Building Cross-Platform Mobile Apps With React Native


The choice of platform is just one of many choices that must be made while creating an app. The profitability of your product and, eventually, your entire business depends on your choice of framework. Before making this choice, you must consider prices, a timetable, needs, etc. It might be challenging to cut through the crowd and select the best solution to address your company objectives with the number of platforms and frameworks offered. Each application has a unique set of objectives and demands, which will eventually decide the most suitable development option.

In recent years, React Native has emerged as an important tool preferred for creating applications. However, it is not surprising considering that Facebook, the company that created it, has been active in the market for over a decade and has over two billion consumers on its platforms.

The React Native framework is becoming increasingly popular, indicating the immense expansion ahead for the mobile app development industry. According to Appbrain data, the mobile app development market is active and increasing, with over 33,000 apps employing platform features and over 42 billion downloads globally. React Native, a framework for creating mobile apps, has accomplished a significant goal with this.

What is Hybrid Mobile App Development?

The base of the hybrid app development process is creating an app utilizing one project that may address all required platforms, including iOS, Windows, Android, etc.

Due to the ability to construct a single code base that can be utilized for an application on multiple platforms, hybrid software is particularly encouraging to developers. Developers just need to create the code once. They can subsequently reuse it when designing the application for any other intended platform, except for a few features of the application (the key example being the UI, which customers want to be personalized depending on their platform of preference).

Hybrid applications are in high demand because They are simpler to create than native programs, and the source code may be used to increase a company's presence across other platforms, such as the web. Companies are particularly drawn to hybrid mobile app development because it allows them to simultaneously enter the smartphone marketplace on every significant platform. Because it combines both native and web technologies, this approach is called a hybrid. It occurs when a native application covers the web technologies used to create the program's core (HTML, CSS, and JavaScript). These programs can get to all of the functionality of the mobile device through the installation of plugins.

An application created with CSS, JavaScript, and HTML essentially forms the basis of a hybrid mobile application. But the app isn't displayed on the customer's website; rather, it runs within a native program with an integrated browser, which is virtually hidden from the user.

Overview of React Native Framework

An open-source framework for creating mobile apps called React Native was created by Facebook in 2015 and made use of the JavaScript language and an informative development framework. It greatly decreases loading time and offers a fast and smooth user experience. When compared to native apps, React Native app development is quicker and less expensive while yet offering high-quality features.

In today's modern world, it is widely recognized that leading companies prefer utilizing React Native components for developing Android and iOS mobile applications. This framework has become a favorite among developers due to its efficiency. By using React Native, companies can save time and resources as they no longer need to deploy applications separately for different platforms or employ multiple teams of developers. Instead, they may create an app and have the developer code work smoothly across all platforms with little to no code modification.

How Does React Native Operate?

JavaScript and Native code (Java/Kotlin for Android and Objective-C/Swift for iOS) are two independent components that React Native aims to merge and make function together. JavaScript requires a virtual computer to run on, whereas native code is performed instantly on the device.

The JavaScript code gets compiled and executed by the JavaScriptCore C++ engine, a built-in feature of iOS devices. Because Android smartphones lack a native JS engine, JavaScriptCore has been included with the React Native framework.

They are unable to communicate with each other openly as Java/Obj-C are two separate programming languages. However, they may communicate more effectively using JSON, a type of data that both parties can comprehend. A group of software tools known as Bridge manages this connection.

Benefits of Using React Native for Mobile App Development:

Now that you are familiar with the fundamentals of React Native, let's discuss its benefits and why companies need to adopt it when creating mobile applications.

1. Reusability Of Code

The primary benefit of React Native is that programmers don't have to write separate programs for Android and iOS. There is a 90% reuse of code rate across the two platforms, greatly enhancing the productivity and speed of development. You benefit from a quicker time-to-market and need fewer resources for maintenance as a result.

2. Native Appearance and Feel

Native development features and React Native features have a 1:1 linkage. It uses JavaScript and the native user interface's components to give the application a native-like look. Additionally, because the app's base is similar for iOS and Android, the app's design and user experience are similar between the two operating systems.

3. Live Reload

You can view updates as they happen and interact with them right away due to React Native's live reload ability. When the app is loaded, you can perform code changes that will automatically cause the reload of the app. Reloading a specific region of change is another option for speeding up compilation.

4. UI Focused

To create quick and adaptable app interfaces, React Native employs the React JavaScript framework. It employs a system of components and has excellent rendering capabilities, making constructing both straightforward and sophisticated user interface designs possible.

