How to update MusicService playlist properly?

[rommansabbir]

My Scenario:

• I want to keep only one playlist on MusicService
• Based on user action I want to set another list as the primary list for MusicService

How I tried to achieve this by:

• Made a static list of SongDataModel [That's my POJO/Parse Object (Subclass), using ParseSDK]
• JsonSource class take this list as Input, then doing the conversion to respective model
• Added a MediaSessionReceiver to the MediaSessionConnector in the service class and Send custom action using MediaControllerCompat.TransportControls but the MediaSessionReceiver never called
• So, I have sent command to service class using MusicServiceConnection.sendCommand() and in the service class received command on MediaSessionConnector.PlaybackPreparer.onCommand()
• After getting the command, I'm trying to set a different list of SongDataModel by updating JsonSource & it's correspondent but wasn't able to get what I wanted to achieve.

Another approach I tried:

• Check if the static song source is the same or not in MusicService class
• If condition matched, stop the Music Service and clear the instance of MusicServiceConnection
• Then create new instance of MusicServiceConnection and setup everything again, but it throws exception java.lang.IllegalStateException: getRoot() called while not connected (state=CONNECT_STATE_CONNECTING) which is totally valid.