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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:

Play a single track

JavaScript:

↔️Median JavaScript Bridge

Create an object with the URL of the track:

JavaScript

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

OR

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

JavaScript

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

THEN

Call playTrack function with the track object

JavaScript

median.backgroundMedia.playTrack(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

HTML:

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

Stop MediaPlayer

HTML:

<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):

HTML:

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

JavaScript:

↔️Median JavaScript Bridge

Declare a function to load the JavaScript bridge URL:

JavaScript

// Declare a callback function to get player status
function playerStatusCallback(status){
      console.log(status);
}

Method 2 (Using Promise):

HTML:

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

JavaScript:

↔️Median JavaScript Bridge

Declare an async function to wait for player status:

JavaScript

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.

HTML:

<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.

JavaScript:

↔️Median JavaScript Bridge

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

JavaScript

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

HTML:

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

Stream a Playlist

HTML:

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

JavaScript:

↔️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.

JavaScript

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
Album: APP_NAME
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