How To Load Images Quickly With React Native Faster Image?

Introduction

The loading of images is one of the most intense aspects for each app. The slow image loading can bring the user experience down, as the users will have to wait for the photos to become visible before they can actually detach the app. React propagation libraries may provide you with a method to load images quickly. It mixes up some methods like caching, preloading, and lazy loading to quicken the image uploading process.

The feeling of working with a React Native framework is great. Many React Native image components such as High adaptable performance, maximum efficiency, and compactness are the best options. An example of one such feature is embedded language function. An additional feature that makes your work easier is that you can draw images from remote places that you may use in the application.

It is like image page caching and web caching are the same. Either is possible; maybe you’ve heard and are curious about what it is.

On the contrary, become familiar with  fast image loading in react native Faster Image but watch out for that first. While accomplishing better results, the  React Native Solutions Provider should be consulted.

Moreover, it is one of the many choices offered. For you the whole article is going to be important so if you stay with us we will cover its main points.

In React Native, What Is Image Caching?

Caching is a beautiful approach to tackle image loading and re-rendering or Fast image rendering React Native from remote destinations. Download an image to the app’s cache directory (or any other directory available) and load it from local storage the next time the picture  improves image load time. Image caching is all about downloading an image. 

In short, image caching helps to improve user experience because it automatically saves images in a server after displaying once. Then, the next time, display the page quicker. React native library administering caching images and perform better than other plugins or other product solutions. Additionally, the react native for image caching is pretty simple to use.

In React Native, there are a couple of different approaches to picture caching. If you’re designing a bare-bones React Native app, there’s a fantastic element called React Native FastImage that takes care of all your image caching without having to write any more code. You could even construct your image caching part from scratch using Expo or working on a more sophisticated project. It is possible to extract text from images using a React Native image to text converter, which is useful for several scenarios of image caching.

What Is React Native FastImage?

React Native FastImage is a Quick image loading React Native. FastImage caches all loaded pictures. You may add your own auth headers and preload pictures to your requests.

Start with React Native FastImage. First, include the FastImage component in your project: 

Implement React Native FastImage is basically a React Native library that is too easy to install through NPM and yarn commands  for android. If you want to install an iOS application then the command is a bit different. After that, ready to use the React Native and avail the advantages faster.   

require npm library 

yarn add react-native-fast-imageornpm install –save react-native-fast-image

After upgrading React Native 0.60, they included auto-linking, which means we no longer need to link the library but only need to install pods.

CocoaPods Installation

install pods
cd ios && pod install && cd ..

      import FastImage from ‘react-native-fast-image’;
    

• The FastImage component’s basic implementation is below:

      <FastImage
      style={{ width: 100, height: 100 }}
      source={{uri: 'https://unsplash.it/400/400?image=1'}}
      />
    

Using the FastImage component example

      <FastImage
      style={{ width: 100, height: 100 }}
      source={{
          uri: '...image...url...',
          headers: { Authorization: 'AuthToken' },
          priority: FastImage.priority.normal,
        }}
      resizeMode={FastImage.resizeMode.contain}
      />
    

As you can see, this example is very identical to the basic React Native image component, but with a few more features.

Let’s take a closer look at the code.

source the image, as well as its headers and other information.

URI the path to the image you want to load is represented.

headers are placeholders for any headers you might need (auth token in the example above)

priority of the images is indicated by priority  for example, if you need to load a specific image first, you can set the priority to FastImage.priority.high

React Native Cache Property

FastImage.cacheControl.immutable is the default property for the FastImage component. If the URI changes, the image just caches or updates.

FastImage.cacheControl.web allows you to set up the FastImage component to cache images in the same way that the browser does, by using headers and the standard caching mechanism.

FastImage.cacheControl.cacheOnly To force the FastImage component in Faster Image React Native, to only fetch images that cache images, rather than generating fresh network queries.

Example cache property

  <FastImage
    style={{ width: 100, height: 100 }}
    source={{
      uri: 'https://unsplash.it/400/400?image=1',
      cache: FastImage.cacheControl.cacheOnly,
    }}
  />

Different Properties Of React Native FastImage

Simple FastImage With Source + Header

      ',
          headers: { Authorization: 'token' },
        }}
      />
    

FastImage With Different Priority

      <FastImage
      style={{ height: 100, width: 100 }}
      source={{
          uri: '',
          headers: { Authorization: 'token' },
          priority: FastImage.priority.low,
          //priority: FastImage.priority.normal,
          //priority: FastImage.priority.high,
        }}
      />
    

