iOS developers often rely on samples that don’t mirror real-world scale, while Kotlin provides proven architectural guidance. Here’s how to translate those ideas into SwiftUI for apps that scale.

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iOS apps often lack the clear architectural guidance that Android developers enjoy through Google's official patterns and sample apps like Now in Android. This piece translates proven Kotlin/Android patterns into Swift/SwiftUI: using a Loadable<T> enum to eliminate impossible states, routing all ViewModel mutations through a single perform() method for centralized logging/testing/analytics, separating Screen (owns ViewModel) from Content (pure UI rendering) to enable reliable Xcode Previews and reusability, and implementing reactive repositories as a single source of truth so data changes propagate automatically to all observing ViewModels. The full layered architecture (View → ViewModel → Repository → RemoteSource → API) mirrors Android's unidirectional data flow, making each layer independently testable and mockable.

Borrowing from Kotlin/Android to Architect Scalable iOS Apps in SwiftUI

The Problem with Traditional iOS ViewModels