// 78 articles available
Xcode 27 ships seven official agent skills that capture Apple's own guidance on SwiftUI, testing, and security. Here's how to export them and use the same skills from Claude Code, Codex, or Cursor.
A practical guide to App Tracking Transparency in iOS, covering the Info.plist usage description, the ATTrackingManager API, authorization statuses, and when to actually prompt the user from SwiftUI.
How to set up custom URL schemes and Universal Links in iOS, handle incoming URLs in SwiftUI, and route users to the right screen.
A practical guide to scheduling and handling local notifications in iOS using UNUserNotificationCenter, from permission requests to actionable notification categories.
iOS 18 introduced public APIs for building custom container views that can decompose content into individual subviews. Learn how to use ForEach(subviews:), Group(subviews:), and ContainerValues.
Create interactive buttons for the Control Center using ControlWidgetButton and App Intents in iOS 18.
Add haptic feedback to your SwiftUI views using the sensoryFeedback modifier, with built-in support for success, error, impact, and selection feedback.
A practical guide to SwiftUI animations covering implicit and explicit animations, spring physics, PhaseAnimator for multi-step sequences, and KeyframeAnimator for timeline-based control.
Use ViewThatFits to automatically select the best layout variant based on available space, without writing manual size calculations.
Learn how to use Swift's @Observable macro introduced in iOS 17, understand its advantages over ObservableObject, and migrate your existing code to the modern observation system.
Learn how to create beautiful, interactive charts in SwiftUI using Apple's Swift Charts framework, from simple line charts to customized bar graphs.
Compare @AppStorage, UserDefaults, and SwiftData for persisting data in Swift apps. Learn when each approach makes sense and how to use them effectively.
If your Live Activity renders a grey box instead of your image, the problem is almost certainly the image size. Here's how to fix it.
Use the #Preview macro to preview your Live Activity views directly in Xcode without running the full app.
When SwiftUI previews break, the error messages aren't always helpful. Here's how to debug them, clear caches, and get back to a working state.
Learn different ways to set background colors on SwiftUI views, from simple color fills to gradients and materials.
Learn what the "some" keyword means in Swift, how opaque return types work, and why SwiftUI uses "some View" everywhere.
A practical guide to choosing between SwiftUI and UIKit in 2026, based on your project requirements, team experience, and the current state of both frameworks.
NavigationStack replaced NavigationView in iOS 16 with a more powerful programmatic navigation model. Here's what changed and how to migrate.
Learn how to access photos from the camera roll in SwiftUI, including required permissions, Info.plist configuration, and using PhotosPicker for iOS 16+ or UIImagePickerController for earlier versions.
Learn how to detect when users take screenshots in your SwiftUI app by observing UIApplication notifications.
Learn how to detect when a user successfully shares content using a share sheet in SwiftUI by wrapping UIActivityViewController.
Learn how to prevent users from dismissing modal sheets by swiping down in SwiftUI using interactiveDismissDisabled.
Make your glass elements respond to touch with scaling, shimmer effects, and touch-point illumination using the interactive() modifier and glass button styles.
The cornerRadius modifier is deprecated in iOS 17. Here's how to use clipShape, RoundedRectangle, and the new ConcentricRectangle to round corners the modern way.
The glassEffectID modifier enables glass views to smoothly morph into one another during state changes, creating fluid transitions that feel native to iOS 26.
Learn how to use the allowsHitTesting modifier to make views ignore touches, letting taps pass through to elements behind them.
When you have multiple glass elements that should blend and animate together, GlassEffectContainer coordinates their rendering for seamless visual results.
iOS 26 introduces Liquid Glass, a translucent design language for navigation elements. Here's how to apply the glassEffect modifier to your custom views.
Learn how to round only certain corners of a SwiftUI view using UnevenRoundedRectangle, custom shapes, and clipShape.
Learn how to resize images in SwiftUI using resizable(), frame(), and different content modes like scaledToFit and scaledToFill.
Learn how to show loading spinners in SwiftUI using ProgressView, including customization options and common loading patterns.
Learn how to detect when users shake their device in SwiftUI by bridging to UIKit's motion events and creating a reusable view modifier.
Learn how to properly support dark mode in SwiftUI using semantic colors, adaptive color assets, and color scheme detection.
Learn how to use SF Symbols in your SwiftUI apps, including sizing, coloring, animations, and finding the right symbol for your needs.
Understand the difference between @State and @Binding in SwiftUI, when to use each, and how they work together to manage data flow between views.
