How to disable Landscape mode in Flutter

This article shows you how to disable the landscape mode in Flutter.

The Steps

1. Import the services library to your main.dart file:

import 'package:flutter/services.dart';

Note that the services library comes along with Flutter and you DO NOT need to install any third-party plugin.

2. Add the code snippet below to the main() function in your main.dart file:

void main() {
  // add these lines
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setPreferredOrientations(
      [DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]);

  // run app
  runApp(MyApp());
}

3. Restart your app (not using hot reload) and check the results by rotating the Android and iOS simulators.

A Complete Example

Preview:

The full code:

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setPreferredOrientations(
      [DeviceOrientation.portraitUp, DeviceOrientation.portraitDown]);

  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Kindacode.com',
      home: HomePage(),
    );
  }
}

class HomePage extends StatelessWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Kindacode.com'),
      ),
      body: const Center(
        child: Text(
          'Hello',
          style: TextStyle(fontSize: 100),
        ),
      ),
    );
  }
}

If you want to display different content based on device orientation instead of disabling the landscape mode, read also this article: Flutter – Show different content based on device orientation.

If you would like to learn more about Flutter, take a look at the following articles:

• Flutter SliverList
• Flutter Transform examples – Making fancy effects
• Flutter: Scrolling to the desired item in a ListView
• Flutter Cupertino Button – Tutorial and Examples

You can also check out our Flutter category page or Dart category page for the latest tutorials and examples.