Swiftui Property Wrappers Explained Through A Real Feed App

Learn SwiftUI property wrappers in the context of MVVM, real-world architecture, dependency injection, and async network

What you'll learn

Apply the MVVM design pattern to structure SwiftUI apps.

Use property wrappers like @State and @ObservedObject appropriately.

Build a network service using async/await and retry logic.

Parse RSS and Atom feeds into Swift model objects.

Inject dependencies into view models using initializers.

Manage app state using @Published and ObservableObject.

Control view-local UI state with @State.

Update views based on loading, success, or failure states.

Handle concurrency and UI updates using @MainActor.

Follow best practices for clean, scalable SwiftUI architecture.

Requirements

Familiarity with basic Swift syntax and data types.

Understanding of functions, structs, and classes in Swift.

Basic knowledge of SwiftUI views and layout.

Experience using Xcode to build and run iOS apps.

Comfort with using Swift optionals and control flow.

Awareness of how to use property wrappers like @State.

Ability to read and write simple asynchronous Swift code.

Understanding of what MVVM stands for (basic level).

Some experience working with REST APIs or URLSession.

Access to a Mac with Xcode 14 or later installed.

Description

Most tutorials and courses explain SwiftUI property wrappers in isolation—@State, @Published, @ObservedObject—but never show you how they actually work together in a real app. That’s where this course comes in.This course is designed for iOS developers who are confused by property wrappers and overwhelmed by vague explanations. We focus on understanding why each property wrapper exists and how it's intended to be used inside classes, structs, and most importantly, within the MVVM design pattern. You'll build a fully functional RSS feed app from scratch, learning how to structure your code with a clean separation of concerns and how to inject dependencies into your view models properly.Along the way, you’ll implement:@State, @Published, @ObservedObject, and @StateObject in contextA networking layer using async/await and retry logicFeed parsing with FeedKitA SwiftUI UI driven by real-time view model updatesDependency injection for testability and clarityProper use of @MainActor to handle UI updates safelyThis course is practical, focused, and built for self-taught developers and beginners who want to move beyond copy-paste coding and really understand how SwiftUI apps are built. If you’ve been struggling to make sense of property wrappers, this course will give you the clarity and confidence to use them correctly—and build better apps because of it.

Overview

Section 1: Course Introduction

Lecture 1 Video Introduction

Lecture 2 Introduction

Section 2: Networking Service Explained

Lecture 3 Walk Through the Networking Service Code

Lecture 4 Networking Service in iOS

Section 3: Feed Parser Service

Lecture 5 Walk through the Networking Service Parser

Lecture 6 Purpose of a FeedParser Service

Section 4: Understanding the ViewModel

Lecture 7 Walk through of the View Model

Lecture 8 Explain @MainActor for the ViewModel

Lecture 9 Explain Observable Object in the View Model

Lecture 10 Explain @Published in the View Model

Section 5: Explain the View

Lecture 11 Walk through the View Code.

Lecture 12 Modifying @State and the initializers

Lecture 13 Explain @State in the View

Lecture 14 Explain @StateObject and @ObservedObject.

Lecture 15 Explain the initializer and dependancy injection.

Lecture 16 Explain when '@StateObject' comes into play.

Lecture 17 WARNING About Using @StateObject inside the view.

Swift developers confused by how and when to use property wrappers.,Learners frustrated by tutorials that explain syntax but not real-world usage.,iOS developers who want to understand property wrappers through MVVM.,Beginners struggling to connect @State, @ObservedObject, and @Published to actual app structure.,Developers unsure why some property wrappers work in classes and others in structs.,Students who’ve learned SwiftUI basics but feel lost when building full apps.,Programmers tired of abstract explanations with no architectural context.,Self-taught iOS learners looking to replace guesswork with clarity.,Developers who want a practical project to make property wrappers finally “click.”,Anyone who believes understanding property wrappers requires understanding design patterns.