Building Smarter SwiftUI Apps with @Observable

📱 One of the most exciting updates in the Swift world recently has been the introduction of the @Observable macrowith Swift 5.9.

If you've been working with SwiftUI and MVVM for a while, you know the struggle: @Published, ObservableObject, @StateObject, @ObservedObject—powerful, but honestly, it could get messy.

With the new Observation framework, a lot of that boilerplate is gone. And the results? Cleaner code, simpler state management, and a smoother developer experience.

🔍 Real-World Example: Profile Editing Screen

Let’s say we’re building a simple screen where users can update their profile—name, age, and whether they have a premium subscription.

🧱 Model:

@Observable
class UserProfile {
    var name: String = "Guest"
    var age: Int = 25
    var isPremium: Bool = false
}        

🎨 View:

struct ProfileView: View {
    @State var profile = UserProfile()

    var body: some View {
        Form {
            TextField("Name", text: $profile.name)
            Stepper("Age: \(profile.age)", value: $profile.age, in: 18...100)
            Toggle("Premium Member", isOn: $profile.isPremium)
        }
        .navigationTitle("Profile")
    }
}        

✅ What’s Improved?

• No need for @Published, ObservableObject, or @StateObject—@Observable handles everything behind the scenes.
• You get clean, reactive bindings to SwiftUI with much less code.
• It’s easier to test, onboard new devs, and maintain the architecture.

We recently started integrating this pattern into one of our production apps, and the impact was immediate:

• Onboarding junior developers became faster
• Code readability improved significantly
• Debugging became much easier with fewer moving parts

#Swift #SwiftUI #iOSDevelopment #Observable #Swift5_9 #MobileArchitecture #TechLeadership #MVVM