There are scenarios when our users expect an app to react automatically during disconnection. If they do something in the app while they are offline, the system resumes the state when a connection is available. In these cases, Background Sync is useful to us.
Think, for a second, about a chat app. As a user, I hope that, if I have a few spare seconds, I can see the messages I get from friends and have time to answer each message, close the app, then continue on with my life. However, what if I’m in a place with flaky or no connectivity? I probably can’t answer the messages ...
