Swift Academy · Lesson

VStack, HStack and ZStack Fundamentals

Stacking views vertically, horizontally and depth-wise with spacing and alignment.

Lesson 1 of 412 steps

VStack, HStack and ZStack Fundamentals is a free Swift Academy lesson on CoddyKit. This is lesson 1 of 4. Any 3 lessons of this learning path are free to read in full — after that, CoddyKit PRO unlocks every lesson, plus hands-on practice with a built-in code editor and a 24/7 AI tutor. It is part of the Swift Academy learning path, and your progress syncs across the web and the CoddyKit app. The Swift Academy course includes 4 lessons in total.

Welcome

`VStack`, `HStack`, and `ZStack` are the three fundamental layout containers in SwiftUI. Understanding them is essential for building any interface.

VStack — Vertical

```swift VStack(alignment: .leading, spacing: 8) { Text("Title").font(.title) Text("Subtitle").foregroundColor(.secondary) Button("Action") {} } ```

HStack — Horizontal

```swift HStack(spacing: 16) { Image(systemName: "star") Text("Favourite") Spacer() Text("4.9") } ```

ZStack — Depth

```swift ZStack(alignment: .bottomTrailing) { Image("background") Text("Overlay") .padding() .background(Color.black.opacity(0.5)) } ```

Alignment Options

VStack alignment: `.leading`, `.center`, `.trailing` HStack alignment: `.top`, `.center`, `.bottom`, `.firstTextBaseline` ZStack alignment: any `Alignment` combining horizontal+vertical

Spacing Parameter

```swift VStack(spacing: 0) { // no space between views Divider() Text("A") Divider() Text("B") } ```

Nesting Stacks

```swift VStack { HStack { Image("icon"); Text("Name") } Text("Description") } ``` Stacks can be arbitrarily nested to achieve any layout.

Spacer

```swift HStack { Text("Left") Spacer() // pushes views to edges Text("Right") } ```

Divider

```swift VStack { Text("Above") Divider() // horizontal line Text("Below") } ```

Performance: Group vs Stack

For more than 10 children, wrap in `Group` or switch to `LazyVStack` to avoid view tree limits: ```swift ScrollView { LazyVStack { ForEach(items) { Text($0.name) } } } ```

Quick Check

Which stack places views along the depth axis (front-to-back)?

Answer it in the interactive lesson

Recap

Key takeaways: • `VStack` — vertical; `HStack` — horizontal; `ZStack` — depth • Use `alignment:` and `spacing:` parameters • `Spacer()` pushes neighbours to edges • Nest stacks for complex layouts • Use `LazyVStack`/`LazyHStack` for large lists Next: LazyVGrid and LazyHGrid.

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Frequently Asked Questions

Is the “VStack, HStack and ZStack Fundamentals” lesson free?

Yes — any 3 lessons of the Swift Academy learning path, including “VStack, HStack and ZStack Fundamentals”, are free to read in full here on the web. After that, CoddyKit PRO unlocks every lesson, plus interactive practice with a built-in code editor and a 24/7 AI tutor. The Swift Academy course includes 4 lessons in total.

What will I learn in “VStack, HStack and ZStack Fundamentals”?

Stacking views vertically, horizontally and depth-wise with spacing and alignment. You practise Swift 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 Swift Academy?

No prior experience is required. Swift Academy on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 1 of 4.

How long does the “VStack, HStack and ZStack Fundamentals” 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 Swift Academy lesson?

Yes. Every Swift 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.

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