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A Step-by-Step Guide to Building a React Native Image Compressor

By Anurag on 10/3/2023

Mobile applications often include images, but they can also be a performance stumbling block. The user experience of your React Native app will be improved if your photos are optimized. We'll walk you through creating a straightforward image compressor with React Native in this article.

Prerequisites

Make sure you have the following installed before we start:

  • Using npm React Native CLI
  • Node.js
  • A preferred code editor

Step 1: Create a New React Native Project

Create a new React Native project first. Launch your terminal, then enter:

- npx react-native init ImageCompressor

A new React Native project with the name "ImageCompressor" will be created by this command.

Step 2: Install Dependencies

We'll then install the prerequisites for image compression. To select photos and resize them, we'll use the react-native-image-picker library and react-native-image-resizer.

- npm install react-native-image-picker react-native-image-resizer

Step 3: Link Dependencies

We must link the new native modules to our project because we have added them. Run:

- npx react-native link react-native-image-picker

- npx react-native link react-native-image-resizer

Step 4: Writing the Image Compressor Component

In your src folder, make a new file called ImageCompressor.js and add the following code:

The user can choose an image and then compress it using the component ImageCompressor we've written in this code.

Step 5: Integrating the Component

Open the App.js file and add the following to its contents:

Step 6: Running the App

Lastly, launch your React Native application by typing:

- npx react-native run-android

# or

npx react-native run-ios

In your React Native app, selecting and compressing photos should now be possible.

Conclusion

In this article, we learnt how to use React Native to create a straightforward image compressor. For your app to optimize image sizes, boost performance, and improve user experience, this could be a useful feature. Please feel free to further modify and build upon this example to meet your unique needs.

React Native
React Native Image
React Native Image Compress
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