5 SwiftUI Tips That Will Make Your Code 10x Cleaner

After building dozens of iOS apps with SwiftUI, I've collected some tips that dramatically improved my code quality. Here are 5 techniques I use in every project.

1. Use ViewModifiers for Reusable Styles

Instead of repeating the same modifiers, create a custom ViewModifier:

struct PrimaryButtonStyle: ViewModifier {
    func body(content: Content) -> some View {
        content
            .font(.headline)
            .foregroundColor(.white)
            .padding()
            .background(Color.blue)
            .cornerRadius(10)
    }
}

extension View {
    func primaryButtonStyle() -> some View {
        modifier(PrimaryButtonStyle())
    }
}

// Usage
Text("Hello").primaryButtonStyle()

2. Extract Subviews Early

Large views become unreadable fast. Extract components even if used only once:

struct ProfileView: View {
    var body: some View {
        VStack {
            ProfileHeader()
            ProfileStats()
            ProfileActions()
        }
    }
}

3. Use @ViewBuilder for Conditional Content

@ViewBuilder
var content: some View {
    if isLoggedIn {
        HomeView()
    } else {
        LoginView()
    }
}

4. Create Type-Safe Spacing Constants

enum Spacing {
    static let xs: CGFloat = 4
    static let sm: CGFloat = 8
    static let md: CGFloat = 16
    static let lg: CGFloat = 24
}

VStack(spacing: Spacing.md) {
    Text("Title")
}

5. Use Preview Providers Effectively

struct ButtonView_Previews: PreviewProvider {
    static var previews: some View {
        Group {
            ButtonView(title: "Normal")
            ButtonView(title: "Dark")
                .preferredColorScheme(.dark)
        }
    }
}

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What tips do you use? Drop them in the comments!

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