adattributionkit, alarmkit, app-clips, app-intents, avkit, carplay, mapkit, paperkit, pdfkit, photokit, push-notifications, storekit, tipkit, widgetkit |
| ios-data-framework-skills | cloudkit, contacts-framework, eventkit, financekit, healthkit, musickit, passkit, weatherkit |
| ios-ai-ml-skills | apple-on-device-ai, coreml, natural-language, speech-recognition, vision-framework |
| ios-engineering-skills | app-store-optimization, app-store-review, authentication, background-processing, cryptokit, debugging-instruments, device-integrity, ios-accessibility, ios-ettrace-performance, ios-localization, ios-memgraph-analysis, ios-networking, swift-security, swiftlint, ios-simulator, metrickit |
| ios-hardware-skills | accessorysetupkit, core-bluetooth, core-motion, core-nfc, dockkit, pencilkit, realitykit, sensorkit |
| ios-platform-skills | appmigrationkit, audioaccessorykit, browserenginekit, callkit, cryptotokenkit, energykit, homekit, permissionkit, relevancekit, shareplay-activities |
| ios-gaming-skills | gamekit, scenekit, spritekit, tabletopkit |
| Skill | What it covers |
|---|---|
| focus-engine | @FocusState, defaultFocus, focusSection, focused scene values, focus restoration, UIFocusGuide |
| swiftui-animation | Spring animations, PhaseAnimator, KeyframeAnimator, matchedGeometryEffect, SF Symbols |
| swiftui-gestures | Tap, drag, magnify, rotate, long press, simultaneous and sequential gestures |
| swiftui-layout-components | Grid, LazyVGrid, Layout protocol, ViewThatFits, custom layouts |
| swiftui-liquid-glass | iOS 26 Liquid Glass, glassEffect, GlassEffectContainer, morphing transitions |
| swiftui-navigation | NavigationStack, NavigationSplitView, programmatic navigation, deep linking |
| swiftui-patterns | @Observable, state ownership, environment wiring, view composition, async loading, MV-pattern architecture |
| swiftui-performance | Rendering performance, view update optimization, layout thrash, Instruments profiling |
| swiftui-uikit-interop | UIViewRepresentable, UIHostingController, Coordinator, incremental UIKit-to-SwiftUI migration |
| swiftui-webkit | WebView, WebPage, navigation policies, JavaScript calls, local content, custom URL schemes |
| Skill | What it covers |
|---|---|
| swift-api-design-guidelines | Swift API Design Guidelines -- argument labels, mutating/nonmutating pairs, documentation comments, naming conventions |
| swift-architecture | Architecture patterns: MV (@Observable), MVVM, MVI, TCA, Clean Architecture, Coordinator, decision framework |
| swift-codable | Swift Codable, JSONDecoder, JSONEncoder, CodingKeys, custom decoding, nested JSON |
| swift-charts | Bar, line, area, pie, donut, and 3D charts, scrolling, selection, annotations |
| swift-concurrency | Swift 6.2 concurrency, Sendable, actors, structured concurrency, data-race safety |
| swift-formatstyle | FormatStyle protocol, number/currency/date/duration/measurement formatting, custom styles |
| swift-language | Swift 6.3 language idioms, result builders, property wrappers, typed throws |
| swift-testing | Swift Testing framework, @Test, @Suite, #expect, parameterized tests, mocking |
| core-data | Core Data persistence, NSPersistentContainer, NSFetchedResultsController, batch operations, staged migration |
| swiftdata | @Model, @Query, #Predicate, ModelContainer, migrations, CloudKit sync, @ModelActor |
| Skill | What it covers |
|---|---|
| activitykit | ActivityKit, Dynamic Island, Lock Screen Live Activities, push-to-update |
| adattributionkit | Privacy-preserving ad attribution, postbacks, conversion values, re-engagement |
| alarmkit | AlarmKit system alarms and countdown timers, Lock Screen, Dynamic Island, Live Activities |
| app-clips | App Clips, invocation URLs, NFC, QR, App Clip Codes, App Group handoff |
| app-intents | App Intents for Siri, Shortcuts, Spotlight, widgets, and Apple Intelligence |
| avkit | AVPlayerViewController, VideoPlayer, Picture-in-Picture, AirPlay, subtitles |
| carplay | CarPlay templates, navigation, audio, communication, EV charging apps |
| mapkit | MapKit, CoreLocation, annotations, geocoding, directions, geofencing |
| paperkit | PaperMarkupViewController, markup editing, drawing, shapes (iOS 26) |
