# All Classes and Interfaces

Class
Description
MediaSessionBuilder
Media Session builder allowing customizations
MediaSessionPlugin
MediaSessionPlugin integrates castLabs Player SDK with AndroidX Media2 session APIs.
SessionCallbackBuilder
Builds a `MediaSession.SessionCallback` with various collaborators.
SessionCallbackBuilder.AllowedCommandProvider
Provides allowed commands for `MediaController`.
SessionCallbackBuilder.CustomCommandProvider
Callbacks for querying what custom commands are supported, and for handling a custom command when a controller sends it.
SessionCallbackBuilder.DefaultAllowedCommandProvider
Default implementation of `SessionCallbackBuilder.AllowedCommandProvider` that behaves as follows: Accepts connection requests from controller if any of the following conditions are met: Controller is in the same package as the session.
SessionCallbackBuilder.DisconnectedCallback
Callback for handling controller disconnection.
SessionCallbackBuilder.MediaIdMediaItemProvider
A `SessionCallbackBuilder.MediaItemProvider` that creates media items containing only a media ID.
SessionCallbackBuilder.MediaItemProvider
Provides the `MediaItem`.
SessionCallbackBuilder.PostConnectCallback
Callback for handling extra initialization after the connection.
SessionCallbackBuilder.RatingCallback
Callback receiving a user rating for a specified media id.
SessionCallbackBuilder.SkipCallback
Callback receiving skip backward and skip forward.