tablet-app/lib/Screens/Video/video_view.dart

import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:managerapi/api.dart';
import 'package:tablet_app/constants.dart';
import 'package:youtube_player_flutter/youtube_player_flutter.dart';

class VideoViewWidget extends StatefulWidget {
  final SectionDTO section;
  VideoViewWidget({this.section});

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

class _VideoViewWidget extends State<VideoViewWidget> {
  YoutubePlayer _videoView;
  VideoDTO videoDTO;

  @override
  void initState() {
    print(widget.section.data);
    videoDTO = VideoDTO.fromJson(jsonDecode(widget.section.data));
    print(videoDTO);

    String videoId;
    if (videoDTO.source_ != null && videoDTO.source_.length > 0 ) {
      videoId = YoutubePlayer.convertUrlToId(videoDTO.source_);

      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;
    super.dispose();
  }

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