| pdfkit | PDFView, PDFDocument, annotations, text search, form filling, thumbnails |
| photokit | PhotosPicker, AVCaptureSession, photo library, video recording, media permissions |
| push-notifications | UNUserNotificationCenter, APNs, rich notifications, silent push, service extensions |
| storekit | StoreKit 2 purchases, subscriptions, SubscriptionStoreView, transaction verification |
| tipkit | Feature discovery tooltips, contextual tips, tip rules, tip events |
| widgetkit | Home Screen, Lock Screen, and StandBy widgets, Control Center controls, timeline providers |
| Skill | What it covers |
|---|---|
| cloudkit | CKContainer, CKRecord, subscriptions, sharing, CKSyncEngine, SwiftData sync |
| contacts-framework | CNContactStore, fetch requests, key descriptors, CNContactPickerViewController, save requests |
| eventkit | EKEventStore, EKEvent, EKReminder, recurrence rules, EventKitUI editors and choosers |
| financekit | Apple Card, Apple Cash, Wallet orders, transaction queries, account balances |
| healthkit | HKHealthStore, queries, statistics, workout sessions, background delivery |
| musickit | MusicKit authorization, catalog search, ApplicationMusicPlayer, MPRemoteCommandCenter |
| passkit | Apple Pay, PKPaymentRequest, PKPaymentAuthorizationController, Wallet passes |
| weatherkit | WeatherService, current/hourly/daily forecasts, alerts, attribution requirements |
| Skill | What it covers |
|---|---|
| apple-on-device-ai | Foundation Models framework, Core ML, MLX Swift, on-device LLM inference |
| coreml | Core ML model loading, prediction, MLTensor, compute unit configuration, VNCoreMLRequest, MLComputePlan |
| natural-language | NLTokenizer, NLTagger, sentiment analysis, language identification, embeddings, Translation |
| speech-recognition | SpeechAnalyzer, SpeechTranscriber, SFSpeechRecognizer, on-device recognition, audio buffer processing |
| vision-framework | Vision text recognition, face/barcode detection, image segmentation, VisionKit DataScannerViewController |
| Skill | What it covers |
|---|---|
| app-store-optimization | ASO keyword strategy, description writing, screenshot optimization, Custom Product Pages, A/B testing |
| app-store-review | App Review guidelines, rejection prevention, privacy manifests, ATT, HIG compliance |
| authentication | Sign in with Apple, ASAuthorizationController, passkeys, biometric auth (LAContext), credential management |
| background-processing | BGTaskScheduler, background refresh, URLSession background transfers |
| cryptokit | SHA-2/SHA-3, HMAC, AES-GCM, ChaChaPoly, HPKE, ML-KEM/ML-DSA, P256/Curve25519 signing, ECDH, Secure Enclave |
| debugging-instruments | Xcode debugger, Instruments, os_signpost, MetricKit, crash symbolication |
| device-integrity | DeviceCheck (DCDevice per-device bits), App Attest (DCAppAttestService attestation and assertion flows) |
| ios-accessibility | VoiceOver, Dynamic Type, custom rotors, accessibility focus, assistive-technology support |
| ios-ettrace-performance | ETTrace launch/runtime capture, exact-build dSYM matching, processed flamegraph JSON, comparable verification |
| ios-localization | String Catalogs, pluralization, FormatStyle, right-to-left layout |
| ios-memgraph-analysis | Simulator memgraph capture, leak ownership paths, reachable heap growth, raw evidence preservation |
| ios-networking | URLSession async/await, REST APIs, downloads/uploads, WebSockets, pagination, retry, caching |
| swift-security | Keychain Services, CryptoKit symmetric/asymmetric, biometric authentication, Secure Enclave, certificate trust, credential storage, OWASP compliance · Based on ivan-magda/swift-security-skill |
| ios-simulator | xcrun simctl commands, device lifecycle, push/location/privacy simulation, log streaming, simulator limitations |
| metrickit | MetricManager async reports, hang/crash diagnostics, production performance telemetry |
| swiftlint | SwiftLint setup, .swiftlint.yml, build tool plugin, rule selection, baselines, suppressions, CI integration |
| Skill | What it covers |
|---|---|
| accessorysetupkit | Privacy-preserving BLE/Wi-Fi accessory discovery, ASAccessorySession, picker UI |
