tsacdop-podcast-app-android/lib/state/audio_state.dart

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import 'dart:async';
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import 'dart:convert';
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import 'dart:math' as math;
import 'package:audio_service/audio_service.dart';
import 'package:audio_session/audio_session.dart';
import 'package:dio/dio.dart';
import 'package:flutter/foundation.dart';
import 'package:just_audio/just_audio.dart';
import '../local_storage/key_value_storage.dart';
import '../local_storage/sqflite_localpodcast.dart';
import '../type/episodebrief.dart';
import '../type/play_histroy.dart';
import '../type/playlist.dart';
MediaControl playControl = MediaControl(
androidIcon: 'drawable/ic_stat_play_circle_filled',
label: 'Play',
action: MediaAction.play,
);
MediaControl pauseControl = MediaControl(
androidIcon: 'drawable/ic_stat_pause_circle_filled',
label: 'Pause',
action: MediaAction.pause,
);
MediaControl skipToNextControl = MediaControl(
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androidIcon: 'drawable/baseline_skip_next_white_24',
label: 'Next',
action: MediaAction.skipToNext,
);
MediaControl skipToPreviousControl = MediaControl(
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androidIcon: 'drawable/ic_action_skip_previous',
label: 'Previous',
action: MediaAction.skipToPrevious,
);
MediaControl stopControl = MediaControl(
androidIcon: 'drawable/baseline_close_white_24',
label: 'Stop',
action: MediaAction.stop,
);
MediaControl forwardControl = MediaControl(
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androidIcon: 'drawable/baseline_fast_forward_white_24',
label: 'forward',
action: MediaAction.fastForward,
);
MediaControl rewindControl = MediaControl(
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androidIcon: 'drawable/baseline_fast_rewind_white_24',
label: 'rewind',
action: MediaAction.rewind,
);
void _audioPlayerTaskEntrypoint() async {
AudioServiceBackground.run(() => AudioPlayerTask());
}
/// Sleep timer mode.
enum SleepTimerMode { endOfEpisode, timer, undefined }
enum PlayerHeight { short, mid, tall }
class AudioPlayerNotifier extends ChangeNotifier {
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final _dbHelper = DBHelper();
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final _positionStorage = KeyValueStorage(audioPositionKey);
final _autoPlayStorage = KeyValueStorage(autoPlayKey);
final _autoSleepTimerStorage = KeyValueStorage(autoSleepTimerKey);
final _defaultSleepTimerStorage = KeyValueStorage(defaultSleepTimerKey);
final _autoSleepTimerModeStorage = KeyValueStorage(autoSleepTimerModeKey);
final _autoSleepTimerStartStorage = KeyValueStorage(autoSleepTimerStartKey);
final _autoSleepTimerEndStorage = KeyValueStorage(autoSleepTimerEndKey);
final _fastForwardSecondsStorage = KeyValueStorage(fastForwardSecondsKey);
final _rewindSecondsStorage = KeyValueStorage(rewindSecondsKey);
final _playerHeightStorage = KeyValueStorage(playerHeightKey);
final _speedStorage = KeyValueStorage(speedKey);
final _skipSilenceStorage = KeyValueStorage(skipSilenceKey);
final _boostVolumeStorage = KeyValueStorage(boostVolumeKey);
final _volumeGainStorage = KeyValueStorage(volumeGainKey);
final _markListenedAfterSkipStorage =
KeyValueStorage(markListenedAfterSkipKey);
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final _playlistsStorgae = KeyValueStorage(playlistsAllKey);
final _playerStateStorage = KeyValueStorage(playerStateKey);
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/// Playing episdoe.
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EpisodeBrief _episode;
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/// Playlists include queue and playlists created by user.
List<Playlist> _playlists;
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/// Playing playlist.
Playlist _playlist;
/// Queue is the first playlist by default.
Playlist get _queue => _playlists.first;
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/// Player state.
AudioProcessingState _audioState = AudioProcessingState.none;
/// Player playing.
bool _playing = false;
/// Fastforward second.
int _fastForwardSeconds = 0;
/// Rewind seconds.
int _rewindSeconds = 0;
/// No slide, set true if slide on seekbar.
bool _noSlide = true;
/// Current episode duration.
int _backgroundAudioDuration = 0;
/// Current episode positin.
int _backgroundAudioPosition = 0;
/// Erroe maeesage.
String _remoteErrorMessage;
/// Seekbar value, min 0, max 1.0.
double _seekSliderValue = 0.0;
/// Record plyaer position.
int _lastPostion = 0;
/// Set true if sleep timer mode is end of episode.
bool _stopOnComplete = false;
/// Sleep timer timer.
Timer _stopTimer;
/// Sleep timer time left.
int _timeLeft = 0;
/// Start sleep timer.
bool _startSleepTimer = false;
/// Control sleep timer anamation.
double _switchValue = 0;
/// Sleep timer mode.
SleepTimerMode _sleepTimerMode = SleepTimerMode.undefined;
//Auto stop at the end of episode when you start play at scheduled time.
bool _autoSleepTimer;
//set autoplay episode in playlist
bool _autoPlay;
/// Datetime now.
