iOS - SwiftUI Patterns Modern declarative UI development for iOS, macOS, watchOS, and tvOS applications. Key Concepts State Management Hierarchy SwiftUI provides a hierarchy of property wrappers for different state needs: - @State : Local view state, owned by the view - @Binding : Two-way connection to state owned elsewhere - @StateObject : Creates and owns an ObservableObject - @ObservedObject : References an ObservableObject owned elsewhere - @EnvironmentObject : Dependency injection through the view hierarchy - @Environment : Access to system-provided values Observable Pattern (iOS 17+) Le…