Learn how to use ToolbarSpacer to add fixed and flexible spacing between toolbar items in SwiftUI, new in iOS 26.
Learn different approaches for handling optional ObservableObject instances in SwiftUI, from conditional rendering to wrapper patterns.
Failable initializers offer a cleaner alternative to if-let statements when your SwiftUI views depend on optional data.
Learn how to use the presentationDetents modifier to control sheet heights in SwiftUI, creating interactive bottom sheets similar to Apple Maps and Music.
When SwiftUI previews fail with cryptic errors or just spin forever, here's how to diagnose and fix the most common causes.
PermissionKit lets children request parental permission to communicate with new contacts directly through Messages. Here's how to integrate it into your social or messaging app to create safer communication experiences.
Learn how to use the contentShape modifier to expand or customize the tappable area of your SwiftUI views, making buttons and interactive elements more user-friendly.
Safe areas keep your content visible and interactive. Here's how they work in SwiftUI and when you should ignore them.
Learn how to detect app lifecycle changes in SwiftUI, save state when your app enters the background, and restore it when users return, using scenePhase and UIApplication notifications.
When building UIs that stream AI-generated content using Apple's Foundation Models framework, testing intermediate states in Xcode Previews requires some creative workarounds. Here's how to preview partially generated content without calling the actual model.
How to add custom fonts to your SwiftUI app, use system font variants, and ensure your typography scales properly with Dynamic Type.
Understanding the difference between frame alignment and stack alignment is the key to centering views exactly where you want them in SwiftUI.
Learn how to add horizontal padding inside a TextEditor without affecting the scrollbar using the contentMargins modifier introduced in iOS 17.
Learn how to detect when users enable Low Power Mode and automatically reduce animations, refresh rates, and visual effects to preserve battery life in your SwiftUI app.
How to present a second sheet from within an already-presented sheet in SwiftUI.
Learn how to integrate UIKit's App Delegate into your SwiftUI app for handling app lifecycle events and system callbacks.
Learn how to access SwiftUI environment values in View extensions using ViewModifiers for clean, reusable code.
Learn how to create and display QR codes in SwiftUI using Core Image filters.
Learn how to search SF Symbols in Xcode.
Learn how to create a Material Design-style floating action button in SwiftUI that intelligently moves above the keyboard and avoids blocking text input fields.
How to detect when users scroll to the bottom of a list and automatically load more content.
Learn how to add custom toolbar buttons above the keyboard in SwiftUI using the .toolbar modifier with keyboard placement for Done buttons, formatting controls, and more.
Learn how to prevent users from taking screenshots of sensitive content in your SwiftUI app using field-level security and UIKit bridging for financial, medical, or private data protection.
Learn how to create a custom input accessory view that stays above the keyboard, similar to iMessage's input bar.
Learn how to add pull-to-refresh functionality to custom ScrollViews in SwiftUI without using List, perfect for custom layouts and complex scroll content.
Learn how to build skeleton loading screens with animated shimmer effects in SwiftUI using gradients, AnimatableModifier, and reusable view modifiers for a polished loading experience.
Learn how to dump all SwiftUI environment values for debugging purposes.
Learn how to display human-readable relative timestamps like "5 minutes ago" or "yesterday" using RelativeDateTimeFormatter in your SwiftUI apps.
Learn how to implement undo/redo functionality in SwiftUI using UndoManager, including environment injection, registering actions, and creating undo buttons for professional editing experiences.
Learn how to align single and multiline text in SwiftUI.
Learn how to use ScrollViewReader and ScrollViewProxy to scroll a SwiftUI list to a specific item automatically.
Learn how to detect when a context menu is open in SwiftUI.
Learn how to create a WebView/WKWebView with a transparent/clear background in SwiftUI.
Learn how to accept user input in an alert using TextField or SecureField.
Learn how to create a modifier that limits the characters that can be entered in a TextEditor or TextField view in SwiftUI.
Learn the ways to scale a text view's font size to fit its parent view in SwiftUI.
Learn how to use a WKWebView as a quick way to load a GIF from a URL and display it in a SwiftUI view.
Learn how to use DisclosureGroupStyle to create custom DisclosureGroup views in SwiftUI.
Learn how to detect if a SwiftUI app is running in a Xcode Preview.
Learn how to force the navigation bar to show a background color in SwiftUI.
How to use the SwiftUI DisclosureGroup view to create collapsable content.
Learn how to access your app's App Delegate from anywhere in your Swift code, including from SwiftUI views.