| core-bluetooth | CBCentralManager, CBPeripheral, BLE scanning/connecting, services, characteristics, background modes |
| core-motion | CMMotionManager, CMPedometer, accelerometer, gyroscope, activity recognition, altitude |
| core-nfc | NFCNDEFReaderSession, NFCTagReaderSession, NDEF reading/writing, background tag reading |
| dockkit | DockAccessoryManager, camera subject tracking, motor control, framing |
| pencilkit | PKCanvasView, PKDrawing, PKToolPicker, Apple Pencil drawing and annotation |
| realitykit | RealityView, entities, anchors, ARKit world tracking, raycasting, scene understanding |
| sensorkit | Research-grade sensor data, ambient light, keyboard metrics, device usage (approved studies) |
| Skill | What it covers |
|---|---|
| appmigrationkit | Cross-platform data transfer, AppMigrationExtension export/import (iOS 26) |
| audioaccessorykit | Audio accessory features, automatic switching, device placement (iOS 26.4) |
| browserenginekit | Alternative browser engines (EU), process management, web content extensions |
| callkit | CXProvider, CXCallController, PushKit VoIP registration, call directory extensions |
| cryptotokenkit | TKTokenDriver, TKSmartCard, iOS 26 NFC smart cards, certificate-based auth |
| energykit | ElectricityGuidance, EnergyVenue, grid forecasts, load event submission, electricity insights |
| homekit | HMHomeManager, accessories, rooms, actions, triggers, MatterSupport commissioning |
| permissionkit | AskCenter, PermissionQuestion, child communication safety, CommunicationLimits |
| relevancekit | Widget relevance signals, time/location-based relevance providers (watchOS 26) |
| shareplay-activities | GroupActivity, GroupSession, GroupSessionMessenger, coordinated media playback |
| Skill | What it covers |
|---|---|
| gamekit | Game Center, GKLocalPlayer, leaderboards, achievements, real-time and turn-based multiplayer |
| scenekit | SCNView, SCNScene, 3D geometry, materials, lighting, physics, SceneView |
| spritekit | SKScene, SKSpriteNode, SKAction, physics simulation, particle effects, SpriteView |
| tabletopkit | Multiplayer spatial board games, pieces, cards, dice, Group Activities (visionOS) |
Each skill follows the open Agent Skills standard:
skills/
skill-name/
SKILL.md # Required — instructions and metadata
references/ # Optional — detailed reference material
some-topic.md
SKILL.md contains YAML frontmatter (name, description) and markdown instructions. The references/ folder holds longer examples, advanced patterns, and lookup tables that the main file points to.
This repository contains original instructional content and examples for Apple platform development. Where Apple frameworks, APIs, documentation, WWDC sessions, or trademarks are referenced, those materials remain the property of Apple Inc. The license for this repository applies to this project's original content only and does not claim ownership of or relicense Apple's documentation, trademarks, sample code, or other third-party materials.
These skills work with any agent that supports the Agent Skills standard, including:
v3.0 is a major release. If you previously installed v2.x skills, note the following changes:
Skill count: 57 skills in v2.2.0, 76 skills in v3.0.0.
Skill renames: 12 existing skills renamed to use Apple Kit framework names. Old skill paths no longer resolve. Uninstall all skills and reinstall to upgrade.
| v2.x name | v3.0 name |
|---|---|
live-activities | activitykit |
mapkit-location | mapkit |
photos-camera-media | photokit |
homekit-matter | homekit |
callkit-voip | callkit |
metrickit-diagnostics | metrickit |
pencilkit-drawing | pencilkit |
passkit-wallet | passkit |
musickit-audio | musickit |
cloudkit-sync | cloudkit |
eventkit-calendar | eventkit |
realitykit-ar | realitykit |
19 new Kit framework skills: avkit, gamekit, cryptokit, pdfkit, paperkit, spritekit, scenekit, financekit, accessorysetupkit, adattributionkit, carplay, appmigrationkit, browserenginekit, dockkit, sensorkit, tabletopkit, relevancekit, audioaccessorykit, cryptotokenkit.
New bundles: apple-kit-skills (all 39 Apple Kit framework skills) and ios-gaming-skills (GameKit, SpriteKit, SceneKit, TabletopKit).
