Native Media Player

Background Audio Player for iOS & Android

The Native Media Player plugin adds a native media player UI to the device lock screen and notification area. This allows audio from your app to play while the device is locked or your app is backgrounded. Use cases include radio apps, audiobooks, podcasts, e-learning courses, corporate training, news publications, and many more. The player includes Play/Pause and Previous/Next controls, and displays metadata associated with the currently playing track.

iOS Android


Developer Demo

Display our demo page in your app to test during development

Play a single track


↔️Median JavaScript Bridge

Create an object with the URL of the track:

var track = {
      "url": "https://Your_Audio_URL"


Create an object with the URL of the track and custom metadata (if your audio does not include already):

// track with metadata
var track = {
     "url": "https://Your_Audio_Url",
     "title": "Example Title",
     "album": "Example Album",
     "artist": "Example Artist"


Call playTrack function with the track object

// Optional: show a spinner

// Start the player
const { success } = await median.backgroundMedia.playTrack(track);

// Optional: hide the spinner

if(success) {
  // Player has successfully started playing the track.

HTML (with track defined as global variable):

<button type="button" onclick="median.backgroundMedia.playTrack(track)">Start Track</button>

When playing a single track, this will display Play/Pause and Close buttons.

iOS - Single Track Android - Single Track

Pause MediaPlayer


<button type="button" onclick="median.backgroundMedia.pause()">Pause</button>

Stop MediaPlayer


<button type="button" onclick="median.backgroundMedia.stop()">Stop</button>

Note: For Android, this command will stop the background media and remove the Media Player from the notification area. For iOS, it will only pause the media.

Get Player Status

Retrieve player status including current track time, 'isPaused' status, album, artist, title, artwork and track URL.

Method 1 (Using Callback):


<button type="button" onclick="median.backgroundMedia.getPlayerStatus({'callback': playerStatusCallback})">Get Player Status</button>


↔️Median JavaScript Bridge

Declare a function to load the JavaScript bridge URL:

// Declare a callback function to get player status
function playerStatusCallback(status){

Method 2 (Using Promise):


<button type="button" onclick="getInfo()">Get Player Status</button>


↔️Median JavaScript Bridge

Declare an async function to wait for player status:

async function getInfo(){
      console.log(JSON.stringify(await median.backgroundMedia.getPlayerStatus()));

Example Status Output:

  'currentTime': <time in ms>,
  'isPaused': <boolean>,
  'album': <string>,
  'artist': <string>,
  'title': <string>',
  'artwork': <string - URL>,
  'url': <string - URL>

Seek position

To seek to a particular position of the currently playing media, pass any float value (in seconds) as an argument for the method given below.


<button type="button" onclick="median.backgroundMedia.playTrack(50)">Seek track to 50s</button>

Start playback from a particular seek position

To start a track from a particular position, pass a parameter named "time" inside the track object with a float value (in seconds). For example, the track given below will directly start from 50 seconds.


↔️Median JavaScript Bridge

Create an object with the URL of the track and desired initial seek position:

var track = {
      "url": "https://Your_Audio_URL",
      "time": 50


<button type="button" onclick="median.backgroundMedia.playTrack(track)">Start Track from 50s</button>

Stream a Playlist


<button type="button" onclick="median.backgroundMedia.streamPlaylist(playlist)">Start Playlist</button>


↔️Median JavaScript Bridge

Create an object with any number of audio tracks to send to the device as one playlist along with the starting track number in currentTrackNumber. For example, to start the playlist with the 3rd song in the playlist, set the currentTrackNumber: 2.

var playlist = {
     "currentTrackNumber": 0,
     "tracks": [
                   "url": "https://Your_Audio_URL_1",
                   "title": "Example 1 Title",
                   "album": "Example 1 Album",
                   "artist": "Example 1 Artist"
                   "url": "https://Your_Audio_URL_2",
                   "url": "https://Your_Audio_URL_3",
                   "title": "Example 2 Title",
                   "album": "Example 2 Album",
                   "artist": "Example 2 Artist"

Move through playlist

When the currently playing track finishes playing, the player will automatically switch to the next track in the playlist. The user can also step through the playlist using the Next and Previous buttons.

iOS - Playlist Android - Playlist

Audio Metadata

The player will display the embedded metadata of the playing track, including the audio icon image. If your audio file does not include any metadata, you can include the metadata in the track object, as shown in the examples above.
Note: If metadata is embedded in the track but also provided manually, the manual metadata will be selected.

If no metadata is available, the metadata will be set as:
Title: Playing Media
Artist: APP_NAME

iOS - Default Metadata Android - Default Metadata

Audio icons can only be retrieved directly from the Audio URL. So, if none is available, the MediaPlayer will set the app icon as the audio icon:

Audio icon from embedded metadata:

Default audio icon - App Icon:

iOS - Default Audio Icon Android - Default Audio Icon

Background Mode


iOS Background Mode Configuration

Prior to building your iOS app in Xcode add the Audio, AirPlay, and Picture in Picture capability which is needed for the native media player to work in background, as seen below:

iOS Background Capability

iOS Background Mode

Implementation Guide


Developer Demo

Display our demo page in your app to test during development

You will need to define the following two JavaScript functions on your website:

getPlayerStatus() - Gets the current status of the web player to pass to the native media player. (Called when the app is paused/backgrounded).

updatePlayerStatus(mediaPlayerStatus) - Passes the native media player status to the web player when the app is resumed. (Called when the app is resumed/foregrounded).

Example Code

var webPlayer = document.getElementById('web_player');

function getPlayerStatus() {
    var status = {
        'currentTime': webPlayer.currentTime,
        'isPaused': webPlayer.paused,
        'album': 'Kennedy',
        'artist': 'JFK',
        'title': 'JFK Speech',
        'artwork': 'https://path_to_thumbnail.jpeg',
        'url': webPlayer.currentSrc
    return status;

function updatePlayerStatus(mediaPlayerStatus) {
    // if currentTime not provided, play/pause only
        webPlayer.currentTime = mediaPlayerStatus.currentTime / 1000;
    // play/pause based on whether the mediaplayer was playing/paused before resuming the app
    if (mediaPlayerStatus.isPaused && !webPlayer.paused) {
        alert("Pausing the web player at " + mediaPlayerStatus.currentTime / 1000);
    else if (!mediaPlayerStatus.isPaused && webPlayer.paused) {;
        alert("Playing the web player at " + mediaPlayerStatus.currentTime / 1000);