Not needed. This was part of the sample in the RandomMusicPlayer sample I used to help implement lock screen audio controls.
Added id that is used to tag whether the artist in the list is the "<unknown>" artist.
Added the Artist Unknown string and the Song Options dialog title.
Added strings for <unknown> (no artist) and Music (no album) to use throughout the application.
Fall back to Unknown Artist string. Shouldn't show this Fragment for an unknown artist, but just in case.
Fragment & Adapter to get all of an artist's 'singles' (songs without an album).