Caching a Rive File - Rive

Under most circumstances a .riv file should load quickly and managing the RiveFile yourself is not necessary. But if you intend to use the same .riv file in multiple parts of your application, or even on the same screen, it might be advantageous to load the file once and keep it in memory.

Example Usage

Here’s a simplified example showing how to integrate the useRiveFile hook to reuse a RiveFile across components:

import React, { useState } from 'react';
import { useRiveFile } from '@rive-app/react-canvas';

// Custom Wrapper component to display the Rive animation
const RiveAnimation = ({ riveFile }) => {
    const { RiveComponent } = useRive({
        riveFile: riveFile,
        autoplay: true
    });

    return <RiveComponent/>;
};

function App() {
const { riveFile, status } = useRiveFile({
    src: 'https://cdn.rive.app/animations/myrivefile.riv',
});

const [instanceCount] = useState(5); // Number of RiveAnimation components to render

if (status === 'idle') {
    return <div>Idle...</div>;
}

if (status === 'loading') {
    return <div>Loading...</div>;
}

if (status === 'failed') {
    return <div>Failed to load Rive file.</div>;
}

// Each RiveAnimation component uses the RiveFile we loaded earlier, so it is only fetched and initialized once
return (
    <div className="App">
        <header className="App-header">Rive Instances</header>
        <div className="rive-list">
        {Array.from({ length: instanceCount }, (_, index) => (
            <RiveAnimation key={`rive-instance-${index}`} riveFile={riveFile} />
        ))}
        </div>
    </div>
    );

}

export default App;