Flutter: Update Widgets On Resume?

Question

In Flutter, is there a way to update widgets when the user leaves the app and come right back to it? My app is time based, and it would be helpful to update the time as soon

Answer 1

Using system Channel:

import 'package:flutter/services.dart';

SystemChannels.lifecycle.setMessageHandler((msg){
  debugPrint('SystemChannels> $msg');
  if(msg==AppLifecycleState.resumed.toString())setState((){});
});

`