Update Widget when app is killed/terminated

Apple Podcast widget displays Now playing and Resume according to the current playback status
(Nothing impressive so far - my guess is it reloads data from UserDefaults after a timeline refresh is invoked on WidgetCenter).

But the cool thing is it can also update the label just after the app was killed via the app switcher and I can't figure out how.

I tried invoking a timeline refresh in
Code Block
applicationWillTerminate
with no results.

Is the app calling some method or is the widget responding to some notification?
Update Widget when app is killed/terminated
 
 
Q