@rossbrown/react-use-audio-player v0.0.12

react-use-audio-player

A custom React hook for controlling browser audio powered by the amazing howler.js library. The intention of this package is to abstract away the details of howler's API using built-in React primitives to create an interface that is more React-friendly, allowing you to write React code that is free from audio-related side-effects.

Install

yarn add react-use-audio-player

TypeScript

For convenience, the library's type definitions are included in the package under index.d.ts.

Usage

This library exports a context Provider and two hooks for controlling an audio source, giving you the tools you need to build you own audio player or visualization.

AudioPlayerProvider

This Provider is required for the hooks to function. The Provider contains a single audio source and exposes an interface for manipulating it via the useAudioPlayer hook. The benefit of having a single, shared audio source is that it allows the developer to compose together multiple components that share knowledge about the audio. For example, you may have separate components PlayPauseButton, SeekBar and VolumeControls all working together on the same audio source.

import React from "react"
import { AudioPlayerProvider } from "react-use-audio-player"

const App = () => {
    return (
        <AudioPlayerProvider>
            <AudioPlayer file="meow.mp3" />
        </AudioPlayerProvider>
    )
}

useAudioPlayer

This is the main hook for controlling your audio instance.

Example:

import React from "react"
import { useAudioPlayer } from "react-use-audio-player"

const AudioPlayer = ({ file }) => {
    const { play, pause, ready, loading, playing } = useAudioPlayer({
        src: file,
        format: "mp3",
        autoplay: false
    })

    const togglePlay = () => {
        if (playing) {
            pause()
        } else {
            play()
        }
    }

    if (!ready && !loading) return <div>No audio to play</div>
    if (loading) return <div>Loading audio</div>

    return (
        <div>
            <button onClick={togglePlay}>{playing ? "Pause" : "Play"}</button>
        </div>
    )
}

API

Arguments

• (optional) audioPlayerConfig: { src: string, format?: string, autoplay?: boolean } autoplay and format are optional. autoplay will default to false.

Return Value

useAudioPlayer returns a single object containing the following members:

• laod: ({ src: string, format?: string, autoplay?: boolean }) => void method to lazily load audio

• loading: boolean true if audio is being fetched

• ready: boolean true if the audio has been loaded and can be played

• playing: boolean true is the audio is currently playing

• stopped: boolean true if the audio has been stopped

• error: Error set when audio has failed to load

• play: () => void plays the loaded audio

• pause: () => void pauses the audio

• stop: () => void stops the audio, returning the position to 0

• seek: (position: number) => void sets the position of the audio to position (seconds)

• mute: () => void mutes the audio

useAudioPosition

This hooks exposes the current position and duration of the audio instance as its playing in real time. This data may be useful when animating a visualization for your audio like a seek bar. A separate hook was created to manage this state in order to avoid many rerenders of components that don't need the live data feed. For example a component that renders a play/pause button may use useAudioPlayer but does not need to rerender every time the position of the playing audio changes.

import React from "react"
import { useAudioPosition } from "react-use-audio-player"

const PlayBar = () => {
    const { position, duration } = useAudioPosition()
    const [percent, setPercent] = React.useState(0)

    React.useEffect(() => {
        setPercent((position / duration) * 100 || 0)
    }, [position, duration])

    return <ProgressBar percentComplete={percent} />
}

API

Return Value

useAudioPosition returns an object containing the following members:

• position: number the current playback position of the audio in seconds

• duration: number the total length of the audio in seconds

Examples

To run the example applications follow the following steps:

1. git clone the repository
2. cd useAudioPlayer/examples
3. yarn install
4. yarn start
5. follow the local README for further assistance