Native Modules
Native Modules are a programming concept that allows developers to write platform-specific code (e.g., in C, C++, or Objective-C/Swift for iOS, Java/Kotlin for Android) and expose it to higher-level, cross-platform frameworks like React Native or Flutter. They enable access to device-specific features such as camera, sensors, or native APIs that aren't available through standard JavaScript or Dart libraries. This bridges the gap between cross-platform development and native performance or functionality.
Developers should learn Native Modules when building cross-platform mobile apps with frameworks like React Native or Flutter that require access to hardware features or native platform APIs not supported out-of-the-box. For example, integrating a custom Bluetooth library on Android or using iOS-specific ARKit features in a React Native app. It's essential for optimizing performance-critical tasks or leveraging platform-exclusive capabilities while maintaining a mostly shared codebase.