Month: August 2021

  • Flutter video player example

    Flutter video player example

    Very easy Flutter video player example, using chewie and and video_player library.

    The app plays video from a remote HTTP URL and it plays in portrait mode, when you exit the video player it maintains portrait mode on your device.

    pubspec.yaml

    name: video_player
    description: Flutter video player project.
    
    # The following line prevents the package from being accidentally published to
    # pub.dev using `pub publish`. This is preferred for private packages.
    publish_to: 'none' # Remove this line if you wish to publish to pub.dev
    
    # The following defines the version and build number for your application.
    # A version number is three numbers separated by dots, like 1.2.43
    # followed by an optional build number separated by a +.
    # Both the version and the builder number may be overridden in flutter
    # build by specifying --build-name and --build-number, respectively.
    # In Android, build-name is used as versionName while build-number used as versionCode.
    # Read more about Android versioning at https://developer.android.com/studio/publish/versioning
    # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
    # Read more about iOS versioning at
    # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
    version: 1.0.0+1
    
    environment:
      sdk: ">=2.12.0 <3.0.0"
    
    dependencies:
      flutter:
        sdk: flutter
    
    
      # The following adds the Cupertino Icons font to your application.
      # Use with the CupertinoIcons class for iOS style icons.
      cupertino_icons: ^1.0.2
      video_player: ^2.1.14
      chewie: ^1.2.2
      
    
    dev_dependencies:
      flutter_test:
        sdk: flutter
    
    # For information on the generic Dart part of this file, see the
    # following page: https://dart.dev/tools/pub/pubspec
    
    # The following section is specific to Flutter.
    flutter:
    
      # The following line ensures that the Material Icons font is
      # included with your application, so that you can use the icons in
      # the material Icons class.
      uses-material-design: true
    
      # To add assets to your application, add an assets section, like this:
      #assets:
      #   - images/a_dot_ham.jpeg
    
      # An image asset can refer to one or more resolution-specific "variants", see
      # https://flutter.dev/assets-and-images/#resolution-aware.
    
      # For details regarding adding assets from package dependencies, see
      # https://flutter.dev/assets-and-images/#from-packages
    
      # To add custom fonts to your application, add a fonts section here,
      # in this "flutter" section. Each entry in this list should have a
      # "family" key with the font family name, and a "fonts" key with a
      # list giving the asset and other descriptors for the font. For
      # example:
      # fonts:
      #   - family: Schyler
      #     fonts:
      #       - asset: fonts/Schyler-Regular.ttf
      #       - asset: fonts/Schyler-Italic.ttf
      #         style: italic
      #   - family: Trajan Pro
      #     fonts:
      #       - asset: fonts/TrajanPro.ttf
      #       - asset: fonts/TrajanPro_Bold.ttf
      #         weight: 700
      #
      # For details regarding fonts from package dependencies,
      # see https://flutter.dev/custom-fonts/#from-packages
    

    In your main function, make sure you run the app in portrait mode,

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

    main.dart

    import 'package:flutter/material.dart';
    import 'package:flutter/services.dart';
    import 'package:inspiration_show/pages/home.dart';
    
    void main() {
      WidgetsFlutterBinding.ensureInitialized();
    
      SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp])
          .then((_) {
        runApp(MyApp());
      });
    }
    
    class MyApp extends StatelessWidget {
      // This widget is the root of your application.
      @override
      Widget build(BuildContext context) {
        return MaterialApp(
          title: 'Video Player',
          theme: ThemeData(
            // This is the theme of your application.
            //
            // Try running your application with "flutter run". You'll see the
            // application has a blue toolbar. Then, without quitting the app, try
            // changing the primarySwatch below to Colors.green and then invoke
            // "hot reload" (press "r" in the console where you ran "flutter run",
            // or simply save your changes to "hot reload" in a Flutter IDE).
            // Notice that the counter didn't reset back to zero; the application
            // is not restarted.
            primarySwatch: Colors.red,
          ),
          home: MyHomePage(title: 'Video Player Demo Page'),
        );
      }
    }
    
    class MyHomePage extends StatefulWidget {
      MyHomePage({Key? key, required this.title}) : super(key: key);
    
      // This widget is the home page of your application. It is stateful, meaning
      // that it has a State object (defined below) that contains fields that affect
      // how it looks.
    
      // This class is the configuration for the state. It holds the values (in this
      // case the title) provided by the parent (in this case the App widget) and
      // used by the build method of the State. Fields in a Widget subclass are
      // always marked "final".
    
      final String title;
    
      @override
      _MyHomePageState createState() => _MyHomePageState();
    }
    
    class _MyHomePageState extends State<MyHomePage> {
      String appBarTitle = "Home";
    
      @override
      Widget build(BuildContext context) {
        // This method is rerun every time setState is called, for instance as done
        // by the _incrementCounter method above.
        //
        // The Flutter framework has been optimized to make rerunning build methods
        // fast, so that you can just rebuild anything that needs updating rather
        // than having to individually change instances of widgets.
        return Scaffold(
          appBar: AppBar(
            // Here we take the value from the MyHomePage object that was created by
            // the App.build method, and use it to set our appbar title.
            title: Text(appBarTitle),
          ),
          body: HomeWidget(),
        );
      }
    }
    

    home.dart

    import 'package:flutter/material.dart';
    import 'package:flutter/services.dart';
    import 'package:video_player/video_player.dart';
    import 'package:chewie/chewie.dart';
    
    class HomeWidget extends StatefulWidget {
      @override
      _VideoWidget createState() => _VideoWidget();
    }
    
    class _VideoWidget extends State<HomeWidget> {
      late VideoPlayerController videoPlayerController;
      late ChewieController chewieController;
    
      bool isReady = false;
    
      @override
      void initState() {
        super.initState();
        initializeVideoPlayer();
      }
    
      @override
      Widget build(BuildContext context) {
        return Container(
          margin: const EdgeInsets.all(16),
          child: Column(mainAxisAlignment: MainAxisAlignment.center, children: [
            Center(
              child: Container(
                height: 200,
                child: isReady == true
                    ? Chewie(controller: chewieController)
                    : Center(child: CircularProgressIndicator()),
              ),
            ),
          ]),
        );
      }
    
      @override
      void dispose() {
        super.dispose();
        videoPlayerController.dispose();
        chewieController.videoPlayerController.dispose();
    
        SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
      }
    
      Future<void> initializeVideoPlayer() async {
        videoPlayerController = VideoPlayerController.network(
            "https://file-examples-com.github.io/uploads/2017/04/file_example_MP4_1920_18MG.mp4");
        await Future.wait([videoPlayerController.initialize()]);
    
        chewieController = ChewieController(
            videoPlayerController: videoPlayerController,
            autoPlay: false,
            aspectRatio: 16 / 9,
            autoInitialize: true);
    
        setState(() {
          isReady = true;
        });
    
        chewieController.addListener(() {
          if (!chewieController.isFullScreen) {
            SystemChrome.setPreferredOrientations([DeviceOrientation.portraitUp]);
          }
        });
      }
    }
    

    Download source code

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