- key
- the type of metadata that can be edited. The supported key is MediaMetadataEditor.RatingKeyByUser.
Flags the given key as being editable. This should only be used by metadata publishers, such as Android.Media.RemoteControlClient, which will declare the metadata field as eligible to be updated, with new values received through the NoType:android/media/RemoteControlClient$OnMetadataUpdateListener;Href=../../../reference/android/media/RemoteControlClient.OnMetadataUpdateListener.html interface.