What is the process for creating React Native components for various build types and flavors?

When working with React Native, there is a useful feature that allows us to use different component files based on the platform. For example, using component.ios.js and component.android.js will generate a component module with specific behavior for iOS and Android.

Is there a way to create different components based on build variants, flavors, or schemes? For instance, if I have a pro and a lite version of my app, can I do something like this:

| some-folder/
| -- component.pro.js
| -- component.lite.js

So when I do 

import component from 'some-folder/component'
, the bundler can recognize whether I'm using the pro or lite build variant and bundle the correct JavaScript file, similar to how it works with OS suffixes.

I understand that I could check the build variant at runtime and provide the correct component accordingly, but this would mean including unnecessary code for the wrong variant in the app, making it larger than needed.

Relatedly, is there a way to import images conditionally based on the build variant? I know I could place them in separate asset folders for each native platform, but I am curious if there are other methods available.

Any assistance on these matters would be highly appreciated.

javascriptandroidiosreact-native

Answer №1

It is not possible for React Native to load the correct file based on platform by detecting .ios or .android extensions in the file name.

You would need to create your own wrapper for each file, such as:

- component

--> component.pro.js

--> component.lite.js

--> index.js

In the index.js file, you will need to determine the platform or OS using React Native and return the specific file accordingly.

For example:

import ComponentPro from './component.pro.js';
import ComponentLite from './component.lite.js';
import {Platform} from 'react-native';

export defualt Component = (props) => {
  if (platform.os==='pro') return <ComponentPro {...props}/>;
  else if (platform.os==='lite') return <ComponentLite {...props}/>;
}

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