◉ SwiftUI Architecture Topic

State Management

Decide where state should live, how it flows through the application, and when to use State, Binding, Observable, and Environment.

9 Curated resources
Editor’s guidance

Start with local state and move it upward only when multiple features genuinely need access to it.

Library

Recommended resources

Article Editor’s Pick

The Hidden Cost of Unstable SwiftUI Environment Defaults

Learn why unstable default values created with SwiftUI's @Entry macro can trigger unnecessary view updates, and how to define stable environment defaults that improve performance.

Why read: An excellent explanation of a subtle Xcode 27 warning that many developers will overlook. Natalia demonstrates why creating reference types directly in @Entry defaults can invalidate dependent views and shows the recommended patterns for providing stable environment values.
Natalia Panferova Intermediate · 8 min read
Article Editor’s Pick

Building Large-Scale Apps with SwiftUI: A Guide to Modular Architecture

Learn how to structure large SwiftUI applications using modular architecture, the MV pattern, aggregate stores, container/presentation views, navigation, validation, testing, and scalable application boundaries.

Why read: One of the most comprehensive articles on architecting large SwiftUI applications. It challenges common MVVM practices and presents an alternative architecture inspired by Apple's sample code and WWDC sessions.
Mohammad Azam Advanced · 45 min read
Live Event

SwiftUI Architecture Live #1: State Management

Join this free live session to explore practical state management techniques for building maintainable SwiftUI applications.

Why read: A live and interactive discussion focused on where state should live, how it should flow through a SwiftUI application, and how to avoid unnecessary architectural complexity.
Mohammad Azam Intermediate · 1 hour
Article

SwiftUI Is One Graph

A deep dive into SwiftUI's underlying execution model that argues SwiftUI is built around a single demand-driven graph rather than a diffed view tree, combining experimental observations with Apple's published patents.

Why read: If you've ever wondered what actually happens when SwiftUI updates your UI, this is one of the most fascinating deep dives available. It challenges common mental models and provides valuable insight into AttributeGraph and SwiftUI's runtime.
Mihaela Mihaljević Jakić Advanced · 35 min read
Book

The SwiftUI Way

A practical guide to building scalable SwiftUI applications by adopting recommended patterns, avoiding common anti-patterns, and understanding the framework's design principles.

Why read: One of the most authoritative SwiftUI books available. Written by former SwiftUI engineer Natalia Panferova, it focuses on the architectural decisions and trade-offs that matter in production applications.
Natalia Panferova Advanced · Book
Video

SwiftUI Essentials

A comprehensive introduction to SwiftUI that explains its declarative programming model, view composition, state management, animations, adaptive controls, and interoperability with UIKit, AppKit, and other Apple frameworks.

Why read: One of the best starting points for learning SwiftUI. Taylor explains the core mental model behind SwiftUI—declarative views, composition, and state—in a way that helps developers build a strong foundation before exploring more advanced topics.
Apple Beginner · 24 min
Book

Thinking in SwiftUI

Build a mental model of SwiftUI by understanding view trees, state, layout, animations, preferences, environment values, and the framework's core concepts.

Why read: A foundational SwiftUI book that explains how the framework works under the hood rather than simply teaching APIs. Highly recommended for developers who want to understand SwiftUI's design and behavior.
Chris Eidhof and Florian Kugler Intermediate · Book