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Choosing between UIKit and SwiftUI can shape your app’s development timeline, compatibility, and future maintenance. This guide outlines the constraints, compares key aspects in a concise table, explains trade‑offs, and shows a hybrid implementation example.
ObservableObject invalidates every observing view on any @Published change. SwiftUI's @Observable macro tracks which properties a body actually reads, cutting redundant updates—if you can live with the trade-offs.
Learn how to add Sign In with Apple to your iOS app with SwiftUI, AuthenticationServices, and a secure backend. The article walks through the UI, delegate handling, token extraction, and server‑side verification, plus common pitfalls and limits.
Learn how to use Xcode Previews and the #Preview macro to isolate SwiftUI components, inject mock state, and simulate environment traits like Dark Mode for faster UI iteration.
Repetitive validation logic in Swift form models creates drift. A reusable @Validated property wrapper centralizes rules, exposes published error state, and keeps SwiftUI views declarative while making trade-offs explicit.
SwiftUI Previews can collapse the compile-run-wait loop for UI work—if you structure views for them. A worked example with dark mode and Dynamic Type variants, plus the limits to respect.
SwiftUI previews fail in ways the simulator never does because they run a minimal, constrained build of your app. Here's why Apple made that trade-off and how to design views that preview well.
Learn when to use @StateObject instead of @ObservedObject in SwiftUI, see a concrete counter example, understand memory implications, and avoid common pitfalls when building robust view‑model lifecycles.
Stop waiting for the simulator. Learn how to use Xcode's SwiftUI Live Preview to iterate on UI layouts in real-time, test accessibility settings, and handle multiple device sizes simultaneously.
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