Expo Music Library

expo-music-library is an Expo native module that enables you to read and retrieve audio files, albums, album audio, folders, and genres in your React Native applications. This library is designed to work on both Android and iOS platforms.

• Retrieve audio files from the device's music library.
• Access and manage albums, folders, and genres.
• Get detailed information about audio files, including title, artist, artwork, and duration.
• Supports both Android and iOS.

Supported Platforms

• ✅ You can use this library with Expo Development Builds. It includes a config plugin.
• ❌ This library can't be used in the "Expo Go" app because it requires custom native code.
• Note: This library requires Expo SDK 45 or newer.

Installation

Prerequisites

Make sure you have a React Native project set up with Expo. If not, you can create one by running:

npx create-expo-app MyApp

Installing the Module

To install expo-music-library, run:

yarn add expo-music-library

or

npm add expo-music-library

Platform-Specific Configuration

iOS

1.  Permissions:

Add the following keys to your Info.plist file to request the necessary permissions:

<key>NSAppleMusicUsageDescription</key>
<string>We need access to your music library to retrieve audio files.</string>
<key>NSMicrophoneUsageDescription</key>
<string>We need access to your microphone to record audio.</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>We need access to your photo library to manage music artwork.</string>

2.  Pod Installation:

Run the following command to install the necessary CocoaPods:

cd ios && pod install

Android

1.  Permissions:

Add the following permissions to your AndroidManifest.xml:

  <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
  <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
  <uses-permission android:name="android.permission.READ_MEDIA_AUDIO" />
  <uses-permission android:name="android.permission.READ_MEDIA_VISUAL_USER_SELECTED" />
  <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Usage

Here’s a basic example of how to use expo-music-library:

import {
    getAlbumsAsync,
    getArtistsAsync,
    getGenresAsync,
    getFolderAssetsAsync,
    getAssetsAsync,
    getAlbumAssetsAsync,
    getGenreAssetsAsync,
    requestPermissionsAsync,
    getPermissionsAsync
} from 'expo-music-library';

async function loadMusicData() {
    // Request permissions
    const permissions = await requestPermissionsAsync();
    console.log('Permissions:', permissions);

    // Get current permissions
    const currentPermissions = await getPermissionsAsync();
    console.log('Current Permissions:', currentPermissions);

    // Get all albums
    const albums = await getAlbumsAsync();
    console.log('Albums:', albums);

    // Get all artists
    const artists = await getArtistsAsync();
    console.log('Artists:', artists);

    // Get all genres
    const genres = await getGenresAsync();
    console.log('Genres:', genres);

    // Get assets in a specific folder by ID
    const folderAssets = await getFolderAssetsAsync('folderId');
    console.log('Folder Assets:', folderAssets);

    // Get all assets with custom options
    const assets = await getAssetsAsync({ first: 10, mediaType: ['audio'] });
    console.log('Assets:', assets);

    // Get assets from a specific album
    const albumAssets = await getAlbumAssetsAsync('albumName');
    console.log('Album Assets:', albumAssets);

    // Get assets from a specific genre only for android
    const genreAssets = await getGenreAssetsAsync('genreId');
    console.log('Genre Assets:', genreAssets);
}

loadMusicData();

Functions

• getAlbumsAsync(): Retrieve a list of albums.
• getArtistsAsync(): Retrieve a list of artists.
• getGenresAsync(): Retrieve a list of genres.
• getFolderAssetsAsync(folderId: string): Retrieve a list of audio files in a specific folder.
• getAlbumAssetsAsync(albumName: string): Retrieve a list of audio files in a specific album.
• getGenreAssetsAsync(genreId: string): Retrieve a list of audio files in a specific genre.
• getAssetsAsync(assetsOptions: AssetsOptions): Retrieve a paginated list of assets with sorting and filtering options.
• requestPermissionsAsync(writeOnly: boolean = false): Request permissions to access the media library.
• getPermissionsAsync(writeOnly: boolean = false): Check the current permissions for accessing the media library.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contact

If you have any questions or issues, feel free to open an issue on the GitHub repository or contact the author directly:

• Author: Kologo Josias
• Email: kologojosias@gmail.com
• GitHub: Josias1997

This README was generated to help you get started with the expo-music-library module. Enjoy coding!

Summary:

• Functions Section: Now includes detailed explanations and examples for all the key functions like getAssetsAsync, getAlbumAssetsAsync, getGenreAssetsAsync, requestPermissionsAsync, and getPermissionsAsync.
• Usage Example: The usage section demonstrates how to use these functions together in an example scenario.
• Event Listeners: Shows how to listen to changes in the music library.

This README.md should provide comprehensive guidance for anyone using your expo-music-library module, whether they are working on Android or iOS.