DateTime _current;
/// Current position.
int _currentPosition;
/// Current speed.
double _currentSpeed = 1;
///Update episode card when setting changed
bool _episodeState = false;
/// Player height.
PlayerHeight _playerHeight;
/// Player skip silence.
bool _skipSilence;
/// Boost volumn
bool _boostVolume;
/// Boost volume gain.
int _volumeGain;
// ignore: prefer_final_fields
bool _playerRunning = false;
bool _markListened;
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@override
void addListener(VoidCallback listener) {
super.addListener(listener);
_initAudioData();
AudioService.connect();
}
@override
void dispose() async {
await AudioService.disconnect();
super.dispose();
}
/// Audio playing state.
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AudioProcessingState get audioState => _audioState;
int get backgroundAudioDuration => _backgroundAudioDuration;
int get backgroundAudioPosition => _backgroundAudioPosition;
double get seekSliderValue => _seekSliderValue;
String get remoteErrorMessage => _remoteErrorMessage;
bool get playerRunning => _playerRunning;
bool get buffering => _audioState != AudioProcessingState.ready;
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EpisodeBrief get episode => _episode;
/// Playlist provider.
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int get lastPositin => _lastPostion;
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List<Playlist> get playlists => _playlists;
Playlist get queue => _playlists.first;
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bool get playing => _playing;
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Playlist get playlist => _playlist;
/// Player control.
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bool get stopOnComplete => _stopOnComplete;
bool get startSleepTimer => _startSleepTimer;
SleepTimerMode get sleepTimerMode => _sleepTimerMode;
int get timeLeft => _timeLeft;
double get switchValue => _switchValue;
double get currentSpeed => _currentSpeed;
bool get episodeState => _episodeState;
bool get autoSleepTimer => _autoSleepTimer;
int get fastForwardSeconds => _fastForwardSeconds;
int get rewindSeconds => _rewindSeconds;
PlayerHeight get playerHeight => _playerHeight;
bool get skipSilence => _skipSilence;
bool get boostVolume => _boostVolume;
int get volumeGain => _volumeGain;
set setSwitchValue(double value) {
_switchValue = value;
notifyListeners();
}
set setEpisodeState(bool boo) {
_episodeState = !_episodeState;
notifyListeners();
}
set setPlayerHeight(PlayerHeight mode) {
_playerHeight = mode;
notifyListeners();
_savePlayerHeight();
}
Future<void> _initAudioData() async {
var index = await _playerHeightStorage.getInt(defaultValue: 0);
_playerHeight = PlayerHeight.values[index];
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_currentSpeed = await _speedStorage.getDouble(defaultValue: 1.0);
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_skipSilence = await _skipSilenceStorage.getBool(defaultValue: false);
_boostVolume = await _boostVolumeStorage.getBool(defaultValue: false);
_volumeGain = await _volumeGainStorage.getInt(defaultValue: 3000);
}
Future _savePlayerHeight() async {
await _playerHeightStorage.saveInt(_playerHeight.index);
}
Future _getAutoPlay() async {
var i = await _autoPlayStorage.getInt();
_autoPlay = i == 0;
}
Future _getAutoSleepTimer() async {
var i = await _autoSleepTimerStorage.getInt();
_autoSleepTimer = i == 1;
}
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Future<void> initPlaylist() async {
var playlistEntities = await _playlistsStorgae.getPlaylists();
_playlists = [
for (var entity in playlistEntities) Playlist.fromEntity(entity)
];
await _playlists.first.getPlaylist();
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await _getAutoPlay();
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var state = await _playerStateStorage.getPlayerState();
if (state[0] != '') {
_playlist = _playlists.firstWhere((p) => p.id == state[0],
orElse: () => _playlists.first);
} else {
_playlist = _playlists.first;
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}
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await _playlist.getPlaylist();
if (state[1] != '') {
_episode = await _dbHelper.getRssItemWithUrl(state[1]);
} else {
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_episode =
_playlist.episodes.isNotEmpty ? _playlist.episodes.first : null;
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}
_lastPostion = int.parse(state[2] ?? '0');
/// Save plays history if app is closed accidentally.
