Is it possible to make app working at background when it's actually not activated (via tapping) by user.
For example i have an app, that runs cafe. And in this cafe chief is baking some food. When user disables app (running other apps, etc) i need baking to keep going and when dish is ready (for example remote server that serves app sends notification to user's iPad's Cafe-App) i want to send a notification to user saying "Your dish in Cafe-App is ready. Go and serve it before it get burn".
Is it possible?
Which approach i should use?
Is there any topics/docs describing this problem?
This looks like solution: