React native architecture: Highlight the new offerings and improvement

In this blog today, ArrowHitech will bring to you all information about one of the solutions for launching native-like apps. It is React native architecture: Highlight the new offerings and improvement. Don’t worry if you have yet to understand it. Because we will start it now. 

React native architecture

What is React native architecture?

React Native is a cross-platform framework. It was released by Facebook in 2015 to become a one-size-fits-all solution for creating native-like apps that operate on multiple platforms. Additionally, it also has a single codebase as their foundation. Although, the initial architecture suited the creators’ requirements. But it also included defects and weaknesses that led to development issues.

Thanks to the strong community support and the expanding popularity of React among web developers, React Native gained achievement. So it became one of the most popular technologies for building cost-effective, scalable, and appealing applications. In order to boost the framework’s market position, Facebook revealed React Native’s re-architecture in 2018. This React native architecture used to make the technology more stable and fix long-standing issues that software engineers have been complaining about for years.

As a result, we collected some information about the React Native architecture to see how it will affect app performance, development process, and its position in the app development market.

Overview of the old react native

React Native Components

React Native is a platform-agnostic solution. It means that React Native is independent of any particular platform. And it may be used on other operating systems. Developers for React Native compose a single code base in JavaScript. And then transcribe the React tree. Therefore, the native infrastructure can interpret it. 

In addition, this React native architecture developed in 2013 as a way to bring together a web-based technology. However, it was sometimes disjoint and slow to iterate. So in 2015, they developed a plan to connect two threads with the use of a Bridge. Therefore, it allows the two sides to interact in a common style.

React native architecture

Moverover, the old React native architecture has three threads running in parallel: JavaScript thread, Native thread, and Shadow thread.

  • JavaScript thread: The complete JavaScript code placed and compiled in this location. The JavaScriptCore runs the bundle when the user launches the program when it packaged for production.
  • Native thread: The native code run in this location. This component is in control of the user interface and guarantees that the app communicates with the JS thread in a seamless manner whenever the app needs to change the UI, run native functions, and so on. All native modules are loaded at startup. So if the user wants to use them, they will always be packaged.
  • Shadow thread: It is the location where your application’s layout calculates. It calculates flexbox layout using Facebook’s Yoga layout engine and then provides that information to the UI thread.

Limitations of the Current one

If you’re searching for a rapid approach to build a scalable app that can operate on several platforms, React native architecture is an excellent option. As a result, you can start with an MVP, attract the first users, and enter the market before your competitors do. For the time being, it is the primary technology for creating cross-platform applications.

The React Native architecture, on the other hand, isn’t great and has to be improved. If you look at the React Native layout, you’ll notice that the framework communicates with native modules using a Bridge. It often causes a queue. Because the two sides are unaware of each other. Therefore, a procedure may lead to performance restrictions that have a negative impact on the user experience.

Therefore, they released regular updates to resolve these and other difficulties with the React Native layout, with the goal of improving developers’ experience. So the most recent major upgrade occurred on July 6, 2020, when the Facebook team introduced a new LogBox, which rebuilt the entire error, warning, and log system. There will be more of these upgrades in the future. 

Another effort to improve debugging was Flipper. It has a number of helpful features that make it easier for developers to identify vulnerabilities and swiftly resolve them. In addition, the team has previously launched Hermes, a JavaScript engine specialized for Android app development. Thus, its update resulted in a faster start-up, smaller program size, and improved performance.

Highlights of Re-architectured React Native in 2020

React native architecture

Solving the problem of React Native’s bridge

To solve some of the existing concerns with React Native’s bridge, Facebook has taken the significant step of redesigning the framework’s design. Enhancements will be made to some of the React native architecture Modules. For example, adding a Type-safety feature. So it improves the safety of JavaScript and Native-side code. Native Modules will be lazy initialized by default for faster startup. In addition, it will assist in improved native interoperability, faster startup, and improved UX of core components, among other things.

Reduce starting time.

Another version will concentrate on a new set of React Native initialization APIs. The new native module system as well as the new renderer will be required. The main goal is to reduce starting time.

The JavaScript Interface (JSI)

Another key improvement that will be useful during native development is the JavaScript Interface (JSI). As a result, the Bridge function will eventually be removed. Moreover, Turbo Modules and Fabric are enabled by JSI. The JS bundle is no longer restricted to JSC and can now use any JavaScript engine. A JS engine, such as V8, can be used instead of the JSC engine.

The following are some of the ways that JSI can help:

  • In loading JS bundle
  • Calling functions between JS and C++, creating JS runtime
  • For creating and accessing JavaScript objects from C++

Also, by using JSI, JS may now hold a reference to C++ Host Objects and execute methods on them. This ensures that both the Native and JavaScript realms are aware of one another. As a result, we can say that total compatibility between all threads will be available. Additionally, React Native developers will be able to work with very huge panels of systems.

This new React native architecture introduces the concept of shared ownership, which allows JS code to interface directly with native code from the JS thread. Therefore, the messages will not need to be converted to JSON to pass through. And any asynchronous issues, congestion, and other difficulties on the bridge will be eliminated.

Giving developers more control over native modules.

Finally, this new React native architecture also gives developers more control over native modules. Because they may use them as needed rather than loading them all at the start. So there is a significant improvement in performance during the startup phase.

Help you business succeed with ArrowHiTech

When it comes to cross-platform development, React Native is an ideal choice because it has already shown great performance and gives developers with a set of tools to create beautiful mobile apps. However, the release of a new architecture is expected to change the development process by resolving existing limits and making it more adaptable and fast. If you’re seeking a complicated solution to build an engaging cross-platform project, let’s check out our blog at ArrowHiTech website

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