/// if (_lastPostion > 0 && _queue.episodes.isNotEmpty) {
/// final episode = _queue.episodes.first;
/// final duration = episode.duration * 1000;
/// final seekValue = duration != 0 ? _lastPostion / duration : 1.0;
/// final history = PlayHistory(
/// episode.title, episode.enclosureUrl, _lastPostion ~/ 1000, seekValue);
/// await _dbHelper.saveHistory(history);
/// }
await KeyValueStorage(lastWorkKey).saveInt(0);
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}
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Future<void> playFromLastPosition() async {
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if (_playlist.episodes.isNotEmpty) {
await _playlist.getPlaylist();
if (_episode == null || !_playlist.episodes.contains(_episode))
_episode = _playlist.episodes.first;
_audioState = AudioProcessingState.none;
_backgroundAudioDuration = 0;
_backgroundAudioPosition = 0;
_seekSliderValue = 0;
_playerRunning = true;
notifyListeners();
_startAudioService(_playlist,
position: _lastPostion ?? 0,
index: _playlist.episodes.indexOf(_episode));
}
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}
Future<void> playlistLoad(Playlist playlist) async {
var p = playlist;
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if (playlist.name != 'Queue') {
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await updatePlaylist(p, updateEpisodes: true);
}
_playlist = p;
notifyListeners();
if (playlist.episodeList.isNotEmpty) {
if (playerRunning) {
AudioService.customAction('setIsQueue', playlist.name == 'Queue');
AudioService.customAction('changeQueue',
[for (var e in p.episodes) jsonEncode(e.toMediaItem().toJson())]);
} else {
_backgroundAudioDuration = 0;
_backgroundAudioPosition = 0;
_seekSliderValue = 0;
_episode = playlist.episodes.first;
_audioState = AudioProcessingState.none;
_playerRunning = true;
notifyListeners();
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_startAudioService(_playlist, position: 0, index: 0);
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}
}
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}
Future<void> episodeLoad(EpisodeBrief episode,
{int startPosition = 0}) async {
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final episodeNew = await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
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//TODO load episode from last position when player running
if (playerRunning) {
final history = PlayHistory(_episode.title, _episode.enclosureUrl,
backgroundAudioPosition ~/ 1000, seekSliderValue);
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await _dbHelper.saveHistory(history);
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_queue.addToPlayListAt(episodeNew, 0);
await updatePlaylist(_queue);
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if (_playlist.name != 'Queue') {
AudioService.customAction('setIsQueue', true);
AudioService.customAction('changeQueue', [
for (var e in _queue.episodes) jsonEncode(e.toMediaItem().toJson())
]);
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_playlist = _queue;
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}
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await AudioService.addQueueItemAt(episodeNew.toMediaItem(), 0);
if (startPosition > 0) {
await AudioService.seekTo(Duration(milliseconds: startPosition));
}
_remoteErrorMessage = null;
notifyListeners();
if (episodeNew.isNew == 1) {
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await _dbHelper.removeEpisodeNewMark(episodeNew.enclosureUrl);
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}
} else {
await _queue.getPlaylist();
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_queue.addToPlayListAt(episodeNew, 0);
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_backgroundAudioDuration = 0;
_backgroundAudioPosition = 0;
_seekSliderValue = 0;
_episode = episodeNew;
_playerRunning = true;
notifyListeners();
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_startAudioService(_queue, position: startPosition);
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}
}
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Future<void> loadEpisodeFromPlaylist(EpisodeBrief episode) async {
if (_playlist.episodes.contains(episode)) {
var index = _playlist.episodes.indexOf(episode);
await AudioService.customAction('changeIndex', index);
}
}
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Future<void> _startAudioService(Playlist playlist,
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{int index = 0, int position = 0}) async {
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_stopOnComplete = false;
_sleepTimerMode = SleepTimerMode.undefined;
_switchValue = 0;
/// Connect to audio service.
if (!AudioService.connected) {
await AudioService.connect();
}
/// Get fastword and rewind seconds.
_fastForwardSeconds =
await _fastForwardSecondsStorage.getInt(defaultValue: 30);
_rewindSeconds = await _rewindSecondsStorage.getInt(defaultValue: 10);
/// Get if auto mark listened after skip
_markListened =
await _markListenedAfterSkipStorage.getBool(defaultValue: false);
/// Start audio service.
await AudioService.start(
backgroundTaskEntrypoint: _audioPlayerTaskEntrypoint,
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params: {'index': index, 'isQueue': playlist.name == 'Queue'},
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androidNotificationChannelName: 'Tsacdop',
androidNotificationColor: 0xFF4d91be,
androidNotificationIcon: 'drawable/ic_notification',
androidEnableQueue: true,
androidStopForegroundOnPause: true,
fastForwardInterval: Duration(seconds: _fastForwardSeconds),
rewindInterval: Duration(seconds: _rewindSeconds));
//Check autoplay setting, if true only add one episode, else add playlist.
await _getAutoPlay();
if (_autoPlay) {
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for (var episode in playlist.episodes) {
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await AudioService.addQueueItem(episode.toMediaItem());
}
} else {
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await AudioService.addQueueItem(playlist.episodes[index].toMediaItem());
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}
//Check auto sleep timer setting
await _getAutoSleepTimer();
if (_autoSleepTimer) {
var startTime =
await _autoSleepTimerStartStorage.getInt(defaultValue: 1380);
var endTime = await _autoSleepTimerEndStorage.getInt(defaultValue: 360);
var currentTime = DateTime.now().hour * 60 + DateTime.now().minute;
if ((startTime > endTime &&
(currentTime > startTime || currentTime < endTime)) ||
((startTime < endTime) &&
(currentTime > startTime && currentTime < endTime))) {
var mode = await _autoSleepTimerModeStorage.getInt();
_sleepTimerMode = SleepTimerMode.values[mode];
var defaultTimer =
await _defaultSleepTimerStorage.getInt(defaultValue: 30);
sleepTimer(defaultTimer);
}
}
/// Set player speed.
if (_currentSpeed != 1.0) {
await AudioService.customAction('setSpeed', _currentSpeed);
}
/// Set slipsilence.
if (_skipSilence) {
await AudioService.customAction('setSkipSilence', skipSilence);
}
/// Set boostValome.
