Can't play, but no error occured.

[MCredbear]

Flutter Version

My version : 2.11.0-0.0.pre.501

Lib Version

My version : 3.0.4

Platform (Android / iOS / web) + version

Platform : Android

Describe the bug

I created this class:

import 'package:assets_audio_player/assets_audio_player.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:mobx/mobx.dart';
import 'package:netease_cloudmusic_flutter/api/song_url.dart';

import 'stores/song.dart';
import 'stores/player_store.dart';

final Player player = Player();

class Player {
  AssetsAudioPlayer _player = AssetsAudioPlayer();
  void updatePlaylist(ObservableList<Song> songs) =>
      storePlayer.updatePlaylist(songs);
  Future<void> play(int index) async {
    String _songUrl = await songUrl(storePlayer.playlist[index].id);
    if (_songUrl != '') {
      _player.open(
        Playlist(audios: [
          Audio.network(_songUrl,
              metas: Metas(
                  title: storePlayer.playlist[index].name,
                  artist: storePlayer.playlist[index].combinedArtistsName(),
                  image: MetasImage.network(
                      storePlayer.playlist[index].album.coverUrl),
                  album: storePlayer.playlist[index].album.name),
              cached: true)
        ]),
        loopMode: LoopMode.single,
        showNotification: true,
        notificationSettings: NotificationSettings(
          customPrevAction: (player) => play((index != 0) ? index - 1 : index),
          customNextAction: (player) =>
              play((index != storePlayer.playlist.length) ? index + 1 : index),
        ),
      );
      print(_player.playlist?.audios);
    } else {
      Fluttertoast.showToast(msg: "be banned from NetEase");
    }
  }
}

Then I ran player.play(index) in other places, I could see print(_player.playlist?.audios) was pringting [Audio{.......}], but I changed the index, the printed [Audio{.......}] didn't changed (I was sure there wasn't any problem with storePlayer.playlist). _player also printed something, like /data/user/0/com.example.netease_cloudmusic_flutter/cache/https___m10.music.126.net_20220312211651_76680c50e4474620e03775cd42531994_ymusic_0358_070c_0008_428833216f0f1386ff2c7b31933182e7.mp3, but it only printed once.

[MCredbear]

During all my trying the audio wasn't playing.

[kalismeras61]

Try something like below.

• Please add open method inside try catch and don't forget to add await before opening player as it is a future.

[MCredbear]

Try something like below.

* Please add open method inside try catch and don't forget to add await before opening player as it is a future.

I tried, still no new reports.And await didn't work.

[MCredbear]

However, this was useful:

      _player.playlist?.audios[0] = Audio.network(_songUrl,
          metas: Metas(
              title: storePlayer.playlist[index].name,
              artist: storePlayer.playlist[index].combinedArtistsName(),
              image: MetasImage.network(
                  storePlayer.playlist[index].album.coverUrl),
              album: storePlayer.playlist[index].album.name),
          cached: true);
      _player.playlistPlayAtIndex(0);

But I thought it was not a good solution.

[MCredbear]

This partially solved my problem (order of await _player.open and _player.playlist?.audios[0] = Audio.network didn't matter) :

import 'package:assets_audio_player/assets_audio_player.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:mobx/mobx.dart';
import 'package:netease_cloudmusic_flutter/api/song_url.dart';

import 'stores/song.dart';
import 'stores/player_store.dart';

final Player player = Player();

class Player {
  final AssetsAudioPlayer _player = AssetsAudioPlayer();
  late int index;
  void updatePlaylist(ObservableList<Song> songs) =>
      storePlayer.updatePlaylist(songs);
  Future<void> play(int index) async {
    this.index = index;
    String _songUrl = await songUrl(storePlayer.playlist[this.index].id);
    if (_songUrl != '') {
      _player.playlist?.audios[0] = Audio.network(_songUrl,
          metas: Metas(
              title: storePlayer.playlist[this.index].name,
              artist: storePlayer.playlist[this.index].combinedArtistsName(),
              image: MetasImage.network(
                  storePlayer.playlist[this.index].album.coverUrl),
              album: storePlayer.playlist[this.index].album.name),
          cached: false);
      await _player.open(
        Playlist(audios: [
          Audio.network(_songUrl,
              metas: Metas(
                  title: storePlayer.playlist[this.index].name,
                  artist:
                      storePlayer.playlist[this.index].combinedArtistsName(),
                  image: MetasImage.network(
                      storePlayer.playlist[this.index].album.coverUrl),
                  album: storePlayer.playlist[this.index].album.name),
              cached: true)
        ]),
        loopMode: LoopMode.single,
        showNotification: true,
        notificationSettings: NotificationSettings(
          customPrevAction: (player) async =>
              await play((this.index != 0) ? this.index - 1 : this.index),
          customNextAction: (player) async => await play(
              (this.index != storePlayer.playlist.length)
                  ? this.index + 1
                  : this.index),
        ),
      );
      await _player.playlistPlayAtIndex(0);
    } else {
      Fluttertoast.showToast(msg: "be banned from NetEase");
    }
  }
}

But I wanted the first cached to be true (that truly enabled cache). If it was, I had to run player.play(index) twice to play (It seemed that the first time it started to cache, the second time it started to play).