
This comprehensive guide explores the intricacies of building native iOS components in React Native, covering the legacy architecture. Readers will learn to identify scenarios requiring native integration, such as accessing platform-specific APIs, optimizing performance-critical operations, and leveraging existing native libraries. The series offers a deep dive into the fundamental differences between the old asynchronous bridge and the new JSI-powered architecture, providing practical, step-by-step instructions for setting up and implementing native modules and UI components. Key concepts like Objective-C bridging, Swift implementation, and essential macros (RCT_EXPORT_MODULE, RCT_EXPORT_VIEW_PROPERTY) are explained in detail, alongside advanced communication patterns including callbacks, promises, and event emitters.