if (_boostVolume) {
await AudioService.customAction(
'setBoostVolume', [_boostVolume, _volumeGain]);
}
await AudioService.play();
AudioService.currentMediaItemStream
.where((event) => event != null)
.listen((item) async {
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var episode = await _dbHelper.getRssItemWithMediaId(item.id);
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_backgroundAudioDuration = item.duration?.inMilliseconds ?? 0;
if (episode != null) {
_episode = episode;
_backgroundAudioDuration = item.duration.inMilliseconds ?? 0;
if (position > 0 &&
_backgroundAudioDuration > 0 &&
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_episode.enclosureUrl == _playlist.episodeList[index]) {
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await AudioService.seekTo(Duration(milliseconds: position));
position = 0;
}
notifyListeners();
} else {
// _queue.playlist.removeAt(0);
AudioService.skipToNext();
}
});
AudioService.playbackStateStream
.distinct()
.where((event) => event != null)
.listen((event) async {
_current = DateTime.now();
_audioState = event.processingState;
_playing = event?.playing;
_currentSpeed = event.speed;
_currentPosition = event.currentPosition.inMilliseconds ?? 0;
if (_audioState == AudioProcessingState.stopped) {
if (_switchValue > 0) _switchValue = 0;
}
/// Get error state.
if (_audioState == AudioProcessingState.error) {
_remoteErrorMessage = 'Network Error';
}
/// Reset error state.
if (_audioState != AudioProcessingState.error) {
_remoteErrorMessage = null;
}
notifyListeners();
});
AudioService.customEventStream.distinct().listen((event) async {
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if (event is String) {
if (_playlist.name == 'Queue' &&
_queue.episodes.isNotEmpty &&
_queue.episodes.first.title == event) {
_queue.delFromPlaylist(_episode);
}
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_lastPostion = 0;
notifyListeners();
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// await _positionStorage.saveInt(_lastPostion);
await _playerStateStorage.savePlayerState(
_playlist.id, _episode.enclosureUrl, _lastPostion);
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var history;
if (_markListened) {
history = PlayHistory(_episode.title, _episode.enclosureUrl,
_backgroundAudioPosition ~/ 1000, 1);
} else {
history = PlayHistory(_episode.title, _episode.enclosureUrl,
_backgroundAudioPosition ~/ 1000, _seekSliderValue);
}
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await _dbHelper.saveHistory(history);
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}
if (event is Map && event['playerRunning'] == false && _playerRunning) {
_playerRunning = false;
notifyListeners();
if (_lastPostion > 0) {
final history = PlayHistory(_episode.title, _episode.enclosureUrl,
_lastPostion ~/ 1000, _seekSliderValue);
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await _dbHelper.saveHistory(history);
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}
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//_episode = null;
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}
});
//double s = _currentSpeed ?? 1.0;
var getPosition = 0;
Timer.periodic(Duration(milliseconds: 500), (timer) {
var s = _currentSpeed ?? 1.0;
if (_noSlide) {
if (_playing && !buffering) {
getPosition = _currentPosition +
((DateTime.now().difference(_current).inMilliseconds) * s)
.toInt();
_backgroundAudioPosition =
math.min(getPosition, _backgroundAudioDuration);
} else {
_backgroundAudioPosition = _currentPosition ?? 0;
}
if (_backgroundAudioDuration != null &&
_backgroundAudioDuration != 0 &&
_backgroundAudioPosition != null) {
_seekSliderValue =
_backgroundAudioPosition / _backgroundAudioDuration ?? 0;
} else {
_seekSliderValue = 0;
}
if (_backgroundAudioPosition > 0 &&
_backgroundAudioPosition < _backgroundAudioDuration) {
_lastPostion = _backgroundAudioPosition;
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// _positionStorage.saveInt(_lastPostion);
_playerStateStorage.savePlayerState(
_playlist.id, _episode.enclosureUrl, _lastPostion);
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}
notifyListeners();
}
if (_audioState == AudioProcessingState.stopped) {
timer.cancel();
}
});
}
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/// Playlists management.
