A QUICK SUMMARY – FOR THE BUSY ONES
Navigation performance is vital for user experience. React Native offers multiple navigation methods, such as Navigator iOS, Navigator, Navigation Experiment, and React Navigation. While improvements have been made, some navigation issues persist, affecting app usability and smooth transitions between screens.
App launch speed is critical. Slow launch times may result from excessive dependencies and the use of slow components. Using fast, high-performance components and reducing dependencies can enhance launch speed. Eliminating memory-intensive elements like Object.Finalize can also help.
Memory leaks, particularly in Android apps, can stem from background processes. Employing efficient scrolling lists like SectionList, FlatList, or VirtualList can mitigate memory leakage issues.
React Native apps tend to be larger than native apps, especially with numerous third-party libraries and native components. Reducing app size involves minimizing third-party library usage, optimizing resources like images, and compressing data.
In the main section of this article, we explain more about solving these React Native app performance issues.
Keep on reading to learn more about these strategies.
TABLE OF CONTENTS
In the age of the Internet, we want everything instantly. A high-performance app can greatly satisfy your customers and can take your business to the next level, while a slow app can kill it.
If you are experienced with mobile apps, you probably hear a lot about React Native performance.
In this article, you’ll see what kind of app speed you can get with React Native, and how to deal with the performance issues you may face on the way.
One of the most interesting benefits of React Native is that it provides near-native performance.
Although React Native isn’t a mobile app native language, it lets you achieve a performance similar to a truly native app, with the benefits of a framework – increased productivity, faster, easier development.
It allows you to optimize your app’s performance by including native code in some areas of your app. That’s how the Facebook app was built.
Although the official site claims that React Native provides native performance, that’s not necessarily true. In order to build native apps that give a native performance, you must use native languages such as Java, Swift, or Objective-C. Java is used for Android development while Swift and Objective-C are used for iOS development.
Although React Native performance is excellent, it still has some issues. For example, the React Native team has been working on addressing problems related to navigation and fixed many of them, but there are still some issues left that need to be fixed.
Just like the overall performance of an app, navigational performance is important as well. If the navigational performance of an app isn’t smooth, it will be hard for the user to access various features of the app. Difficult navigation from one screen to another could prevent users from using your interface.
React Native provides you with, at least, 4 different ways to build a navigation:
You can also try React Native Navigation. It’s a great navigation tool developed by Wix.
Slow app launch is another issue of React Native apps. If your app opens too slowly, you probably have too many dependencies in your app and you’re using slow components. Try to use fast, high-performance components and decrease the number of dependencies in your app.
For example, the Object.Finalize element can increase the app launch time. Use of too many finalizers can result in out-of-memory errors.
Memory leakage, a React Native performance issue, may occur due to unnecessary processes that run in the background in an Android app. Try using scrolling lists like SectionList, FlatList, or VirtualList, instead of ListView.
The size of React Native apps is usually larger than native apps. The app size will increase greatly if you use too many third-party libraries and native components.
To decrease the app size, you may try using fewer third-party libraries and components. You could also compress the images and optimize other resources to reduce the app size.
React Native, like every other framework, has certain limitations and issues. Thankfully, there are many effective ways to address them.
Despite a few disadvantages, there are many benefits of using React Native framework, which definitely outweigh its limitations, disadvantages, and issues.
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