Does anyone know how to use Now Playing View?

Apple documentation is vague. After adding the view to an empty view controller then what?

What exactly are you trying to do and what documentation are you referring to?

I am working on a music app on watchOS which accesses live streams from public radios and I would like to use the Now Playing View to show which station has been currently selected with its respective controls. In Apple’s online developer documentation they just say to add a Now Playing View to an empty View controller and that the system would handle the rest, ie, would detect the source and display it. But when I Present the view it just says “Not Playing” and the Play/pause button does nothing.

I haven’t used that functionality but hopefully with that further explanation from you, someone else might be able to help.