Most Common Mistakes To Avoid When Creating A React Native App

Most Common Mistakes To Avoid When Creating A React Native App

Applications have taken over our lives. According to Statista, more than 204 billion applications have been downloaded in 2019. It means the application industry is thriving, and many states that it will keep growing later on also!

As an ever increasing number of individuals use smartphones and thus applications, the industry has become a quiet advantageous opportunity for new entrepreneurs. Many wish to become wildly successful in the sector by developing the best application out of the lot.

But, application development is easier said than done!

The primary choice you should make as a developer is which programming tool to use to create a smooth and glitch free application. One alternative you should think about is to use React Native.

Why React Native?

React Native is a mobile application development framework that is developed by Facebook. It is an open-source platform that was launched in 2015.

Compared with all different cross-platform application development frameworks, React Native has proven to be the most preferred by many developers. This is because it allows developers to create an excellent quality application for the iOS and Android simultaneously!

Here are some basic advantages related with React Native:

  • It uses JavaScript which almost every developer knows inside and out
  • The React Native Framework has a very straightforward installation process
  • The live reload feature of the platform allows for a rapid application development
  • It is a cross-platform, in this way allowing developers to create solutions that can be adapted to Android, iOS, VR devices, smart TVs, and so on.

Also know- How you can create PWA with React Native?

Mistakes To Avoid When Developing React Native App-

Here are the most well-known mistakes that an application developer can make when developing an application using React Native.

1. Wrong Estimation- 

Layout for iOS and Android version – there will be various reusable components, however there could also be various layouts. Actually, the insignificant structure of an application page can be totally different on iOS and Android.

Forms – you should estimate the validation layout too. At the point when you create an application in React Native, you should write more codes compared to when you create a Hybrid application on suppose Cordova.

If creating Web application – You should check all the various endpoints which are offered by the backend. Also, because you should deal with the logic in the application, it should all be coded accurately. You should understand the database structure, how the entities are connected, and so on.

2. Wrong Redux Store Planning-

As a developer when we get an inventive project, we focus more on planning the application layout and less on the information handling part of it. Redux helps in storing the data effectively and managing, debugging application states. When planned right, it can be a useful tool for managing the application data. When not, it can mess up numerous things.

Another point to not in case of Redux application development is that isn’t very appropriate for small projects. Even small changes will ask you to write large codes. In this way, it’ll be good if you decide to go with it for large scale applications and avoid it when choosing React Native for new companies.

3. Not Reading External Modules’ Codes –

It is common for developers to save time through external modules. It makes things simpler and quicker, particularly since they accompany documentation.

But, most often than not, modules break or they probably won’t function as anticipated. This is the reason behind why developers should read the code and treat the step as one of the React Native best practices. Doing it helps to realize what’s wrong with the module and even how it can be solved.

4. Mutation Of State Inside Render Function-

The image above highlights how Datastore and View are interconnected. The datastore contains all of your data in component and the view is rendered based on state. It consumes a new state from data store and shows it on the screen. So as to accomplish that, React has a setState() function where the new object state is taken and compared with the previous state. At last, a new state is included after merger with the previous state and sent to the state datastore.

This cycle is available all through the lifetime of a component when you develop an application in React Native. Now, if you transform the state directly, the lifecycle fails and it corrupts all the past states. This prompts application behaving abnormally or even crashing. 

This will result in you losing the track of the states across components and will lead you to write custom code instead of React. Also, you’ll end up having an unmanageable code and a heavy application.

Left “console.log” statements

Console log statements are very helpful. They even provide help with debugging the application execution. But, what happens when you leave the log statements in the application? This can become a serious issue if you keep the render methods and logics inside, particularly those which are asynchronous for they can prompt a bottleneck in JavaScript thread. All this prompts the application turning out to be slower.

6. Using Stateless Component For Gaining React Native Performance-

A few developers believe that what was true before React 16 is true even now. Stateless component implies that the component doesn’t extend any class. It takes the argument as display and props in the DOM. It accompanies benefits like – Easy testing ability, Fast implementation, Does not use state or the local variables. 

With the time changing, it has today become more wiser for developers to use pure components when they create React Native applications. Here’s the reason –

1. Performs Shallow Compare – 

This is a special win for complex UI applications as it brings down the render operations. The reason for it is that it accompanies a life cycle method known as shouldComponentUpdate which automatically shallows comparison and afterward check if re-render is required. In the case of stateless components, re-render happens when parent component re-renders.

In any case, by virtue of unadulterated part, re-render possibly happens when a change is distinguished in the states or props.

Regardless, by virtue of unadulterated part, re-render conceivably happens when a change is recognized in the states or props. In the case of pure component, re-render possibly happens when a change is detected in the states or props.

Performs side effects – Developers can even send AJAX request inside componentDidmount or can perform some other DOM operations.

7. Not Optimizing React Native Images- 

Optimizing the images in applications built with React Native should be a high priority task. It helps with resizing the images locally and then uploading them to cloud storage like the s3 by server and getting the cdn link which at that point can be returned using API. Following this process, helps make the image loading process fast. 


While these are just 7, there can be others too. As a developer, your aim should be to reduce the mistakes as possible. If you are also doing the mistakes, just consider this article for better development. You can also consult with Solace experts. We have a dedicated team to help you through their best knowledge. Connect with Solace for more efficient and effective React native app development. We will be happy to help you.

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