Altcademy - a Forbes magazine logo Best Coding Bootcamp 2023

How to make an image slide in to fade in ReactJS

Getting Started

Creating an interesting and interactive front-end for your application can significantly improve the user experience. One way to achieve this is by adding image slides and fade effects. In this blog, we will focus on ReactJS, a popular JavaScript library for building user interfaces, to create these effects.

Setting up Your React Environment

Before we start, you need to have Node.js and npm (node package manager) installed on your computer. After you've installed these, you can now install create-react-app, a tool that allows us to create a new React app, by using the command npx create-react-app image-slider.

Navigate into your new project by typing cd image-slider.

Image Slide and Fade Effect: What are they?

Before diving into the code, let's get a brief understanding of what image slide and fade effects are.

Image slide effect is a type of animation where an image moves (slides) across your screen. Imagine you're reading a book, and you move to the next page by sliding the current page to the left or the right. That's basically what an image slide effect does - it "slides" images across your screen.

On the other hand, a fade effect is a gradual change of opacity. Think about a sunrise. The sky doesn't suddenly turn from dark to light. Instead, it gradually changes from darkness to brightness - the darkness fades away, and the light fades in. That's the intuition behind the fade effect.

Creating Image Slide and Fade Effect in ReactJS

Let's start with the implementation. We'll need a couple of images to make our slider. You can use any images you want; just put them in the src directory of your project. We will use an array to store the image sources.

const images = ['image1.jpg', 'image2.jpg', 'image3.jpg'];

Now, let's move onto creating the slider. We'll create a new component named ImageSlider and use the package react-slideshow-image to create the image slide effect. Install this package by typing npm install react-slideshow-image in your terminal.

import React from 'react';
import { Fade } from 'react-slideshow-image';

const ImageSlider = ({images}) => {
  return (
    <div className="slide-container">
      <Fade>
        {images.map((image, index) => 
          <div key={index} className="each-fade">
            <div className="image-container">
              <img src={image} alt=""/>
            </div>
          </div>
        )}
      </Fade>
    </div>
  );
}

export default ImageSlider;

In the code snippet above, we're using the Fade component from react-slideshow-image to create the fade effect. We use the map function to loop over the images array and create a new div for each image.

Styling the Image Slider

We can add some CSS to make our image slider look better. Create a new CSS file named ImageSlider.css and add the following styles:

.slide-container {
  width: 70%;
  margin: auto;
}

.image-container {
  width: 100%;
  height: 100%;
}

.image-container img {
  width: 100%;
  height: 100%;
}

This will center the image slider and make the images fit the slider's size.

Using the ImageSlider Component

With our ImageSlider component ready, we can now use it in our app. Update the App.js file as follows:

import React from 'react';
import './App.css';
import ImageSlider from './ImageSlider';

const images = ['image1.jpg', 'image2.jpg', 'image3.jpg'];

function App() {
  return (
    <div className="App">
      <ImageSlider images={images} />
    </div>
  );
}

export default App;

Now, if you run your app by typing npm start in your terminal, you should see your images sliding in with a fade effect.

Conclusion

Congratulations! You've just built an image slider with a fade effect in ReactJS. This is just the tip of the iceberg of what you can do with ReactJS and animations. You can experiment with other animation libraries and effects to add more interaction to your apps. Remember, the key is to keep learning and experimenting. Happy coding!