我如何在iOS中使用XCode在媒体播放器应用程序中使用类似的工具?

I am making a media player app. I have UITableViewControllers that are embedded in Navigation Controller. I would like to somehow make a view that would overlay potentially multiple (2?) of these tableviewcontrollers (one that shows the user's playlists, and the next would show the tracks in the playlist), but only at the bottom, like a now playing bar in (e.g.) Spotify's iOS app (as in the left bottom side of thisI am making a media player app. I have UITableV