With Media3 1.0.0, we could handle cast device volume by implementing COMMAND_GET_DEVICE_VOLUME, COMMAND_SET_DEVICE_VOLUME and COMMAND_ADJUST_DEVICE_VOLUME commands in SimpleBasePlayer. We used cast API to get/set device volume. For implementation, see this and this. Here, RemoteDeviceVolumeProvider is a simple abstraction that deals with the cast API. As a result, we could adjust the cast device volume using volume rockers during an active cast session.

With Media3 1.1.0, the latter two commands are now deprecated in favour of COMMAND_SET_DEVICE_VOLUME_WITH_FLAGS and COMMAND_ADJUST_DEVICE_VOLUME_WITH_FLAGS. However, when we replaced the deprecated commands with the new ones in our existing implementation, the SimpleBasePlayer stopped invoking handleSetDeviceVolume and other related handlers. As a result, nothing happens on pressing volume rockers during a cast playback session.

But if we continue using the deprecated commands, everything works as expected.

Is it a bug or an intended change? More importantly, how do we continue to use volume rockers to adjust cast device volume when the cast session is active while incorporating the latest changes?