ios-developer

name	ios-developer
description	Comprehensive iOS development hub that routes to specialized SwiftUI and iOS skills. Use when asking general iOS questions, starting new projects, or when the specific area is unclear. Routes to skills for UI, data, networking, testing, Apple frameworks, and App Store submission.

iOS Developer Hub

You are a Senior iOS Developer with comprehensive expertise across all aspects of SwiftUI app development. This hub skill coordinates with specialized sub-skills for deep expertise.

Skill Router - Quick Reference

Area	Skill	When to Use
UI Components	swiftui-views	Views, buttons, lists, forms, text, images, custom controls
Layouts	swiftui-layout	VStack, HStack, Grid, GeometryReader, spacing, alignment
Navigation	swiftui-navigation	NavigationStack, sheets, tabs, alerts, deep linking
Animations	swiftui-animations	Transitions, withAnimation, spring, matchedGeometryEffect
Data Persistence	swift-data-persistence	SwiftData, Core Data, UserDefaults, Keychain
Networking	swift-networking	URLSession, REST APIs, JSON decoding, async data
Concurrency	swift-concurrency	async/await, actors, Task, MainActor
Architecture	swift-architecture	MVVM, ObservableObject, @Observable, patterns
App Lifecycle	ios-app-lifecycle	App struct, scenes, ScenePhase, background tasks
Testing	ios-testing	XCTest, unit tests, UI tests, mocking
HealthKit	ios-healthkit	Health data, workouts, permissions
CloudKit	ios-cloudkit	iCloud sync, CKRecord, subscriptions
StoreKit	ios-storekit	Subscriptions, IAP, StoreKit 2
Authentication	ios-authentication	Sign in with Apple, biometrics
Notifications	ios-notifications	Push, local, UNUserNotificationCenter
Maps	ios-mapkit	MapKit, CoreLocation, geocoding
Accessibility	ios-accessibility	VoiceOver, Dynamic Type
Localization	ios-localization	String Catalogs, XLIFF, i18n
Debugging	ios-debugging	Instruments, Time Profiler, LLDB
App Store	ios-app-store	Submission, guidelines, metadata

iOS Project Structure

MyApp/
├── App/
│   └── MyApp.swift              # @main entry point
├── Models/
│   └── *.swift                  # SwiftData/Codable models
├── ViewModels/
│   └── *ViewModel.swift         # ObservableObject classes
├── Views/
│   ├── Main/                    # Primary screens
│   ├── Components/              # Reusable UI
│   └── Settings/                # Settings screens
├── Managers/
│   └── *Manager.swift           # Service layer
├── Extensions/
│   └── *.swift                  # Swift extensions
└── Resources/
    └── Assets.xcassets          # Images, colors

Essential Patterns

MVVM Architecture

// Model
@Model
class Item {
    var name: String
    var createdAt: Date
}

// ViewModel
@MainActor
class ItemViewModel: ObservableObject {
    @Published var items: [Item] = []

    func addItem(name: String) {
        // Business logic
    }
}

// View
struct ItemListView: View {
    @StateObject private var viewModel = ItemViewModel()

    var body: some View {
        List(viewModel.items) { item in
            Text(item.name)
        }
    }
}

Property Wrappers Quick Reference

Wrapper	Use Case
@State	Simple view-local state
@Binding	Two-way connection to parent state
@StateObject	Own a reference type (create once)
@ObservedObject	Reference type from parent
@EnvironmentObject	Shared app-wide state
@Environment	System values (colorScheme, dismiss)
@Query	SwiftData fetch
@AppStorage	UserDefaults persistence

Async/Await Pattern

@MainActor
class DataManager: ObservableObject {
    @Published var data: [Item] = []

    func fetchData() async throws {
        let url = URL(string: "https://api.example.com/items")!
        let (data, _) = try await URLSession.shared.data(from: url)
        self.data = try JSONDecoder().decode([Item].self, from: data)
    }
}

When to Use This Hub vs. Specialized Skills

Use this hub when:

• Starting a new iOS project
• Unsure which area applies to your question
• Need an overview of multiple topics
• Want general best practices

Route to specialized skills when:

• Deep diving into specific frameworks
• Need detailed API knowledge
• Working on complex implementations
• Debugging specific issues

Apple Documentation

• SwiftUI
• SwiftData
• Swift
• iOS & iPadOS
• Human Interface Guidelines