SystemChrome.setEnabledSystemUIOverlays([])should do what you want.
You can bring it back with
SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values).
import it using
import 'package:flutter/services.dart';

SystemChrome.setEnabledSystemUIOverlays([])should do what you want.
You can bring it back with
SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values).
import it using
import 'package:flutter/services.dart';