flutterEmpty/lib/screens/guide_screen.dart

import 'package:assets_audio_player/assets_audio_player.dart';
import 'package:flutter/material.dart';
import '../components/background.dart';
import '../components/playing_control.dart';
import '../components/position_seek_widget.dart';
import '../constants.dart';

class GuideScreen extends StatefulWidget {
  @override
  _GuideScreenState createState() => _GuideScreenState();
}

class _GuideScreenState extends State<GuideScreen> {
  Audio find(List<Audio> source, String fromPath) {
    return source.firstWhere((element) => element.path == fromPath);
  }

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    albumBloc.guide('guide', 'guide');
  }

  @override
  void dispose() {
    // TODO: implement dispose
    super.dispose();
    assetsAudioPlayer.stop();
  }

  @override
  Widget build(BuildContext context) {
    return Background(
      image: Container(
        height: double.infinity,
        width: double.infinity,
        decoration: BoxDecoration(
            image: DecorationImage(
                image: AssetImage('assets/images/background_config.png'),
                fit: BoxFit.cover)),
      ),
      child: Scaffold(
        backgroundColor: Colors.transparent,
        appBar: AppBar(
          title: Text('GUIDE'),
          centerTitle: true,
          //actions: [IconButton(icon: Icon(Icons.close), onPressed: () {
//                Navigator.pop(context);
          //            })],
          backgroundColor: Colors.transparent,
          elevation: 0.0,
        ),
        body: SingleChildScrollView(
          physics: BouncingScrollPhysics(),
          child: Column(
            children: [
              PlayerBuilder.isPlaying(
                  player: assetsAudioPlayer,
                  builder: (context, isPlaying) {
                    return isPlaying
                        ? assetsAudioPlayer.builderCurrent(
                            builder: (context, playing) {
                            if (playing == null) {
                              return SizedBox();
                            }
                            final myAudio =
                                find(audios, playing.audio.assetAudioPath);

                            return Padding(
                              padding: const EdgeInsets.only(
                                  left: 8.0, right: 8.0, bottom: 10),
                              child: Column(
                                children: <Widget>[
                                  assetsAudioPlayer.builderRealtimePlayingInfos(
                                      builder: (context, infos) {
                                    if (infos == null) {
                                      return SizedBox();
                                    }
                                    return Column(
                                      children: [
                                        Text(
                                          myAudio.metas.title,
                                          style: TextStyle(fontSize: 14),
                                        ),
                                        SizedBox(
                                          height: 10.0,
                                        ),
                                        Container(
                                          decoration: BoxDecoration(
                                              borderRadius:
                                                  BorderRadius.circular(10),
                                              border: Border.all(
                                                  color: Colors.white60)),
                                          child: ClipRRect(
                                            borderRadius:
                                                BorderRadius.circular(10.0),
                                            child: Image.network(
                                              myAudio.metas.image.path,
                                              height: 200,
                                              fit: BoxFit.fill,
                                            ),
                                          ),
                                        ),
                                        SizedBox(
                                          height: 10.0,
                                        ),
                                        PositionSeekWidget(
                                          currentPosition:
                                              infos.currentPosition,
                                          duration: infos.duration,
                                          seekTo: (to) {
                                            assetsAudioPlayer.seek(to);
                                          },
                                        ),
                                      ],
                                    );
                                  }),
                                  assetsAudioPlayer.builderLoopMode(
                                    builder: (context, loopMode) {
                                      return PlayerBuilder.isPlaying(
                                          player: assetsAudioPlayer,
                                          builder: (context, isPlaying) {
                                            return PlayingControls(
                                              loopMode: loopMode,
                                              isPlaying: isPlaying,
                                              isPlaylist: true,
                                              onStop: () {
                                                assetsAudioPlayer.stop();
                                              },
                                              toggleLoop: () {
                                                assetsAudioPlayer.toggleLoop();
                                              },
                                              onPlay: () {
                                                assetsAudioPlayer.playOrPause();
                                              },
                                              onNext: () {
                                                //_assetsAudioPlayer.forward(Duration(seconds: 10));
                                                assetsAudioPlayer.next(
                                                    keepLoopMode:
                                                        true /*keepLoopMode: false*/);
                                              },
                                              onPrevious: () {
                                                assetsAudioPlayer.previous(
                                                    /*keepLoopMode: false*/);
                                              },
                                            );
                                          });
                                    },
                                  ),
                                ],
                              ),
                            );
                          })
                        : SizedBox();
                  }),
              Divider(
                color: Colors.teal[700],
                height: 5,
              ),
              StreamBuilder(
                stream: albumBloc.albumGuide,
                builder: (context, snapshot) {
                  if (!snapshot.hasData) {
                    return Center(
                      child: CircularProgressIndicator(),
                    );
                  }
                  return ListView.separated(
                      shrinkWrap: true,
                      padding: EdgeInsets.only(
                          top: 10, left: 10, right: 10, bottom: 50),
                      physics: BouncingScrollPhysics(),
                      separatorBuilder: (BuildContext context, int index) =>
                          Divider(
                            color: Colors.white30,
                          ),
                      itemCount: snapshot.data.result.length,
                      itemBuilder: (BuildContext context, int index) {
                        return ListTile(
                          leading: Image.network(
                            kConfig['content'] +
                                snapshot.data.result[index].poster.filename,
                            fit: BoxFit.fill,
                            width: 60,
                            height: 60,
                          ),
                          trailing: Icon(Icons.play_circle_outline),
                          title: Text(
                            snapshot.data.result[index].title,
                            overflow: TextOverflow.ellipsis,
                            style: TextStyle(
                                fontSize: 14, fontWeight: FontWeight.normal),
                          ),
                          onTap: () async {
                            //print(snapshot.data.result[index].type);
                            //print(snapshot.data.result[index].section);
                            //print(snapshot.data.result[index].title);
                            //print(kUrl + snapshot.data.result[index].poster.filename);
                            //print(kUrl + snapshot.data.result[index].naration.filename);
                            audios = <Audio>[
                              Audio.network(
                                kConfig['content'] +
                                    snapshot
                                        .data.result[index].naration.filename,
                                metas: Metas(
                                  id: "Online",
                                  title: snapshot.data.result[index].title,
                                  artist: snapshot.data.result[index].section,
                                  album: snapshot.data.result[index].type,
                                  image: MetasImage.network(kConfig['content'] +
                                      snapshot
                                          .data.result[index].poster.filename),
                                ),
                              ),
                            ];

                            try {
                              await assetsAudioPlayer.open(
                                audios[0],
                                autoStart: true,
                                showNotification: false,
                                playInBackground: PlayInBackground.enabled,
                                audioFocusStrategy: AudioFocusStrategy.request(
                                    resumeAfterInterruption: true,
                                    resumeOthersPlayersAfterDone: true),
                                headPhoneStrategy:
                                    HeadPhoneStrategy.pauseOnUnplug,
                              );
                            } catch (e) {
                              print(e);
                            }
                          },
                        );
                      });
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}