A comprehensive guide to local receipt validation for iOS in Swift, with seven tutorials and a GitHub repository.
A guide to parsing and decoding Apple receipts in Swift, extracting metadata for validation.
Guide on verifying receipt signatures in Swift using PKCS #7 containers and Apple's root certificate.
An in-depth look at Swift 4's Codable protocol, exploring its features for automatic serialization and comparing it to older Apple serialization methods.
Guide on configuring NSPersistentContainer to use an existing SQLite store in Core Data, with code examples.
Guide on configuring NSPersistentContainer to use an existing SQLite store in Core Data.
A Swift tutorial on implementing the Core Data stack using NSPersistentContainer for iOS 10+.
A tutorial on implementing a drop shadow effect on a UIVisualEffectView in iOS, similar to the style used in the iOS Maps app.
Explains why Core Data model attribute types must match NSManagedObject property types to avoid runtime crashes.
A guide to fixing React Native's 'No bundle url present' error by deleting the iOS build folder.
A guide to fixing React Native's 'No bundle url present' error by deleting the iOS build folder.
Learn how to safely unwrap multiple optionals in Swift using a single if-let statement with clear code examples.
Tutorial on creating a Core Data stack with backwards compatibility for iOS versions before iOS 10 using Swift.
A Swift tip on using URL extensions to access a user's documents directory, keeping code DRY and centralized.
A course on Core Data fundamentals with Swift, covering data modeling, persistence, and app architecture.
A guide to Core Data fundamentals with Swift, covering data modeling, persistence, and app architecture.
Troubleshooting guide for common iOS and Android native build errors encountered when using Cordova plugins, focusing on dependency conflicts.
Needle v1.0.0 released with a new native Objective-C agent, adding iOS 10 support and replacing old dependencies.
Lyft's iOS team shares their experience using Interface Builder at scale, addressing common criticisms and sharing custom tools for a better workflow.
A developer shares key insights and architectural lessons learned from adopting reactive programming, specifically with RxSwift, for iOS and Mac app development.