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Future<void> addToPlaylist(EpisodeBrief episode) async {
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var episodeNew = await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
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if (episodeNew.isNew == 1) {
await _dbHelper.removeEpisodeNewMark(episodeNew.enclosureUrl);
}
if (!_queue.episodes.contains(episodeNew)) {
if (playerRunning && _playlist.name == 'Queue') {
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await AudioService.addQueueItem(episodeNew.toMediaItem());
}
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_queue.addToPlayList(episodeNew);
await updatePlaylist(_queue, updateEpisodes: false);
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}
}
Future<void> addToPlaylistAt(EpisodeBrief episode, int index) async {
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var episodeNew = await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
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if (episodeNew.isNew == 1) {
await _dbHelper.removeEpisodeNewMark(episodeNew.enclosureUrl);
}
if (playerRunning && _playlist.name == 'Queue') {
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await AudioService.addQueueItemAt(episodeNew.toMediaItem(), index);
}
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_queue.addToPlayListAt(episodeNew, index);
await updatePlaylist(_queue, updateEpisodes: false);
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}
Future<void> addNewEpisode(List<String> group) async {
var newEpisodes = <EpisodeBrief>[];
if (group.isEmpty) {
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newEpisodes = await _dbHelper.getRecentNewRssItem();
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} else {
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newEpisodes = await _dbHelper.getGroupNewRssItem(group);
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}
if (newEpisodes.length > 0 && newEpisodes.length < 100) {
for (var episode in newEpisodes) {
await addToPlaylist(episode);
}
}
if (group.isEmpty) {
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await _dbHelper.removeAllNewMark();
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} else {
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await _dbHelper.removeGroupNewMark(group);
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}
}
Future<void> updateMediaItem(EpisodeBrief episode) async {
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if (episode.enclosureUrl == episode.mediaId && _episode != episode) {
var episodeNew = await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
_playlist.updateEpisode(episodeNew);
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}
}
Future<int> delFromPlaylist(EpisodeBrief episode) async {
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var episodeNew = await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
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if (playerRunning && _playlist.name == 'Queue') {
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await AudioService.removeQueueItem(episodeNew.toMediaItem());
}
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var index = _queue.delFromPlaylist(episodeNew);
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if (index == 0) {
_lastPostion = 0;
await _positionStorage.saveInt(0);
}
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updatePlaylist(_queue, updateEpisodes: false);
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return index;
}
Future reorderPlaylist(int oldIndex, int newIndex) async {
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var episode = _queue.episodes[oldIndex];
if (playerRunning && _playlist.name == 'Queue') {
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await AudioService.removeQueueItem(episode.toMediaItem());
await AudioService.addQueueItemAt(episode.toMediaItem(), newIndex);
}
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_queue.addToPlayListAt(episode, newIndex);
updatePlaylist(_queue, updateEpisodes: false);
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if (newIndex == 0) {
_lastPostion = 0;
await _positionStorage.saveInt(0);
}
}
Future<bool> moveToTop(EpisodeBrief episode) async {
await delFromPlaylist(episode);
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if (playerRunning && _playlist.name == 'Queue') {
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final episodeNew =
await _dbHelper.getRssItemWithUrl(episode.enclosureUrl);
await AudioService.addQueueItemAt(episodeNew.toMediaItem(), 1);
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_queue.addToPlayListAt(episode, 1, existed: false);
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} else {
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_queue.addToPlayListAt(episode, 0, existed: false);
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_lastPostion = 0;
_positionStorage.saveInt(_lastPostion);
}
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updatePlaylist(_queue, updateEpisodes: false);
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return true;
}
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void addPlaylist(Playlist playlist) {
_playlists = [..._playlists, playlist];
notifyListeners();
_savePlaylists();
}
void deletePlaylist(Playlist playlist) {
_playlists = [
for (var p in _playlists)
if (p != playlist) p
];
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if (_playlist == playlist && !_playerRunning) {
_playlist = _queue;
_episode = _queue.episodes.first;
}
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notifyListeners();
_savePlaylists();
}
void addEpisodesToPlaylist(Playlist playlist, {List<EpisodeBrief> episodes}) {
for (var e in episodes) {
playlist.addToPlayList(e);
if (playerRunning && playlist == _playlist) {
AudioService.addQueueItem(e.toMediaItem());
}
}
updatePlaylist(playlist, updateEpisodes: false);
}
void removeEpisodeFromPlaylist(Playlist playlist,
{List<EpisodeBrief> episodes}) {
for (var e in episodes) {
playlist.delFromPlaylist(e);
if (playerRunning && playlist == _playlist) {
AudioService.removeQueueItem(e.toMediaItem());
}
}
updatePlaylist(playlist, updateEpisodes: false);
}
void reorderEpisodesInPlaylist(Playlist playlist,
{int oldIndex, int newIndex}) async {
playlist.reorderPlaylist(oldIndex, newIndex);
if (playerRunning && playlist == _playlist) {
if (newIndex > oldIndex) {
newIndex -= 1;
}
await AudioService.removeQueueItem(episode.toMediaItem());
await AudioService.addQueueItemAt(episode.toMediaItem(), newIndex);
}
updatePlaylist(playlist, updateEpisodes: false);
}
void clearPlaylist(Playlist playlist) {
playlist.clear();
updatePlaylist(playlist, updateEpisodes: false);
}
Future<void> updatePlaylist(Playlist playlist,
{bool updateEpisodes = true}) async {
if (updateEpisodes) await playlist.getPlaylist();
_playlists = [for (var p in _playlists) p.id == playlist.id ? playlist : p];
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if (_playlist.id == playlist.id && !_playerRunning) {
_playlist = _playlists.firstWhere((e) => e.id == _playlist.id);
notifyListeners();
}
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_savePlaylists();
}
bool playlistExisted(String name) {
for (var p in _playlists) {
if (p.name == name) return true;
}
return false;
}
void _updateAllPlaylists() {
_playlists = [..._playlists];
notifyListeners();
_savePlaylists();
}
Future<void> _savePlaylists() async {
await _playlistsStorgae
.savePlaylists([for (var p in _playlists) p.toEntity()]);
}
/// Audio control.
