the code after navigator.pushReplacement still executes? (Flutter) - flutter

Question

This works. But I don't understand the exact flow.
class _LoadingPageState extends State<LoadingPage> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: FutureBuilder(
future: this.checkGpsYLocation(context),
builder: (BuildContext context, AsyncSnapshot snapshot) {
print(snapshot.data);
if ( snapshot.hasData ) {
return Center(child: Text( snapshot.data ) );
} else {
return Center(child: CircularProgressIndicator(strokeWidth: 2 ) );
}
},
),
);
}
Future checkGpsYLocation( BuildContext context ) async {
// PermisoGPS
final permisoGPS = await Permission.location.isGranted;
// GPS está activo
final gpsActivo = await Geolocator().isLocationServiceEnabled();
if ( permisoGPS && gpsActivo ) {
Navigator.pushReplacement(context, navegarMapaFadeIn(context, MapaPage() ));
return '';
} else if ( !permisoGPS ) {
Navigator.pushReplacement(context, navegarMapaFadeIn(context, AccesoGpsPage() ));
return 'Es necesario el permiso de GPS';
} else {
return 'Active el GPS';
}
}
}
When Navigator.pushReplacement executes. What happens with rest of code after, like the return 'Es necesario el permiso GPS'. Does it still execute? Or is it ignored by disposing widget (Assuming pushReplacement disposes it)?

Answer 1

Flutter is a normal code after all, statments are executed in sequence one after another, unless of course you have async, loop, recursion etc.
And thats applys also to all Navigator methods. Yes the UI changes but the code flow will continue normaly till it hit a return (or anything else that could end the flow like break, the end of void method....).
Hope that makes clear