bleepingswift

How to set up custom URL schemes and Universal Links in iOS, handle incoming URLs in SwiftUI, and route users to the right screen.

Learn how to create beautiful, interactive charts in SwiftUI using Apple's Swift Charts framework, from simple line charts to customized bar graphs.

Learn how to use Swift's RegexBuilder DSL to create readable, type-safe regular expressions with compile-time checking and strongly-typed captures.

Expose your app's features to Siri, Shortcuts, and Spotlight with App Intents, the Swift-native replacement for SiriKit in iOS 16 and later.

Objective-C supports exception handling with @try/@catch, but the community settled on NSError pointers instead. Here's why.

iPhone Duo reserves parts of its displays for the fold and the front cameras. Learn which regions exist, when system views handle them for you, and how to query ReservedRegion in SwiftUI and UIKit to move custom content out of the way.

Use ViewThatFits to automatically select the best layout variant based on available space, without writing manual size calculations.

On iPhone Duo, toolbars and tab bars move to the side of the screen. Learn when that happens, how to make sure the right items survive, and how to use axisBehavior, visibility priority, and compression behavior in SwiftUI.

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.

Objective-C's lightweight generics let you specify element types for collections like NSArray<NSString *>. They catch type mismatches at compile time and improve Swift bridging.

OSAllocatedUnfairLock wraps os_unfair_lock with a closure-based API that makes it impossible to forget to unlock and keeps the lock's storage alive for as long as you need it.

Use the #Preview macro to preview your Live Activity views directly in Xcode without running the full app.

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.

ArrangementView is a new iOS 27.1 container that lays out a primary and secondary view side by side or layered, and rearranges them around the iPhone Duo fold. Here's how the split and overlay styles work, how to size them, and when not to use one.

Build a @DEFAULTEMPTY property wrapper that automatically defaults missing or null array fields to an empty array when decoding JSON in Swift.

URLProtocol is one of the oldest interception points in Foundation's networking stack. It lets you mock, log, or transform any URLSession request without touching the code that makes the request.

Apps built with the iOS 27 SDK must use the UIKit scene life cycle or they fail to launch. Here's how to tell if your app is affected, add a scene manifest, and move your app delegate code into a scene delegate.

Learn how to access your app's App Delegate from anywhere in your Swift code, including from SwiftUI views.

print is fine for scratch work, but production apps need categories, levels, and privacy redaction. Here is how the Logger API from the os module gives you all of that without much ceremony.

Continuations bridge completion-handler APIs into async/await. The checked variant catches the two ways you can get it wrong, and the unsafe one trusts you completely.