How To Easily Use Animations From Cool Designers In Your Web App?

Mohmed Ishak - May 3 '21 - - Dev Community

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The truth is, to have cool animations in your web app like loading animation, you don't need to be a good designer cause we've got designers who do that and you just need to get some help from them.

Ever Heard Of Lottie Files?

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Lottie Files is an animation library from Airbnb where it is web developers' go-to site to look for awesome animations, use it in our app and then pretend like we did it from scratch to non-techies.

Anyway, here's how to use it in your React project.

Step 1:

Add this package to your dependency

npm i react-lottie
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Step 2:

Head over to https://lottiefiles.com/search?q=loading&category=animations and select any animation. Download the file in JSON format and keep it in your project directory, preferably in a folder named assets.

Step 3:

Create an animation component- in this case a loader component (you can literally copy & paste the code snippet below and it'll work but be sure to import the right JSON file).

import Lottie from "react-lottie";
import animationData from "../assets/6472-loading.json";

function Loader() {
  const defaultOptions = {
    loop: true,
    autoplay: true,
    animationData: animationData,
    rendererSettings: {
      preserveAspectRatio: "xMidYMid slice",
    },
  };

  return <Lottie options={defaultOptions} height={100} width={100} />;
}

export default Loader;
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Step 4:

You probably know how to use this now. One common use case is to have a boolean variable like isVisible and show this component depending on the value like:

{ isVisible && <Loader /> }
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