First import the services package:
import 'package:flutter/services.dart';
This will give you access to the SystemChrome class, which "Controls specific aspects of the operating system's graphical interface and how it interacts with the application."
When you load the Widget, do something like this:
@override void initState(){ super.initState(); SystemChrome.setPreferredOrientations([ DeviceOrientation.landscapeRight, DeviceOrientation.landscapeLeft, ]); }
then when I leave the page, put it back to normal like this:
@override dispose(){ SystemChrome.setPreferredOrientations([ DeviceOrientation.landscapeRight, DeviceOrientation.landscapeLeft, DeviceOrientation.portraitUp, DeviceOrientation.portraitDown, ]); super.dispose(); }

First import the services package:
import `package:flutter/services.dart`;
This will give you access to the `SystemChrome` class, which `"Controls specific aspects of the operating system's graphical interface and how it interacts with the application."`
When you load the Widget, do something like this:
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-html -->
@override void initState(){ super.initState(); SystemChrome.setPreferredOrientations([ DeviceOrientation.landscapeRight, DeviceOrientation.landscapeLeft, ]); }
<!-- end snippet -->
then when I leave the page, put it back to normal like this:
<!-- begin snippet: js hide: false console: true babel: false -->
<!-- language: lang-html -->
@override dispose(){ SystemChrome.setPreferredOrientations([ DeviceOrientation.landscapeRight, DeviceOrientation.landscapeLeft, DeviceOrientation.portraitUp, DeviceOrientation.portraitDown, ]); super.dispose(); }
<!-- end snippet -->