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Future<void> pauseAduio() async {
await AudioService.pause();
}
Future<void> resumeAudio() async {
_remoteErrorMessage = null;
notifyListeners();
if (_audioState != AudioProcessingState.connecting &&
_audioState != AudioProcessingState.none) {
AudioService.play();
}
}
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Future<void> playNext() async {
_remoteErrorMessage = null;
await AudioService.skipToNext();
notifyListeners();
}
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Future<void> forwardAudio(int s) async {
var pos = _backgroundAudioPosition + s * 1000;
await AudioService.seekTo(Duration(milliseconds: pos));
}
Future<void> fastForward() async {
await AudioService.fastForward();
}
Future<void> rewind() async {
await AudioService.rewind();
}
Future<void> seekTo(int position) async {
if (_audioState != AudioProcessingState.connecting &&
_audioState != AudioProcessingState.none) {
await AudioService.seekTo(Duration(milliseconds: position));
}
}
Future<void> sliderSeek(double val) async {
if (_audioState != AudioProcessingState.connecting &&
_audioState != AudioProcessingState.none) {
_noSlide = false;
_seekSliderValue = val;
notifyListeners();
_currentPosition = (val * _backgroundAudioDuration).toInt();
await AudioService.seekTo(Duration(milliseconds: _currentPosition));
_noSlide = true;
}
}
/// Set player speed.
Future<void> setSpeed(double speed) async {
await AudioService.customAction('setSpeed', speed);
_currentSpeed = speed;
await _speedStorage.saveDouble(_currentSpeed);
notifyListeners();
}
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/// Set skip silence.
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Future<void> setSkipSilence({@required bool skipSilence}) async {
await AudioService.customAction('setSkipSilence', skipSilence);
_skipSilence = skipSilence;
await _skipSilenceStorage.saveBool(_skipSilence);
notifyListeners();
}
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set setVolumeGain(int volumeGain) {
_volumeGain = volumeGain;
if (_playerRunning && _boostVolume) {
setBoostVolume(boostVolume: _boostVolume, gain: _volumeGain);
}
notifyListeners();
_volumeGainStorage.saveInt(volumeGain);
}
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Future<void> setBoostVolume({@required bool boostVolume, int gain}) async {
await AudioService.customAction(
'setBoostVolume', [boostVolume, _volumeGain]);
_boostVolume = boostVolume;
notifyListeners();
await _boostVolumeStorage.saveBool(boostVolume);
}
//Set sleep timer
void sleepTimer(int mins) {
if (_sleepTimerMode == SleepTimerMode.timer) {
_startSleepTimer = true;
_switchValue = 1;
notifyListeners();
_timeLeft = mins * 60;
Timer.periodic(Duration(seconds: 1), (timer) {
if (_timeLeft == 0) {
timer.cancel();
notifyListeners();
} else {
_timeLeft = _timeLeft - 1;
notifyListeners();
}
});
_stopTimer = Timer(Duration(minutes: mins), () {
_stopOnComplete = false;
_startSleepTimer = false;
_switchValue = 0;
if (_playerRunning) {
AudioService.stop();
}
notifyListeners();
// AudioService.disconnect();
});
} else if (_sleepTimerMode == SleepTimerMode.endOfEpisode) {
_stopOnComplete = true;
_switchValue = 1;
notifyListeners();
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if (_queue.episodes.length > 1 && _autoPlay) {
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AudioService.customAction('stopAtEnd');
}
}
}
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set setSleepTimerMode(SleepTimerMode timer) {
_sleepTimerMode = timer;
notifyListeners();
}
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//Cancel sleep timer
void cancelTimer() {
if (_sleepTimerMode == SleepTimerMode.timer) {
_stopTimer.cancel();
_timeLeft = 0;
_startSleepTimer = false;
_switchValue = 0;
notifyListeners();
} else if (_sleepTimerMode == SleepTimerMode.endOfEpisode) {
AudioService.customAction('cancelStopAtEnd');
_switchValue = 0;
_stopOnComplete = false;
notifyListeners();
}
}
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/// Save player state.
