video_player: ^2.9.2

Flutter Video player Example

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

void main() {
  runApp(
    MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("Jarbas Video Player"),
        ),
        body: MyWidget(),
      ),
    ),
  );
}

class MyWidget extends StatelessWidget {
  const MyWidget({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Default Layout"),
      ),
      body: Column(
        children: [
          Center(
            child: Text("Hello World!"),
          ),
          Container(
            color: Colors.blue,
            height: 100,
            width: 100,
            child: Center(
              child: Text("Hello World!"),
            ),
          ),
          ElevatedButton(
              onPressed: () {
                Navigator.push(
                  context,
                  MaterialPageRoute(
                    builder: (context) => Scaffold(
                      body: Column(
                        children: [
                          Jarbasvideoplayer(
                            urlVideo: 'http://commondatastorage.googleapis.com/'
                                'gtv-videos-bucket/sample/BigBuckBunny.mp4',
                          ),
                          SizedBox(height: 20),
                          ElevatedButton(
                            onPressed: () {
                              Navigator.pop(context);
                            },
                            child: Text("Voltar removendo da arvore"),
                          ),
                        ],
                      ),
                    ),
                  ),
                );
              },
              child: Text("Ir para o video"))
        ],
      ),
    );
  }
}

class Jarbasvideoplayer extends StatefulWidget {
  const Jarbasvideoplayer({super.key, this.urlVideo});

  final String? urlVideo;

  @override
  State<Jarbasvideoplayer> createState() => _JarbasvideoplayerState();
}

class _JarbasvideoplayerState extends State<Jarbasvideoplayer> {
  late VideoPlayerController controllerVideo;
  late Future<void> _initializeVideoPlayerFuture;

  late _JarbasvideoplayerState instance;

  @override
  void initState() {
    super.initState();

    controllerVideo = VideoPlayerController.networkUrl(
      Uri.parse(
        widget.urlVideo!,
      ),
    );

    controllerVideo.setLooping(true);
    _initializeVideoPlayerFuture =
        controllerVideo.initialize().whenComplete(() {
      controllerVideo.play();
    });

    instance = _JarbasvideoplayerState();
  }

  @override
  void dispose() {
    controllerVideo.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Builder(builder: (BuildContext context) {
      return FutureBuilder(
          future: _initializeVideoPlayerFuture,
          builder: (context, snapshot) {
            if (snapshot.connectionState == ConnectionState.waiting) {
              return Center(
                child: CircularProgressIndicator(
                  color: Colors.blue,
                ),
              );
            } else if (snapshot.connectionState == ConnectionState.done) {
              return Column(
                mainAxisAlignment: MainAxisAlignment.center,
                mainAxisSize: MainAxisSize.max,
                children: [
                  AspectRatio(
                      aspectRatio: controllerVideo.value.aspectRatio,
                      child: Stack(
                        children: [
                          VideoPlayer(controllerVideo),
                          GestureDetector(
                              onTap: () {
                                setState(() {
                                  if (controllerVideo.value.isPlaying) {
                                    controllerVideo.pause();
                                  } else {
                                    controllerVideo.play();
                                  }
                                });
                              },
                              child: Opacity(
                                  opacity: 0,
                                  child: Container(
                                    color: Colors.black,
                                  ))),
                          Column(
                            mainAxisAlignment: MainAxisAlignment.start,
                            mainAxisSize: MainAxisSize.max,
                            children: [
                              Row(
                                mainAxisAlignment: MainAxisAlignment.end,
                                children: [
                                  Padding(
                                    padding: const EdgeInsets.all(10.0),
                                    child: IconButton(
                                        color: Colors.blue,
                                        style: ButtonStyle(
                                            backgroundColor:
                                                WidgetStatePropertyAll(
                                                    Colors.blue)),
                                        alignment: Alignment(0.2, 0.10),
                                        onPressed: () {
                                          setState(() {
                                            if (controllerVideo.value.volume >
                                                0) {
                                              controllerVideo.setVolume(0);
                                            } else {
                                              controllerVideo.setVolume(100);
                                            }
                                          });
                                        },
                                        icon: Icon(
                                          controllerVideo.value.volume == 0
                                              ? Icons.volume_off
                                              : Icons.volume_up,
                                          color: Colors.white,
                                        )),
                                  ),
                                ],
                              ),
                            ],
                          ),
                        ],
                      )),
                  SizedBox(height: 20),
                  ElevatedButton(
                      onPressed: () {
                        Navigator.push(
                          context,
                          MaterialPageRoute(
                            builder: (context) => MyWidgetTheSecond(),
                          ),
                        );
                      },
                      child: Text("Ir para o prox tela, mantendo na arvore"))
                ],
              );
            } else {
              return Text("Video não carregado!");
            }
          });
    });
  }
}

class MyWidgetTheSecond extends StatelessWidget {
  const MyWidgetTheSecond({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(),
      body: Placeholder(),
    );
  }
}