tablet-app/lib/Components/video_viewer_youtube.dart

import 'dart:convert';

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:manager_api/api.dart';
import 'package:tablet_app/constants.dart';
import 'package:youtube_player_iframe/youtube_player_iframe.dart' as iframe;
import 'package:youtube_player_flutter/youtube_player_flutter.dart';

class VideoViewerYoutube extends StatefulWidget {
  final String videoUrl;
  VideoViewerYoutube({required this.videoUrl});

  @override
  _VideoViewerYoutube createState() => _VideoViewerYoutube();
}

class _VideoViewerYoutube extends State<VideoViewerYoutube> {
  iframe.YoutubePlayer? _videoViewWeb;
  YoutubePlayer? _videoView;

  @override
  void initState() {
    String? videoId;
    if (widget.videoUrl.length > 0 ) {
      videoId = YoutubePlayer.convertUrlToId(widget.videoUrl);

      if (kIsWeb) {
        final _controllerWeb = iframe.YoutubePlayerController(
          params: iframe.YoutubePlayerParams(
              mute: false,
              showControls: true,
              showFullscreenButton: false,
              loop: true,
              showVideoAnnotations: false,
              strictRelatedVideos: false,
              enableKeyboard: false,
              enableCaption: false,
              pointerEvents: iframe.PointerEvents.auto
          ),
        );

        _controllerWeb.loadVideo(widget.videoUrl);

        _videoViewWeb = iframe.YoutubePlayer(
          controller: _controllerWeb,
          //showVideoProgressIndicator: false,
          /*progressIndicatorColor: Colors.amber,
          progressColors: ProgressBarColors(
            playedColor: Colors.amber,
            handleColor: Colors.amberAccent,
          ),*/
        );
      } else {
        videoId = YoutubePlayer.convertUrlToId(widget.videoUrl);
        YoutubePlayerController _controller = YoutubePlayerController(
          initialVideoId: videoId!,
          flags: YoutubePlayerFlags(
            autoPlay: true,
            controlsVisibleAtStart: false,
            loop: true,
            hideControls: false,
            hideThumbnail: false,
          ),
        );


        _videoView = YoutubePlayer(
          controller: _controller,
          //showVideoProgressIndicator: false,
          progressIndicatorColor: Colors.amber,
          progressColors: ProgressBarColors(
            playedColor: Colors.amber,
            handleColor: Colors.amberAccent,
          ),
        );
      }
      super.initState();
    }
  }

  @override
  void dispose() {
    _videoView = null;
    _videoViewWeb = null;
    super.dispose();
  }

  @override
  Widget build(BuildContext context) => widget.videoUrl.length > 0 ?
  (kIsWeb ? _videoViewWeb! : _videoView!):
  Center(child: Text("La vidéo ne peut pas être affichée, l'url est incorrecte", style: new TextStyle(fontSize: kNoneInfoOrIncorrect)));
}