Learn SWIFTUI with Real Code Examples
Updated Nov 23, 2025
Architecture
Declarative UI: UI reflects app state automatically
State-driven architecture with property wrappers
Integration with Swift Combine for reactive updates
Composes views via Swift structs
Event-driven with bindings and observable objects
Rendering Model
SwiftUI maps state to native views
Views automatically re-render on state changes
Modifiers adjust layout, style, and behavior
Event-driven UI with gestures and actions
Bridges to UIKit/AppKit for legacy or complex components
Architectural Patterns
Declarative and reactive UI architecture
State-driven view rendering
Composable views for modular UI
Integration with Combine for asynchronous data flow
Separation of model, view, and view-model patterns encouraged
Real World Architectures
iOS banking or finance apps
macOS productivity tools
WatchOS fitness apps
tvOS streaming applications
Data-driven consumer apps with reactive UI
Design Principles
Declarative UI driven by app state
Reactive data binding using property wrappers
Cross-Apple-platform support with single codebase
Integration with Combine and Swift ecosystem
Live previews for rapid development
Scalability Guide
Modularize views for large apps
Use lazy stacks and lists
Optimize image and asset usage
Leverage Combine for async data handling
Test across device types and screen sizes
Migration Guide
Update Xcode and Swift version
Replace deprecated APIs and modifiers
Use new SwiftUI components in place of UIKit where possible
Test on latest OS versions
Refactor state management for new SwiftUI features