How to set landscape orientation mode for flutter app?

问题

I was looking for code which can set orientation of my flutter app landscape forcefully.

回答1:

Enable forcefully

Import package: import 'package:flutter/services.dart'; in main.dart file

1. Landscape mode:

// Set landscape orientation
SystemChrome.setPreferredOrientations([
  DeviceOrientation.landscapeLeft,
  DeviceOrientation.landscapeRight,
]);

2. Portrait mode:

// Set portrait orientation
SystemChrome.setPreferredOrientations([
   DeviceOrientation.portraitDown,
   DeviceOrientation.portraitUp,
]);

回答2:

import 'package:flutter/services.dart';

void main()  {
   WidgetsFlutterBinding.ensureInitialized();
   SystemChrome.setPreferredOrientations([DeviceOrientation.landscapeLeft])
   .then((_) {
    runApp(new MyApp());
  });
}

来源：https://stackoverflow.com/questions/51806662/how-to-set-landscape-orientation-mode-for-flutter-app