PaperKit standalone: PaperKit content removed from pencilkit and is now its own paperkit skill.
Beta frameworks: permissionkit, energykit, paperkit, relevancekit, appmigrationkit, and audioaccessorykit require iOS/watchOS 26 beta and are subject to API changes before GM.
All skills remain self-contained: No skill references or depends on another.
To upgrade via the skills CLI:
npx skills add dpearson2699/swift-ios-skills
To upgrade Claude Code bundles, reinstall the bundles you use (old skill paths will no longer resolve).
If these skills save you time or improve your workflow, you can support ongoing maintenance through GitHub Sponsors.
Support helps keep the collection current with new Apple releases, evolving framework APIs, updated examples, and compatibility work across Claude Code, Codex, Cursor, Copilot, and other agents.
Thanks to the following people for supporting this project:
PolyForm Perimeter 1.0.0 -- see LICENSE
What this means in practice:
This project is not affiliated with, endorsed by, or sponsored by Apple Inc.
name: financekit
description: "Access eligible Wallet financial data using FinanceKit and FinanceKitUI. Use when querying transactions or balances, reading Apple Card, Apple Cash, Savings, or U.K. connected-account data, requesting financial-data authorization, using TransactionPicker, enabling iOS 26 background delivery, or saving and checking Wallet orders."Access eligible financial data from Apple Wallet, including U.S. Apple Card, Apple Cash, Savings, and U.K. connected-account data. FinanceKit provides on-device access to accounts, balances, and transactions with user-controlled authorization. Targets Swift 6.3 / current Apple platforms; query APIs are available from iOS/iPadOS 17.4, TransactionPicker from iOS/iPadOS 18, and background delivery from iOS/iPadOS 26.
Keep FinanceKit guidance focused on financial-data access, Wallet order storage/querying, TransactionPicker, and background delivery. Route Apple Pay checkout to PassKit, widget UI/timeline work to WidgetKit, and Wallet order-tracking email or Apple Business Connect optimization outside this skill.
com.apple.developer.financekit from Apple via the FinanceKit entitlement request form. This is a managed capability; Apple reviews each application.NSFinancialDataUsageDescription to Info.plist -- this string is shown to the user during the authorization prompt.<key>NSFinancialDataUsageDescription</key>
<string>This app uses your financial data to track spending and provide budgeting insights.</string>
U.S. FinanceKit financial data requires iOS/iPadOS 17.4+ and currently covers eligible Apple Card, Apple Cash, and Savings data; Apple Card Family participants and Apple Cash Family children are excluded. U.K. support requires iOS/iPadOS 18.4+ and uses open banking for supported institutions. Orders APIs are available separately from financial-data query APIs.
Check whether the device supports FinanceKit before making any API calls. This value is constant across launches and iOS versions.
import FinanceKit
guard FinanceStore.isDataAvailable(.financialData) else {
// FinanceKit not available -- do not call any other financial data APIs.
// The framework terminates the app if called when unavailable.
return
}
For Wallet orders:
guard FinanceStore.isDataAvailable(.orders) else { return }
Data availability returning true does not guarantee data exists on the device. Data access can also become temporarily restricted (e.g., Wallet unavailable, MDM restrictions). Restricted access throws FinanceError.dataRestricted rather than terminating.
Request authorization to access user-selected financial accounts. The system presents an account picker where the user chooses which accounts to share and the earliest transaction date to expose.
let store = FinanceStore.shared
let status = try await store.requestAuthorization()
switch status {
case .authorized: break // Proceed with queries
case .denied: break // User declined
case .notDetermined: break // No meaningful choice made
@unknown default: break
}
Query current authorization without prompting:
let currentStatus = try await store.authorizationStatus()
Once the user grants or denies access, requestAuthorization() returns the cached decision without showing the prompt again. Users can change access in Settings > Privacy & Security > Financial Data.