Future<void> _savePlayerPosiont() {}
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}
class AudioPlayerTask extends BackgroundAudioTask {
final cacheStorage = KeyValueStorage(cacheMaxKey);
final layoutStorage = KeyValueStorage(notificationLayoutKey);
final List<MediaItem> _queue = [];
final AudioPlayer _audioPlayer = AudioPlayer();
AudioSession _session;
AudioProcessingState _skipState;
bool _playing;
bool _interrupted = false;
bool _stopAtEnd;
int _cacheMax;
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int _index = 0;
bool _isQueue;
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bool get hasNext => _queue.length > 0;
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MediaItem get mediaItem => _queue.length > 0 ? _queue[_index] : null;
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StreamSubscription<AudioPlaybackState> _playerStateSubscription;
StreamSubscription<AudioPlaybackEvent> _eventSubscription;
@override
Future<void> onStart(Map<String, dynamic> params) async {
_stopAtEnd = false;
_session = await AudioSession.instance;
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_index = params['index'] ?? 0;
_isQueue = params['isQueue'] ?? true;
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await _session.configure(AudioSessionConfiguration.speech());
_handleInterruption(_session);
_playerStateSubscription = _audioPlayer.playbackStateStream
.where((state) => state == AudioPlaybackState.completed)
.listen((state) {
_handlePlaybackCompleted();
});
_eventSubscription = _audioPlayer.playbackEventStream.listen((event) {
if (event.playbackError != null) {
_playing = false;
_setState(processingState: _skipState ?? AudioProcessingState.error);
}
final bufferingState =
event.buffering ? AudioProcessingState.buffering : null;
switch (event.state) {
case AudioPlaybackState.paused:
_setState(
processingState: bufferingState ?? AudioProcessingState.ready,
position: event.position,
);
break;
case AudioPlaybackState.playing:
_setState(
processingState: bufferingState ?? AudioProcessingState.ready,
position: event.position,
);
break;
case AudioPlaybackState.connecting:
_setState(
processingState: _skipState ?? AudioProcessingState.connecting,
position: event.position,
);
break;
default:
break;
}
});
}
void _handlePlaybackCompleted() async {
if (hasNext) {
onSkipToNext();
} else {
_audioPlayer.stop();
_queue.removeAt(0);
await AudioServiceBackground.setQueue(_queue);
onStop();
}
}
void _handleInterruption(AudioSession session) async {
session.interruptionEventStream.listen((event) {
if (event.begin) {
switch (event.type) {
case AudioInterruptionType.pause:
if (_playing) {
onPause();
_interrupted = true;
}
break;
case AudioInterruptionType.duck:
if (_playing) {
onPause();
_interrupted = true;
}
break;
case AudioInterruptionType.unknown:
if (_playing) {
onPause();
_interrupted = true;
}
break;
}
} else {
switch (event.type) {
case AudioInterruptionType.pause:
if (!_playing && _interrupted) {
onPlay();
}
break;
case AudioInterruptionType.duck:
if (!_playing && _interrupted) {
onPlay();
}
break;
case AudioInterruptionType.unknown:
break;
}
_interrupted = false;
}
});
session.becomingNoisyEventStream.listen((_) {
if (_playing) onPause();
});
}
void playPause() {
if (AudioServiceBackground.state.playing) {
onPause();
} else {
onPlay();
}
}
@override
Future<void> onSkipToNext() async {
_skipState = AudioProcessingState.skippingToNext;
_playing = false;
await _audioPlayer.stop();
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AudioServiceBackground.sendCustomEvent(mediaItem.title);
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if (_isQueue) {
if (_queue.length > 0) {
_queue.removeAt(0);
}
await AudioServiceBackground.setQueue(_queue);
} else {
_index += 1;
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}
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if (_queue.length == 0 || _stopAtEnd) {
_skipState = null;
await Future.delayed(Duration(milliseconds: 200));
await onStop();
} else {
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// await AudioServiceBackground.setQueue(_queue);
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await AudioServiceBackground.setMediaItem(mediaItem);
await _audioPlayer.setUrl(mediaItem.id, cacheMax: _cacheMax);
var duration = await _audioPlayer.durationFuture;
if (duration != null) {
await AudioServiceBackground.setMediaItem(
mediaItem.copyWith(duration: duration));
}
_skipState = null;
_playFromStart();
}
}
@override
Future<void> onPlay() async {
if (_skipState == null) {
if (_playing == null) {
_playing = true;
_cacheMax = await cacheStorage.getInt(
defaultValue: (200 * 1024 * 1024).toInt());
if (_cacheMax == 0) {
await cacheStorage.saveInt((200 * 1024 * 1024).toInt());
_cacheMax = 200 * 1024 * 1024;
}
await _audioPlayer.setUrl(mediaItem.id, cacheMax: _cacheMax);
var duration = await _audioPlayer.durationFuture;
if (duration != null) {
await AudioServiceBackground.setMediaItem(
mediaItem.copyWith(duration: duration));
}
_playFromStart();
} else {
_playing = true;
_session.setActive(true);
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
await _audioPlayer.play();
await _seekRelative(Duration(seconds: -3));
}
}
}
}
Future<void> _playFromStart() async {
_playing = true;
_session.setActive(true);
if (mediaItem.extras['skipSecondsStart'] > 0 ||
mediaItem.extras['skipSecondsEnd'] > 0) {
_audioPlayer
.seek(Duration(seconds: mediaItem.extras['skipSecondsStart']));
}
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
try {
_audioPlayer.play();
} catch (e) {
_setState(processingState: AudioProcessingState.error);
}
}
}
@override
Future<void> onPause() async {
if (_skipState == null) {
if (_playing == null) {
} else if (_playing) {
_playing = false;
_audioPlayer.pause();
}
}
}
@override
Future<void> onSeekTo(Duration position) async {
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
await _audioPlayer.seek(position);
}
}
@override
Future<void> onClick(MediaButton button) async {
switch (button) {
case MediaButton.media:
if (AudioServiceBackground.state?.playing == true) {
