MediaStore

Fetch Audio/MP3 files from specific folder of device or fetch all files

First, add the following permissions to the manifest of your project in order to enable device storage access:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

Then, create the file AudioModel.class and put the following model class into it in order to allow getting and setting list items:

public class AudioModel {
    String aPath;
    String aName;
    String aAlbum;
    String aArtist;

    public String getaPath() {
        return aPath;
    }
    public void setaPath(String aPath) {
        this.aPath = aPath;
    }
    public String getaName() {
        return aName;
    }
    public void setaName(String aName) {
        this.aName = aName;
    }
    public String getaAlbum() {
        return aAlbum;
    }
    public void setaAlbum(String aAlbum) {
        this.aAlbum = aAlbum;
    }
    public String getaArtist() {
        return aArtist;
    }
    public void setaArtist(String aArtist) {
        this.aArtist = aArtist;
    }
}

Next, use the following method to read all MP3 files from a folder of your device or to read all files of your device:

public List<AudioModel> getAllAudioFromDevice(final Context context) {
    final List<AudioModel> tempAudioList = new ArrayList<>();

    Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
    String[] projection = {MediaStore.Audio.AudioColumns.DATA, MediaStore.Audio.AudioColumns.TITLE, MediaStore.Audio.AudioColumns.ALBUM, MediaStore.Audio.ArtistColumns.ARTIST,};
    Cursor c = context.getContentResolver().query(uri, projection, MediaStore.Audio.Media.DATA + " like ? ", new String[]{"%utm%"}, null);

    if (c != null) {
        while (c.moveToNext()) {
            AudioModel audioModel = new AudioModel();
            String path = c.getString(0);
            String name = c.getString(1);
            String album = c.getString(2);
            String artist = c.getString(3);

            audioModel.setaName(name);
            audioModel.setaAlbum(album);
            audioModel.setaArtist(artist);
            audioModel.setaPath(path);

            Log.e("Name :" + name, " Album :" + album);
            Log.e("Path :" + path, " Artist :" + artist);

            tempAudioList.add(audioModel);
        }
        c.close();
    }

    return tempAudioList;
}

The code above will return a list of all MP3 files with the music's name, path, artist, and album. For more details please refer to the Media.Store.Audio (opens new window) documentation.

In order to read files of a specific folder, use the following query (you need to replace the folder name):

Cursor c = context.getContentResolver().query(uri,
    projection,
    MediaStore.Audio.Media.DATA + " like ? ",
    new String[]{"%yourFolderName%"}, // Put your device folder / file location here.
    null);

If you want to retrieve all files from your device, then use the following query:

Cursor c = context.getContentResolver().query(uri,
    projection,
    null,
    null,
    null);

Note: Don't forget to enable storage access permissions.

Now, all you have to do is to call the method above in order to get the MP3 files:

getAllAudioFromDevice(this);

Example with Activity

public class ReadAudioFilesActivity extends AppCompatActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_audio_list);

        /**
         * This will return a list of all MP3 files. Use the list to display data.
         */
        getAllAudioFromDevice(this);
    }

    // Method to read all the audio/MP3 files.
    public List<AudioModel> getAllAudioFromDevice(final Context context) {
        final List<AudioModel> tempAudioList = new ArrayList<>();

        Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
        String[] projection = {MediaStore.Audio.AudioColumns.DATA,MediaStore.Audio.AudioColumns.TITLE ,MediaStore.Audio.AudioColumns.ALBUM, MediaStore.Audio.ArtistColumns.ARTIST,};
        Cursor c = context.getContentResolver().query(uri, projection, MediaStore.Audio.Media.DATA + " like ? ", new String[]{"%utm%"}, null);

        if (c != null) {
            while (c.moveToNext()) {
                // Create a model object.
                AudioModel audioModel = new AudioModel();
                
                String path = c.getString(0);   // Retrieve path.
                String name = c.getString(1);   // Retrieve name.
                String album = c.getString(2);  // Retrieve album name.
                String artist = c.getString(3); // Retrieve artist name.

                // Set data to the model object.
                audioModel.setaName(name);
                audioModel.setaAlbum(album);
                audioModel.setaArtist(artist);
                audioModel.setaPath(path);

                Log.e("Name :" + name, " Album :" + album);
                Log.e("Path :" + path, " Artist :" + artist);

                // Add the model object to the list .
                tempAudioList.add(audioModel);
            }
            c.close();
        }

        // Return the list.
        return tempAudioList;
    }
}