Accounts are modeled as an enum with two cases: .asset (e.g., Apple Cash, Savings) and .liability (e.g., Apple Card credit). Both share common properties (id, displayName, institutionName, currencyCode) while liability accounts add credit-specific fields.
func fetchAccounts() async throws -> [Account] {
let query = AccountQuery(
sortDescriptors: [SortDescriptor(\Account.displayName)],
predicate: nil,
limit: nil,
offset: nil
)
return try await store.accounts(query: query)
}
switch account {
case .asset(let asset):
print("Asset account, currency: \(asset.currencyCode)")
case .liability(let liability):
if let limit = liability.creditInformation.creditLimit {
print("Credit limit: \(limit.amount) \(limit.currencyCode)")
}
}
Balances represent the amount in an account at a point in time. A CurrentBalance is one of three cases: .available (includes pending), .booked (posted only), or .availableAndBooked.
func fetchBalances(for accountID: UUID) async throws -> [AccountBalance] {
let predicate = #Predicate<AccountBalance> { balance in
balance.accountID == accountID
}
let query = AccountBalanceQuery(
sortDescriptors: [SortDescriptor(\AccountBalance.id)],
predicate: predicate,
limit: nil,
offset: nil
)
return try await store.accountBalances(query: query)
}
Amounts are always positive decimals. Use creditDebitIndicator to determine the sign:
func formatBalance(_ balance: Balance) -> String {
let sign = balance.creditDebitIndicator == .debit ? "-" : ""
return "\(sign)\(balance.amount.amount) \(balance.amount.currencyCode)"
}
// Extract from CurrentBalance enum:
switch balance.currentBalance {
case .available(let bal): formatBalance(bal)
case .booked(let bal): formatBalance(bal)
case .availableAndBooked(let available, _): formatBalance(available)
@unknown default: "Unknown"
}
Use TransactionQuery with Swift predicates, sort descriptors, limit, and offset.
let predicate = #Predicate<Transaction> { $0.accountID == accountID }
let query = TransactionQuery(
sortDescriptors: [SortDescriptor(\Transaction.transactionDate, order: .reverse)],
predicate: predicate,
limit: 50,
offset: nil
)
let transactions = try await store.transactions(query: query)
let amount = transaction.transactionAmount
let direction = transaction.creditDebitIndicator == .debit ? "spent" : "received"
print("\(transaction.transactionDescription): \(direction) \(amount.amount) \(amount.currencyCode)")
// merchantName, merchantCategoryCode, foreignCurrencyAmount are optional
FinanceKit provides factory methods for common filters:
// Filter by transaction status
let bookedOnly = TransactionQuery.predicate(forStatuses: [.booked])
// Filter by transaction type
let purchases = TransactionQuery.predicate(forTransactionTypes: [.pointOfSale, .directDebit])
// Filter by merchant category
let groceries = TransactionQuery.predicate(forMerchantCategoryCodes: [
MerchantCategoryCode(rawValue: 5411) // Grocery stores
])
For a transaction field table and more query patterns, read references/financekit-patterns.md.
Use AsyncSequence-based history APIs for catch-up sync, live updates, or resumable sync. These return inserted, updated, and deleted item IDs plus a HistoryToken.
func catchUpTransactions(for accountID: UUID) async throws {
let history = store.transactionHistory(
forAccountID: accountID,
since: loadSavedToken(),
isMonitoring: false // finish after saved-token catch-up
)
for try await changes in history {
removeLocalRecords(withIDs: changes.deleted)
upsert(changes.inserted + changes.updated)
saveToken(changes.newToken)
}
}
HistoryToken conforms to Codable. Persist it to resume queries without reprocessing data:
func saveToken(_ token: FinanceStore.HistoryToken) {
if let data = try? JSONEncoder().encode(token) {
UserDefaults.standard.set(data, forKey: "financeHistoryToken")
}
}
func loadSavedToken() -> FinanceStore.HistoryToken? {
guard let data = UserDefaults.standard.data(forKey: "financeHistoryToken") else { return nil }
return try? JSONDecoder().decode(FinanceStore.HistoryToken.self, from: data)
}
If a saved token points to compacted history, the framework throws FinanceError.historyTokenInvalid. Discard the token, then immediately run a fresh catch-up query for the affected account or balance stream so local state and the replacement token are rebuilt. Use isMonitoring: true only for a separate live monitor.
let accountChanges = store.accountHistory(since: nil, isMonitoring: true)
let balanceChanges = store.accountBalanceHistory(forAccountID: accountID, since: nil, isMonitoring: true)
Ongoing budgeting sync should cover the data model the user authorized: account objects for account additions/removals, account balances for trend and widget state, and transactions for spending detail. Use separate history tokens per stream or account so a compacted token only forces resync of the affected stream.
