SwiftUI reference, built for search intent

SwiftUI Reference for Real Developers

API references, how-to guides, troubleshooting, UI patterns, and comparisons — with runnable code on every page.

CanvaspresentationDetentsmatchedGeometryEffectNavigationStack

ContentView.swift

struct ContentView: View {
    @State private var isExpanded = false

    var body: some View {
        VStack(spacing: 12) {
            Text("SwiftUI.cc")
                .font(.largeTitle.bold())
            Button(isExpanded ? "Collapse" : "Expand") {
                withAnimation(.spring) { isExpanded.toggle() }
            }
        }
    }
}

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Six ways into SwiftUI

Reference

Exact API lookups with runnable code and pitfalls.

Guides

How to get common SwiftUI tasks done, step by step.

Patterns

Copy-paste UI components and full screens.

Fix

Broken behavior, root causes, and minimal fixes.

Compare

X vs Y decisions with side-by-side code.

iOS Versions

What changed in SwiftUI for each iOS release.

Patterns

Featured UI patterns

SwiftUI Custom Tab Bar with Badge

A custom tab bar with animated badge indicators for unread notifications or messages.

SwiftUI Login Screen

A reusable login screen with email and password fields, and a login button.

SwiftUI Settings Screen

A customizable grouped list settings screen with toggle switches and action buttons.

Guides

Popular how-to guides

NavigationBeginner

How to Navigate Between Views in SwiftUI

Learn how to navigate between views in SwiftUI using NavigationLink and NavigationStack.

5 minUpdated 2026-06

How to Pass Data Between Views in SwiftUI

Learn how to pass data between views in SwiftUI using bindings, environment objects, and more.

7 minUpdated 2026-06

UI BasicsBeginner

How to Detect Dark Mode in SwiftUI

Learn how to detect and respond to dark mode in SwiftUI using the color scheme environment value.

5 minUpdated 2026-06

Latest

Latest SwiftUI references

DrawingOther ViewsAdvanced

SwiftUI Canvas Drawing Context

Use Canvas when a visual is easier to draw than compose from many nested views, such as sparklines, badges, waveforms, and lightweight charts.

Canvas GraphicsContext Path

5 min readOpen

DrawingOther ViewsBeginner

SwiftUI Image Resizing and SF Symbols

Resize bitmap images and SF Symbols predictably by separating intrinsic image behavior, content mode, and symbol styling.

Image resizable scaledToFit

4 min readOpen

DrawingOther ViewsIntermediate

SwiftUI Shapes, Path, Trim, and Stroke

Build reusable visual primitives with Shape, Path, stroke, fill, and trim instead of baking every decoration into image assets.

Circle RoundedRectangle Path

5 min readOpen