flutter available top status bar hide and show code example
Example: how to hide the status bar and navigation bar in flutter
import 'package:flutter/services.dart';
@override
Widget build(BuildContext context) {
SystemChrome.setEnabledSystemUIOverlays([]);
return Container(
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.height,
child: Column('Some text'),
);
}