JAVA NATIVE ACCESS HOW TO

In the following sections we will walk you through guides on how to build a native module directly within a React Native application. Check out the Setting Up a Native Module as a NPM Package guide if you are interested in doing so. However the native module you build in the following guide can be distributed as an NPM package. This guide will first walk you through implementing a native module directly within a React Native application. As a NPM package that can be installed as a dependency by your/other React Native applications.Directly within your React Native application’s iOS/Android projects.There are two ways to write a native module for your React Native application: If React Native doesn't export a native API that your JS app needs you should be able to export it yourself! Native Module Setup While we don't expect this feature to be part of the usual development process, it is essential that it exists. The NativeModule system exposes instances of Java/Objective-C/C++ (native) classes to JavaScript (JS) as JS objects, thereby allowing you to execute arbitrary native code from within JS. Maybe you want to reuse some existing Objective-C, Swift, Java or C++ libraries without having to reimplement it in JavaScript, or write some high performance, multi-threaded code for things like image processing. Sometimes a React Native app needs to access a native platform API that is not available by default in JavaScript, for example the native APIs to access Apple or Google Pay. The New Architecture uses Turbo Native Module and Fabric Native Components to achieve similar results. They will be deprecated in the future when the New Architecture will be stable. Native Module and Native Components are our stable technologies used by the legacy architecture.

Java native access