5. Cost-Efficiency

React Native allows for code reuse, cutting development expenses by up to 40%. The app's development does not require hiring separate iOS and Android dev teams. Additionally, React Native has a lot of predefined or built-in elements that speed up development even more.

6. Third-Party Plugins

Given how expensive it may be to create an app from the beginning, React Native provides a range of third-party plugin choices, combining native and JavaScript-based libraries. Certain web view functionalities are no longer required due to the third-party plugins, which also improve the app's efficiency and usefulness.

7. Effective community support

React developers have unlimited access to all necessary documentation since React Native represents a freely available technology. Additionally, it allows people to contribute whenever they choose freely. Additionally, one of the strongest advantages of using React is the accessibility of programmers who guide new users through forum conversations. Those just starting with React can also examine the code of active projects and offer helpful feedback. Overall, it offers the developer team a very exceptional and cooperative experience.

Tips for Effective Performance in a React Native App

Users spend most of their time on mobile apps, with the web accounting for only roughly 13 percent of their time. Revenue from mobile applications is estimated to reach $935 billion by 2023, which reflects this trend. While the Apple App Store has 2.22 million apps readily available, the Google Play Store has an extensive range of 2.87 million apps that may be downloaded.

React Native developers need to be sure their apps are optimized for smooth speed and ease of use to guarantee a wonderful user experience. Writing clear, effective code while utilizing the right tools and libraries is necessary to achieve optimum app performance. Developers may use these best practices to produce mobile apps with excellent functionality and a pleasing user experience.

• Use the Proper Navigation Techniques

React Native apps can occasionally be challenging for developers to use. Sometimes, navigational difficulties keep programs from providing consumers with a perfect experience. Several navigational issues were previously fixed due to a vibrant and substantial React Native developer group.

However, you could encounter certain issues that require independent resolution. iOS Navigator, React Navigation, Navigator, and Navigation Experiment are only a few alternatives for these issues. Despite the size, developers use React Navigation for many projects. IOS navigation problems may be resolved only with iOS Navigator, which is only useful for developing prototypes and small-scale applications.

• Do Not Render Large Lists Using The Scroll View

There are two methods to use the FlatList and ScrollView features in React Native to show the contents of scrollable lists. ScrollView makes it easy to present a scrollable list, yet it also has the potential to negatively impact how quickly the React Native app runs in general. This is particularly true if the list has a lot of entries. Experts advise using FlatList to list things to resolve this problem.

• Avoid Using Inline Functions As Objects

It is preferable to avoid supplying a function inline when providing it as a property to a module. Sometimes the parent object generates a new reference. A new function is generated. In other words, although the objects are unaffected, the child object re-renders. However, a solution is there to address the problem. The function should ideally be declared as a class method or used as a function within a functional part. Doing this may eliminate any chance of losing references among re-renders.

• Choose To Resize And Scale Your Images

When enhancing the efficiency of your React Native app, be sure to concentrate on picture optimization, particularly graphical content. It may result in excessive memory utilization on a device if you display several photos in your React Native app.

Now let's talk about how crucial it is to properly optimize photographs for size and quality. If not done correctly, memory overflow might cause your program to crash. Using the PNG rather than the JPG format and utilizing lower-quality photos are some of the best image techniques for React Native apps. Additionally, you may use WEBP format to reduce the size of your photos' binary files on iOS and Android.

• Cache Pictures

React Native is mostly made up of images. This section is used to show photos. However, it fails to provide a ready-made fix for several problems, such as rendering many images on one display, cache loading speed problems, poor overall performance of the application, image flickering, etc. But these problems can still be resolved in certain ways. One method is undoubtedly the use of external libraries like react-native-fast-image. This library greatly benefits Android and iOS apps.

• Avoid Making Unnecessary Renders

There is a useful optimization method for preventing unnecessary renderings on the primary thread of React Native apps. You can achieve that easily by utilizing React.memo() function for memory management. In other words, if a component gets a similar data group multiple times, it will incorporate the previously stored data and render the JSX view that the functional element has returned. As a result, rendering time is decreased.


Among several frameworks for mobile app development, React Native is a well-known framework for creating cross-platform and hybrid applications. It has several benefits, such as being simple to operate and providing cross-platform functionality without sacrificing Native features. In React Native, there is a lot of API interaction between native components. After a few years of its release, React Native has established itself as a trendy choice among developers working on mobile applications.

Apps created using React Native function are almost exactly like those created with native code for the corresponding iOS or Android platform. The programming language was created particularly for mobile devices, contributing to its speed. It is a well-structured framework for programmers, a profitable technology for companies, and a helpful user alternative. Therefore, you should use React Native mobile app development to create a cross-platform mobile application

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