native-module-helper

To create a React Native native module, you need to plan the TypeScript interface, implement platform-specific code in Objective-C or Swift for iOS and Java or Kotlin for Android, and then link the files. This process supports integrating native SDKs and platform-specific APIs.

You need a custom native module when integrating third-party SDKs requiring native code access, optimizing performance-critical code, or accessing platform-specific device sensor APIs not exposed to JavaScript.

Yes, it supports both the legacy bridge and the newer Turbo Modules architectures, allowing you to implement custom React Native modules compatible with older and newer React Native setups.

Event emission from native code back to JavaScript is facilitated through established patterns in both legacy bridge and Turbo Modules architectures, enabling seamless communication from iOS and Android platforms to your React Native application.

Platform-specific implementation uses Objective-C and Swift for iOS, alongside Java and Kotlin for Android. Threading and data conversion patterns are applied within these languages to bridge native code with JavaScript interfaces.

While bridging JS and native code allows SDK integration and API access, limitations include managing threading complexities and data conversion between JavaScript and native environments, requiring careful interface planning for both iOS and Android platforms.