Flutter App life cycle

Basically when we are writing a code for any Native applications, We will look for a life cycle events to handle some specific scenarios. Its like handling Thanos gauntlet snap to blip 😇😇

Flutter comes with life cycle events to handle app life cycle for android & ios.

Let's see the code.

To consume the life cycle event, we need to have Stateful widget with WidgetsBindingObserver mixin.

class _HomePageState extends State<HomePage> with WidgetsBindingObserver { 

The mixin WidgetsBindingObserver provides an override didChangeAppLifecycleState where we will notified for certain app life cycle state changes.

 @override void didChangeAppLifecycleState(AppLifecycleState state) { switch (state) { case AppLifecycleState.resumed: print('app resumed'); break; case AppLifecycleState.paused: print('app paused'); break; case AppLifecycleState.inactive: print('app inactive'); break; case AppLifecycleState.detached: default: print('app detached'); break; } } 

Finally to get work all these stuff, we need to inform or observe the app life cycle changes using

@override void initState() { super.initState(); WidgetsBinding.instance!.addObserver(this); } 

Ofcourse dont forget to remove observer on dispose

@override void dispose() { super.dispose(); WidgetsBinding.instance!.removeObserver(this); } 

That's it, we can now handle the app as per the app lifecycle.

For Full sample Github

Happy Fluttering 😇😇