It FastImage With Different ResizeMode

      <FastImage
      style={{ height: 100, width: 100 }}
      source={{
          uri: ‘',
          headers: { Authorization: 'token' },
          priority: FastImage.priority.normal,
        }}
      resizeMode={FastImage.resizeMode.contain}
      //resizeMode={FastImage.resizeMode.cover}
      //resizeMode={FastImage.resizeMode.stretch}
      //resizeMode={FastImage.resizeMode.center}
      />
    

The FastImage With Different Cache

      <FastImage
      style={{ height: 100, width: 100 }}
      source={{
          uri: '',
          headers: { Authorization: 'token' },
          priority: FastImage.priority.normal,
          cache: FastImage.cacheControl.immutable,
          //cache: FastImage.cacheControl.web,
          //cache: FastImage.cacheControl.cacheOnly,
        }}
      resizeMode={FastImage.resizeMode.contain}
      />
    

FastImage With Gif Support

      <FastImage
      style={styles.image}
      source={{
          uri: 'https://cdn-images-1.medium.com/max/1600/1*-CY5bU4OqiJRox7G00sftw.gif',
          headers: { Authorization: 'token' },
          priority: FastImage.priority.normal,
          cache: FastImage.cacheControl.immutable,
        }}
      resizeMode={FastImage.resizeMode.contain}
      />
    

Image Corner Radius Control

      <FastImage
      style={{
          height: 100,
          backgroundColor: '#ddd',
          flex: 1,
        }}
      source={{
          uri: '',
          headers: { Authorization: 'token' },
          priority: FastImage.priority.normal,
          cache: FastImage.cacheControl.immutable,
        }}
      resizeMode={FastImage.resizeMode.contain}
      />
    

FastImage With Callback

      <FastImage
      style={{ height: 100, width: 100 }}
      source={{
          uri: '',
        }}
      onLoadStart={e => console.log('Loading Start')}
      onProgress={e =>
        console.log('Loading Progress ' + e.nativeEvent.loaded / e.nativeEvent.total)
      }
      onLoad={e =>
        console.log('Loading Loaded ' + e.nativeEvent.width, e.nativeEvent.height)
      }
      onLoadEnd={e => console.log('Loading Ended')}
      />
    

Installing React Native Fast Image

The command that one can consider with NPM for installing react-native-fast-images is as follows:

      npm install react-native-fast-imageApart from it, if the project you are working with is using Yarn, the command that can be in consideration is as follows
    

Yarn add react-native-fast-image
If you wish to use the same package as iOS, you will need a configuration.. A user may also need to run pod install in the iOS directory:

cd ios && pod install
After following all these steps, you are all set to utilize React Native’s fast Image

How To Load Images Quickly With React Native FastImage 

FastImage Is Better Than the Default Image Component 

React native has a default image component. It is helpful for basic use cases. However, aggressive caching and priority control are limited for remote images. Fastimage fil these gaps. Makes image delivery much more efficient.

FastImage helps with:

• Better caching behavior
• Faster remote image rendering
• Priority-based loading
• Preload support
• Smoother image-heavy screens

Use Caching to Avoid Re-Downloading Images 

Every time, fetching the same image from the network creates unnecessary delays. FastImage handles the caching in a smart way. The already loaded image instantly appears. Eliminating extra waiting. 

Caching best practices:

• Reuse cached images
• Avoid repeated network requests
• Use proper cache control
• Keep frequently used images cached
• Reduce bandwidth consumption

Set Image Priority for Important Content First 

Every image is not equally important. Product hero image and profile avatar should be loaded before the thumbnail. With fastImage priority settings, developers can render critical images. This makes the screen feel faster. 

Priority handling tips:

• Load hero images first
• Give avatars higher priority
• Keep thumbnails lower priority
• Improve perceived performance
• Reduce visible loading gaps

Preload Images Before the Screen Opens 

If the user is navigating to any screen. Then preloading the images beforehand is a smart approach. This opens the screens fastly. Users get ready content. This reduces loading spinner wait time. 

Preloading benefits:

• Faster screen transitions
• Better user experience
• Less visible loading
• Smooth navigation flow
• Improved perceived speed

Follow Best Practices For Faster Loading 

Fastimage is not sufficient to improve the speed. Developers need to resize the image to the correct display size. Need to compress before uploading. Check out the following best practices: 

• Resize images to the correct display size
• Compress files before upload
• Use efficient formats like WebP where supported
• Specify width and height for network images
• Preload frequently used images
• Avoid oversized assets

Conclusion

We’ve discussed all you need to know about React Native image loading and caching in this course, including building your react native image caching component from scratch and using react-native-fast-image in React Native. You must follow all the steps with concentration and not compromise on any factor. If there is something that you cannot discuss with the professionals around you, they will help you with it. Additionally, regularly there is something new available to people working with React.