iOS — Swift

Standar pengembangan aplikasi iOS menggunakan Swift dan SwiftUI sebagai pendekatan utama.

Tech Stack

Kategori	Library / Tool	Versi Min.
Language	Swift	6.0+ (strict concurrency)
Min Deployment	iOS 16.0	—
UI Framework	SwiftUI (utama) + UIKit (legacy)	—
Build System	Xcode + SPM (Swift Package Manager)	16+
Navigation	NavigationStack (SwiftUI)	—
DI	Factory / swift-dependencies	Latest
Networking	URLSession + async/await	—
Serialization	Codable (native)	—
Image Loading	Kingfisher / SDWebImage	Latest
Local DB	SwiftData / Core Data	—
State Management	@Observable (Observation framework)	—
Testing	XCTest, Swift Testing	—
CI/CD	Fastlane + GitLab CI	—

Swift 6 strict concurrency

Swift 6 mengaktifkan data race safety secara default — kode yang menyentuh state dari luar @MainActor tanpa proteksi (actor, Sendable) akan gagal compile, bukan cuma warning. Migrasi project lama sebaiknya bertahap: aktifkan SWIFT_STRICT_CONCURRENCY per-modul dulu, bukan langsung project-wide.

Project Structure

AppName/
├── App/
│   ├── AppNameApp.swift           # @main entry point
│   └── ContentView.swift
├── Data/
│   ├── Remote/                    # API services & DTOs
│   ├── Local/                     # SwiftData models / persistence
│   └── Repository/                # Repository implementations
├── Domain/
│   ├── Models/                    # Domain models
│   ├── Repositories/              # Repository protocols
│   └── UseCases/                  # Use cases
├── Presentation/
│   ├── Screens/                   # SwiftUI views (per screen)
│   │   ├── Home/
│   │   │   ├── HomeView.swift
│   │   │   └── HomeViewModel.swift
│   │   └── Profile/
│   ├── Components/                # Reusable UI components
│   └── Navigation/                # Navigation coordinator
├── Core/
│   ├── Extensions/
│   ├── Utilities/
│   └── Constants/
├── Resources/
│   ├── Assets.xcassets
│   └── Localizable.xcstrings
└── Tests/
    ├── UnitTests/
    └── UITests/

Coding Standards

Swift Style Guide

• Ikuti Swift API Design Guidelines.
• Gunakan SwiftLint sebagai linter.
• Maksimum line length: 120 karakter.

SwiftUI Best Practices

// ✅ Good - View terpisah dari logic
struct UserCardView: View {
    let user: UserModel
    let onTap: () -> Void
    
    var body: some View {
        VStack(alignment: .leading, spacing: 8) {
            Text(user.name)
                .font(.headline)
            Text(user.email)
                .font(.subheadline)
                .foregroundStyle(.secondary)
        }
        .padding()
        .onTapGesture(perform: onTap)
    }
}

// ❌ Bad - Fetching data langsung di View
struct UserCardView: View {
    var body: some View {
        // Jangan fetch data di sini!
        let user = APIService.shared.getUser()
        Text(user.name)
    }
}

ViewModel Pattern (Observation Framework)

@MainActor // wajib di Swift 6 strict concurrency — ViewModel selalu diakses dari SwiftUI (main actor)
@Observable
final class UserViewModel {
    private let getUserUseCase: GetUserUseCaseProtocol
    
    var uiState: UserUiState = .idle
    
    init(getUserUseCase: GetUserUseCaseProtocol) {
        self.getUserUseCase = getUserUseCase
    }
    
    func loadUser(id: String) async {
        uiState = .loading
        do {
            let user = try await getUserUseCase.execute(id: id)
            uiState = .success(user)
        } catch {
            uiState = .error(error.localizedDescription)
        }
    }
}

enum UserUiState {
    case idle
    case loading
    case success(User)
    case error(String)
}

Build & Run

# Build via command line
xcodebuild -scheme AppName -sdk iphonesimulator build

# Run unit tests
xcodebuild test -scheme AppName -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 17'

# Run SwiftLint
swiftlint lint --strict

# Archive for distribution
xcodebuild archive -scheme AppName -archivePath build/AppName.xcarchive

Swift Package Manager

Gunakan SPM sebagai dependency manager utama. CocoaPods hanya digunakan jika library tertentu tidak support SPM.