Pull request

Description

This PR simplifies the usage of RemoteMediaClient in PillarboxCastPlayer by providing a withRemoteClient method that takes care of ensuring that the RemoteMediaClient is not null, optionally invalidating the state, and returning a Futures.immediateVoidFuture().

Example:

fun handleSomeCommand(): ListenableFuture<*> = withRemoteClient { // this: RemoteMediaClient
    queueShuffle(null)
}

Changes made

• Add a withRemoteClient() method to PillarboxCastPlayer.
• Update PillarboxCastOptionProvider to use constants for the different receiver ids.

Checklist

• APIs have been properly documented (if relevant).
• The documentation has been updated (if relevant).
• New unit tests have been written (if relevant).
• The demo has been updated (if relevant).