Extracting Reusable Views
Factor UI into composable subviews.
Extracting Reusable Views is a free SwiftUI Academy lesson on CoddyKit — lesson 1 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the SwiftUI Academy learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Why Extract Views?
When a view body grows long and repetitive, it gets hard to read. Pulling pieces into their own views makes code clearer through extraction. 🧩
A View Is Just a Struct
Every SwiftUI view is a small struct conforming to View. Making a new reusable view is as simple as writing another struct.
struct AvatarView: View {
var body: some View { Image("me") }
}Move a Chunk Out
Spot a self-contained block in your body and lift it into its own view. The parent body shrinks and the intent reads at a glance.
Pass Data with Properties
A reusable view takes inputs as plain stored properties. The parent supplies values when it creates the child.
struct Badge: View {
let count: Int
var body: some View { Text("\(count)") }
}Reuse It Everywhere
Once extracted, you can drop the same view in many places with different data. One definition, many uses.
Badge(count: 3)
Badge(count: 12)Default Values Help
Give a property a default so callers can skip it. Common cases stay short while special cases still customize.
struct Tag: View {
var color: Color = .blue
var body: some View { Capsule().fill(color) }
}Keep Views Focused
A good reusable view does one thing. If it juggles many jobs, split it again into smaller, clearer pieces.
Name Views by Role
Name a view for what it represents, like ProfileHeader or PriceTag. A clear name tells readers exactly when to reach for it.
Previews Per View
Each extracted view can have its own preview. You see it in isolation and iterate on it without running the whole app.
#Preview {
Badge(count: 5)
}Smaller Bodies, Faster Edits
Short bodies are easier for the compiler and for you. Extraction trims giant bodies into a tidy composition of named parts.
Compose, Do Not Repeat
Instead of copy-pasting UI, build small views and compose them. Fix a bug once and every screen using it improves.
Quick Check
Quick check on extracting views.
Recap: Lift and Reuse
Pull repeated UI into focused structs with properties for data. You get shorter bodies, clearer names, and UI you fix in one place. 🧠
Frequently asked questions
Is the “Extracting Reusable Views” lesson free?
Yes — the full text of “Extracting Reusable Views” is free to read here on the web, and the SwiftUI Academy course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the SwiftUI Academy course, upgrade to CoddyKit PRO.
What will I learn in “Extracting Reusable Views”?
Factor UI into composable subviews. You practise SwiftUI Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start SwiftUI Academy?
No prior experience is required. SwiftUI Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 1 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Extracting Reusable Views” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this SwiftUI Academy lesson?
Yes. Every SwiftUI Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Extracting Reusable Views
- Custom ViewModifiers
- ButtonStyle & LabelStyle
- ViewBuilder & Generic Containers