Learn SWIFTUI with Real Code Examples
Updated Nov 23, 2025
Installation Setup
Install Xcode from the Mac App Store
Ensure Swift toolchain is up to date
Create SwiftUI project in Xcode: File -> New -> Project -> App -> SwiftUI
Select target platforms (iOS, macOS, etc.)
Run app on simulator or physical device
Environment Setup
Install latest Xcode from Mac App Store
Enable developer mode on Mac
Configure Apple Developer account
Create SwiftUI project in Xcode
Run app on simulator or physical device
Config Files
Info.plist - app metadata and permissions
Assets.xcassets - images, colors, and fonts
App.swift - main entry point and lifecycle
ContentView.swift - main SwiftUI view
Supporting files - LaunchScreen.storyboard, entitlements
Cli Commands
xcodebuild build -scheme MyApp
xcodebuild test -scheme MyApp
swift build
xcodebuild archive
xcodebuild -exportArchive for distribution
Internationalization
Use NSLocalizedString for localization
SwiftUI Text adapts to locale automatically
Supports LTR and RTL languages
Format dates/numbers with DateFormatter/NumberFormatter
Localize images and assets as needed
Accessibility
Use .accessibility modifiers for VoiceOver
Support Dynamic Type and contrast
Test with Accessibility Inspector
Keyboard navigation supported on macOS
Encourage semantic labeling of UI elements
Ui Styling
Use modifiers for styling (padding, background, font)
Adaptive layouts with VStack/HStack/ZStack
Dark Mode support with system colors
Custom components as SwiftUI Views
Animations and transitions built-in
State Management
Use @State for local view state
@Binding for parent-child state propagation
@ObservedObject / @StateObject for shared state
Combine publishers for reactive data
EnvironmentObject for global app state
Data Management
Local storage with UserDefaults or CoreData
Remote data with URLSession or Combine publishers
JSON encoding/decoding using Codable
Integration with CloudKit or third-party APIs
Reactive updates with Combine pipelines