await onPause();
} else {
await onPlay();
}
break;
case MediaButton.next:
await onFastForward();
break;
case MediaButton.previous:
await onRewind();
break;
}
}
Future<void> _seekRelative(Duration offset) async {
var newPosition = _audioPlayer.playbackEvent.position + offset;
if (newPosition < Duration.zero) newPosition = Duration.zero;
onSeekTo(newPosition);
}
@override
Future<void> onStop() async {
await _audioPlayer.stop();
await _audioPlayer.dispose();
_playing = false;
_playerStateSubscription.cancel();
_eventSubscription.cancel();
await _setState(processingState: AudioProcessingState.none);
AudioServiceBackground.sendCustomEvent({'playerRunning': false});
await super.onStop();
}
@override
Future<void> onTaskRemoved() async {
await onStop();
}
@override
Future<void> onAddQueueItem(MediaItem mediaItem) async {
_queue.add(mediaItem);
await AudioServiceBackground.setQueue(_queue);
}
@override
Future<void> onRemoveQueueItem(MediaItem mediaItem) async {
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var index = _queue.indexOf(mediaItem);
if (index < _index) _index -= 1;
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_queue.removeWhere((item) => item.id == mediaItem.id);
await AudioServiceBackground.setQueue(_queue);
}
@override
Future<void> onAddQueueItemAt(MediaItem mediaItem, int index) async {
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if (index == 0 && _isQueue) {
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await _audioPlayer.stop();
_queue.removeAt(0);
_queue.removeWhere((item) => item.id == mediaItem.id);
_queue.insert(0, mediaItem);
await AudioServiceBackground.setQueue(_queue);
await AudioServiceBackground.setMediaItem(mediaItem);
await _audioPlayer.setUrl(mediaItem.id, cacheMax: _cacheMax);
var duration = await _audioPlayer.durationFuture ?? Duration.zero;
AudioServiceBackground.setMediaItem(
mediaItem.copyWith(duration: duration));
_playFromStart();
//onPlay();
} else {
_queue.insert(index, mediaItem);
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if (index < _index) _index += 1;
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await AudioServiceBackground.setQueue(_queue);
}
}
@override
Future<void> onFastForward() async {
await _seekRelative(fastForwardInterval);
}
@override
Future<void> onRewind() async {
await _seekRelative(-rewindInterval);
}
@override
Future onCustomAction(funtion, argument) async {
switch (funtion) {
case 'stopAtEnd':
_stopAtEnd = true;
break;
case 'cancelStopAtEnd':
_stopAtEnd = false;
break;
case 'setSpeed':
await _audioPlayer.setSpeed(argument);
break;
case 'setSkipSilence':
await _setSkipSilence(argument);
break;
case 'setBoostVolume':
await _setBoostVolume(argument[0], argument[1]);
break;
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case 'setIsQueue':
_isQueue = argument;
break;
case 'changeQueue':
await _changeQueue(argument);
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break;
case 'changeIndex':
await _changeIndex(argument);
break;
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}
}
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Future _changeQueue(List<dynamic> items) async {
var queue = [for (var i in items) MediaItem.fromJson(json.decode(i))];
await _audioPlayer.stop();
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AudioServiceBackground.sendCustomEvent(mediaItem.title);
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_queue.clear();
_queue.addAll(queue);
_index = 0;
await AudioServiceBackground.setQueue(_queue);
await AudioServiceBackground.setMediaItem(mediaItem);
await _audioPlayer.setUrl(mediaItem.id, cacheMax: _cacheMax);
var duration = await _audioPlayer.durationFuture ?? Duration.zero;
AudioServiceBackground.setMediaItem(mediaItem.copyWith(duration: duration));
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_playFromStart();
}
Future _changeIndex(int index) async {
await _audioPlayer.stop();
AudioServiceBackground.sendCustomEvent(mediaItem.title);
_index = index;
await AudioServiceBackground.setMediaItem(mediaItem);
await _audioPlayer.setUrl(mediaItem.id, cacheMax: _cacheMax);
var duration = await _audioPlayer.durationFuture ?? Duration.zero;
AudioServiceBackground.setMediaItem(mediaItem.copyWith(duration: duration));
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_playFromStart();
}
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Future _setSkipSilence(bool boo) async {
await _audioPlayer.setSkipSilence(boo);
var duration = await _audioPlayer.durationFuture ?? Duration.zero;
AudioServiceBackground.setMediaItem(mediaItem.copyWith(duration: duration));
}
Future _setBoostVolume(bool boo, int gain) async {
await _audioPlayer.setBoostVolume(boo, gain: gain);
}
Future<void> _setState({
AudioProcessingState processingState,
Duration position,
Duration bufferedPosition,
}) async {
if (position == null) {
position = _audioPlayer.playbackEvent.position;
}
final index = await layoutStorage.getInt(defaultValue: 0);
await AudioServiceBackground.setState(
controls: _getControls(index),
systemActions: [
MediaAction.seekTo,
MediaAction.seekForward,
MediaAction.seekBackward,
],
processingState:
processingState ?? AudioServiceBackground.state.processingState,
playing: _playing ?? false,
position: position,
bufferedPosition: bufferedPosition ?? position,
speed: _audioPlayer.speed,
);
}
List<MediaControl> _getControls(int index) {
switch (index) {
case 0:
return [
_playing ? pauseControl : playControl,
forwardControl,
skipToNextControl,
stopControl
];
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break;
case 1:
return [
_playing ? pauseControl : playControl,
rewindControl,
skipToNextControl,
stopControl
];
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break;
case 2:
return [
rewindControl,
_playing ? pauseControl : playControl,
forwardControl,
stopControl
];
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break;
default:
return [
_playing ? pauseControl : playControl,
forwardControl,
skipToNextControl,
stopControl
];
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break;
}
}
}