SwiftUI Containers Reference

Stacks, grids, outlines, and scroll enhancements. iOS 14 through iOS 26.

Sources: WWDC 2020-10031, 2022-10056, 2023-10148, 2024-10144, 2025-256

Quick Decision

Part 1: Stacks

VStack, HStack, ZStack

VStack(alignment: .leading, spacing: 12) {
    Text("Title")
    Text("Subtitle")
}

HStack(alignment: .top, spacing: 8) {
    Image(systemName: "star")
    Text("Rating")
}

ZStack(alignment: .bottomTrailing) {
    Image("photo")
    Badge()
}

ZStack alignments: .center (default), .top, .bottom, .leading, .trailing, .topLeading, .topTrailing, .bottomLeading, .bottomTrailing

Spacer

HStack {
    Text("Left")
    Spacer()
    Text("Right")
}

Spacer(minLength: 20)  // Minimum size

LazyVStack, LazyHStack (iOS 14+)

Render children only when visible. Use inside ScrollView.

ScrollView {
    LazyVStack(spacing: 0) {
        ForEach(items) { item in
            ItemRow(item: item)
        }
    }
}

Pinned Section Headers

ScrollView {
    LazyVStack(pinnedViews: [.sectionHeaders]) {
        ForEach(sections) { section in
            Section(header: SectionHeader(section)) {
                ForEach(section.items) { item in
                    ItemRow(item: item)
                }
            }
        }
    }
}

Part 2: Grids

Grid (iOS 16+)

Non-lazy grid with precise alignment. Loads all views at once.

Grid(alignment: .leading, horizontalSpacing: 10, verticalSpacing: 10) {
    GridRow {
        Text("Name")
        TextField("Enter name", text: $name)
    }
    GridRow {
        Text("Email")
        TextField("Enter email", text: $email)
    }
}

Modifiers:

• gridCellColumns(_:) — Span multiple columns
• gridColumnAlignment(_:) — Override column alignment

Grid {
    GridRow {
        Text("Header").gridCellColumns(2)
    }
    GridRow {
        Text("Left")
        Text("Right").gridColumnAlignment(.trailing)
    }
}

LazyVGrid (iOS 14+)

Vertical-scrolling grid. Define columns; rows grow unbounded.

let columns = [
    GridItem(.flexible()),
    GridItem(.flexible()),
    GridItem(.flexible())
]

ScrollView {
    LazyVGrid(columns: columns, spacing: 16) {
        ForEach(items) { item in
            ItemCard(item: item)
        }
    }
}

LazyHGrid (iOS 14+)

Horizontal-scrolling grid. Define rows; columns grow unbounded.

let rows = [GridItem(.fixed(100)), GridItem(.fixed(100))]

ScrollView(.horizontal) {
    LazyHGrid(rows: rows, spacing: 16) {
        ForEach(items) { item in
            ItemCard(item: item)
        }
    }
}

GridItem.Size

// Adaptive: responsive column count
let columns = [GridItem(.adaptive(minimum: 150))]

Part 3: Outlines

List with Hierarchical Data (iOS 14+)

struct FileItem: Identifiable {
    let id = UUID()
    var name: String
    var children: [FileItem]?  // nil = leaf
}

List(files, children: \.children) { file in
    Label(file.name, systemImage: file.children != nil ? "folder" : "doc")
}
.listStyle(.sidebar)

OutlineGroup (iOS 14+)

For custom hierarchical layouts outside List.

List {
    ForEach(canvases) { canvas in
        Section(header: Text(canvas.name)) {
            OutlineGroup(canvas.graphics, children: \.children) { graphic in
how to use axiom-swiftui-containers-ref
CursorClaude CodeClineCodexWindsurfGooseGitHub CopilotVS CodeGemini CLIKiloOpencodeKimi CLIRoo ClineAiderContinueZedBolt.newLovablev0Replit AgentSweepSmol DeveloperDevinCavemanAmpAntigravity
How to use axiom-swiftui-containers-ref on Cursor
AI-first code editor with Composer
1
Prerequisites
Before installing skills in Cursor, ensure your development environment meets these requirements:
›Cursor installed and configured on your development machine
›Node.js version 16.0+ with npm package manager (verify with node --version)
›Active project directory or workspace where you want to add axiom-swiftui-containers-ref
2
Execute installation command
Execute the skills CLI command in your project's root directory to begin installation:
$npx skills add https://github.com/charleswiltgen/axiom --skill axiom-swiftui-containers-refcopy
The skills CLI fetches axiom-swiftui-containers-ref from GitHub repository charleswiltgen/axiom and configures it for Cursor.
3
Select Cursor when prompted
The CLI will show a list of available agents. Use arrow keys to navigate and space to select Cursor:
◆ Which agents do you want to install to?
│
│ ── Universal (.agents/skills) ── always included ────
│   • Amp
│   • Antigravity
│   • Cline
│   • Codex
│ ●Cursor(selected)
│   • Cursor
│   • Windsurf
4
Verify installation
Confirm successful installation by checking the skill directory location:
.cursor/skills/axiom-swiftui-containers-ref
Reload or restart Cursor to activate axiom-swiftui-containers-ref. Access the skill through slash commands (e.g., /axiom-swiftui-containers-ref) or your agent's skill management interface.
⚠
Security & Verification Notice
We perform automated surface-level scans (Gen AI Scanner, Socket, Snyk) during installation. These checks detect common vulnerabilities but do not guarantee complete security. Always review skill source code and verify the publisher's reputation before production use.
Skills execute code in your development environment. Always verify the publisher's identity, review recent commits, and test in isolated environments before production deployment.
Additional Resources
›View source code on GitHub›Skills CLI documentation›Learn more about Cursor›What are agent skills?