For apps that need selective, ephemeral access without full authorization, use TransactionPicker from FinanceKitUI. Access is not persisted -- transactions are passed directly for immediate use.
import FinanceKitUI
struct ExpenseImportView: View {
@State private var selectedTransactions: [Transaction] = []
var body: some View {
if FinanceStore.isDataAvailable(.financialData) {
TransactionPicker(selection: $selectedTransactions) {
Label("Import Transactions", systemImage: "creditcard")
}
}
}
}
FinanceKit supports saving and querying Wallet orders (e.g., purchase receipts, shipping tracking).
let result = try await store.saveOrder(signedArchive: archiveData)
switch result {
case .added: break // Saved
case .cancelled: break // User cancelled
case .newerExisting: break // Newer version already in Wallet
@unknown default: break
}
let orderID = FullyQualifiedOrderIdentifier(
orderTypeIdentifier: "com.merchant.order",
orderIdentifier: "ORDER-123"
)
let result = try await store.containsOrder(matching: orderID, updatedDate: lastKnownDate)
// result: .exists, .newerExists, .olderExists, or .notFound
import FinanceKitUI
AddOrderToWalletButton(signedArchive: orderData) { result in
// result: .success(SaveOrderResult) or .failure(Error)
}
iOS 26+ supports background delivery extensions that notify your app of financial data changes outside its lifecycle. User authorization made in the main app is inherited by the extension. Both targets need the FinanceKit entitlement; use App Groups to share data between the app, extension, and related widgets.
These registration methods are synchronous and nonthrowing; do not write try or await.
store.enableBackgroundDelivery(
for: [.accounts, .accountBalances, .transactions],
frequency: .daily
)
Available frequencies: .hourly, .daily, .weekly. These are expected minimum intervals between extension launches when data changes; longer frequencies give the extension a larger processing window.
Disable selectively or entirely:
store.disableBackgroundDelivery(for: [.transactions])
store.disableAllBackgroundDelivery()
Create a background delivery extension target in Xcode (Background Delivery Extension template). Implement the two async entry points directly on the extension type and return from didReceiveData(for:) only after essential work is saved.
import FinanceKit
@main
struct MyFinanceExtension: BackgroundDeliveryExtension {
func didReceiveData(for types: [FinanceStore.BackgroundDataType]) async {
if types.contains(.transactions) {
await processNewTransactions()
}
if types.contains(.accountBalances) {
await updateBalanceCache()
}
if types.contains(.accounts) {
await refreshAccountList()
}
}
func willTerminate() async { await savePartialWork() }
}
DON'T -- skip availability check:
let store = FinanceStore.shared
let status = try await store.requestAuthorization() // Terminates if unavailable
DO -- guard availability first:
guard FinanceStore.isDataAvailable(.financialData) else {
showUnavailableMessage()
return
}
let status = try await FinanceStore.shared.requestAuthorization()
DON'T -- treat amounts as signed values:
let spent = transaction.transactionAmount.amount // Always positive
DO -- apply the indicator:
let amount = transaction.transactionAmount.amount
let signed = transaction.creditDebitIndicator == .debit ? -amount : amount
DON'T -- assume authorized access persists:
let transactions = try await store.transactions(query: query) // Fails if Wallet restricted
DO -- catch FinanceError:
do {
let transactions = try await store.transactions(query: query)
} catch let error as FinanceError {
if case .dataRestricted = error { showDataRestrictedMessage() }
}
Use the canonical transaction-history loop above and persist each newToken only after local deletes and upserts commit. Keep separate tokens per stream/account; on invalid-token errors, resync only the affected scope.
Both asset and liability accounts use .debit for outgoing money. But .credit means different things: on an asset account it means money received; on a liability account it means a payment or refund that increases available credit. See references/financekit-patterns.md for a full interpretation table.
FinanceStore.isDataAvailable(.financialData) checked before any API callcom.apple.developer.financekit entitlement requested and approved for the app bundle IDNSFinancialDataUsageDescription set in Info.plist with a clear, specific message.authorized, .denied, .notDetermined)FinanceError.dataRestricted caught and handled gracefullyCreditDebitIndicator applied correctly to amounts (not treated as signed)FinanceError.historyTokenInvalid handled by discarding token and immediately resyncing the affected streamisMonitoring: false when live updates are not needed.accounts, .accountBalances, and/or .transactions
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