This means that the developer needs to have the Android NDK pre-installed before building their app. As a result, your code will be cleaner and easier to readĪs of Reanimated 3, the library will not ship prebuilt binaries for Android. This way, you can improve your app’s performance and security as well Replace the dependencies that use the old version.If your app relies on the legacy API, here are some steps you can take: Consequently, this meant that projects using the legacy version will not run on the latest version of Reanimated. The reason for this was porting Fabric to the older API meant too much effort. The team has removed support for the deprecated Reanimated 1 API. Later on in the article, we will cover on how to migrate our codebase to use the Fabric architecture. Faster startup: React can now render host components quicker than before. As a result, this brings in improved stability and reduces the chance of a run-time error Type safety assurance: Under the hood, the library uses code generation to check for mismatches between JavaScript components and the host platform’s code.Integration with React Suspense: this makes the data fetching process easier and robust.As a consequence, this led to rendering bugs Before, React would render widgets asynchronously. Enhanced interoperability between host and React views: this means that the compiler can now render UI components in a synchronous manner.It includes many benefits, some of which include: To solve this problem, Facebook built a new renderer called Fabric. Sometimes, the bridge transmitted messages slowly, thus causing performance issues. While this method works as intended, there was one major flaw: the JavaScript and Native components communicated by asynchronous JSON messages via the bridge. Native: the native platform code that runs on the device.The bridge: when the compiler has translated all the code, the bridge translates the JavaScript code into the native (host OS) specific instruction.JavaScript translation layer: this component translates React code into JavaScript.React code: this is the code that the developer writes.We can explain this via the following diagram: Source: Lorenzo SciandraĪs the diagram shows, there are four sections: In the old process, React handled all UI operations via a sequence of cross-bridge steps. As a result, this means that your app is secure and snappy.įor those who don’t know much about Fabric, let’s briefly cover the fundamentals and history.īack in 2018, Facebook started developing a new renderer for the React Native library called Fabric. This brings huge security and performance upgrades. Shifting to FabricĪs of version 3, Reanimated now uses the Fabric architecture under the hood.
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