A visual guide to React Native Performance: Issues and resolving Insights

A visual guide to #reactnative Performance: Issues and resolving Insights

  • A visual guide to React Native Performance: Issues and resolving InsightsFor anyone who is coming from Cordava/Ionic development background, React Native would blow your mind with its easy code sharing, UI advantages, and faster time to market.React Native not only decreases the burden of engineering(as Java/Objective is hard to master),…
  • It is no surprise that Garbage collector does it job, but, due to a bridge between the Native and React Native realm, most components go unnoticed.Credit: GithubEven simpler utility applications such as a hybrid camera app we tested was found to be leaking huge memory.Memory leaks are usually common with…
  • In the screenshot above, you can see that the app size was increased 4x times when it was built using React native.Note: Both of them had exactly the same features, still app size was 4x more in React native.App size drastically impacts — how an application renders its UI components, and allocate the…
  • Read here to see app navigation performance issues with react native and how you can improve them.Infinite scrolling in React NativeMediumLiterally!
  • With best practices, and some lesser known optimisation techniques, you can improve the performance.Aside from what we discussed above, there are so many other performance bottlenecks that you must know before deploying your application.If I had to list few other common issues, they would be:Animating images for different UI viewLack…

For anyone who is coming from Cordava/Ionic development background, React Native would blow your mind with its easy code sharing, UI advantages, and faster time to market. React Native not only…

A visual guide to React Native Performance: Issues and resolving InsightsFor anyone who is coming from Cordava/Ionic development background, React Native would blow your mind with its easy code sharing, UI advantages, and faster time to market.React Native not only decreases the burden of engineering(as Java/Objective is hard to master), but, also decrease the time from concept to deployment.Despite all good deeds, still there are some performance limitations that most of the developers complain about.To better illustrate theses issues, we ran some tests on 20+ applications built with React Native, and handpicked some common performance issues that you must know:Heavy CPU usage on the Javascript SideReact Native applications run on interconneted threads. Native modules run on Native realm, and javascript components run on the JavaScript side.In comparison to Native Realm, the JavaScript Realm usually had the maximum number of elements and libraries running on it. You can also clearly see the heavy load in the above picture.CPU drainage is a major cause for slow app performance, and Here’s how you can reduce the workload and boost the performance.Memory leakageThis is a typical issue in Andriod apps that even experienced developers often face difficulties with. It is no surprise that Garbage collector does it job, but, due to a bridge between the Native and React Native realm, most components go unnoticed.Credit: GithubEven simpler utility applications such as a hybrid camera app we tested was found to be leaking huge memory.Memory leaks are usually common with hybrid applications, and optimizing those running…

A visual guide to React Native Performance: Issues and resolving Insights