SwiftUI Tutorial

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Building a Complete SwiftUI App

June 02, 2026 • 1 min read

Let's combine everything into a small but real app structure (e.g. a notes or product app).

Recommended structure

  • Models — Codable, Identifiable data types.
  • ViewModels — ObservableObjects holding @Published state and logic.
  • Views — small composable SwiftUI views.
  • Services — networking/persistence helpers.
@main
struct NotesApp: App {
    @StateObject private var store = NotesStore()
    var body: some Scene {
        WindowGroup {
            NavigationStack { NotesListView() }
                .environmentObject(store)
        }
    }
}
Tip: Keep views dumb and small; put logic in view models. This makes the app testable and easy to change.

Summary

A clean SwiftUI app separates Models, ViewModels, Views and Services, shares state via environment objects, and keeps views small. You can now build full SwiftUI apps!