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

1060 lines
32 KiB
Dart

import 'dart:async';
import 'dart:math' as math;
import 'package:audio_service/audio_service.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(
androidIcon: 'drawable/baseline_skip_next_white_24',
label: 'Next',
action: MediaAction.skipToNext,
);
MediaControl skipToPreviousControl = MediaControl(
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 forward = MediaControl(
androidIcon: 'drawable/baseline_fast_forward_white_24',
label: 'forward',
action: MediaAction.fastForward,
);
void _audioPlayerTaskEntrypoint() async {
AudioServiceBackground.run(() => AudioPlayerTask());
}
/// Sleep timer mode.
enum SleepTimerMode { endOfEpisode, timer, undefined }
enum PlayerHeight { short, mid, tall }
//enum ShareStatus { generate, download, complete, undefined, error }
class AudioPlayerNotifier extends ChangeNotifier {
DBHelper dbHelper = DBHelper();
var positionStorage = KeyValueStorage(audioPositionKey);
var autoPlayStorage = KeyValueStorage(autoPlayKey);
var autoSleepTimerStorage = KeyValueStorage(autoSleepTimerKey);
var defaultSleepTimerStorage = KeyValueStorage(defaultSleepTimerKey);
var autoSleepTimerModeStorage = KeyValueStorage(autoSleepTimerModeKey);
var autoSleepTimerStartStorage = KeyValueStorage(autoSleepTimerStartKey);
var autoSleepTimerEndStorage = KeyValueStorage(autoSleepTimerEndKey);
var fastForwardSecondsStorage = KeyValueStorage(fastForwardSecondsKey);
var rewindSecondsStorage = KeyValueStorage(rewindSecondsKey);
var playerHeightStorage = KeyValueStorage(playerHeightKey);
var speedStorage = KeyValueStorage(speedKey);
var skipSilenceStorage = KeyValueStorage(skipSilenceKey);
var boostVolumeStorage = KeyValueStorage(boostVolumeKey);
var volumeGainStorage = KeyValueStorage(volumeGainKey);
/// Current playing episdoe.
EpisodeBrief _episode;
/// Current playlist.
Playlist _queue;
/// Notifier for playlist change.
bool _queueUpdate = false;
/// 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;
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;
int get lastPositin => _lastPostion;
Playlist get queue => _queue;
bool get playing => _playing;
bool get queueUpdate => _queueUpdate;
EpisodeBrief get episode => _episode;
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();
}
set setVolumeGain(int volumeGain) {
_volumeGain = volumeGain;
if (_playerRunning && _boostVolume) {
setBoostVolume(boostVolume: _boostVolume, gain: _volumeGain);
}
notifyListeners();
volumeGainStorage.saveInt(volumeGain);
}
Future _initAudioData() async {
var index = await playerHeightStorage.getInt(defaultValue: 0);
_playerHeight = PlayerHeight.values[index];
_currentSpeed = await speedStorage.getDoubel(defaultValue: 1.0);
_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;
}
set setSleepTimerMode(SleepTimerMode timer) {
_sleepTimerMode = timer;
notifyListeners();
}
@override
void addListener(VoidCallback listener) {
super.addListener(listener);
_initAudioData();
// _queueUpdate = false;
// _getAutoSleepTimer();
AudioService.connect();
var running = AudioService.running;
if (running) {}
}
Future<void> loadPlaylist() async {
_queue = Playlist();
await _queue.getPlaylist();
await _getAutoPlay();
_lastPostion = await positionStorage.getInt();
if (_lastPostion > 0 && _queue.playlist.length > 0) {
final episode = _queue.playlist.first;
final duration = episode.duration * 1000;
final seekValue = duration != 0 ? _lastPostion / duration : 1;
final history = PlayHistory(
episode.title, episode.enclosureUrl, _lastPostion ~/ 1000, seekValue);
await dbHelper.saveHistory(history);
}
var lastWorkStorage = KeyValueStorage(lastWorkKey);
await lastWorkStorage.saveInt(0);
}
playlistLoad() async {
await _queue.getPlaylist();
_backgroundAudioDuration = 0;
_backgroundAudioPosition = 0;
_seekSliderValue = 0;
_episode = _queue.playlist.first;
_queueUpdate = !_queueUpdate;
_audioState = AudioProcessingState.none;
_playerRunning = true;
notifyListeners();
_startAudioService(_lastPostion ?? 0, _queue.playlist.first.enclosureUrl);
}
Future<void> episodeLoad(EpisodeBrief episode,
{int startPosition = 0}) async {
final episodeNew = await dbHelper.getRssItemWithUrl(episode.enclosureUrl);
//TODO load episode from last position when player running
if (playerRunning) {
final history = PlayHistory(_episode.title, _episode.enclosureUrl,
backgroundAudioPosition ~/ 1000, seekSliderValue);
await dbHelper.saveHistory(history);
AudioService.addQueueItemAt(episodeNew.toMediaItem(), 0);
_queue.playlist.removeAt(0);
_queue.playlist.removeWhere((item) => item == episode);
_queue.playlist.insert(0, episodeNew);
_queueUpdate != _queueUpdate;
_remoteErrorMessage = null;
notifyListeners();
await _queue.savePlaylist();
if (episodeNew.isNew == 1) {
await dbHelper.removeEpisodeNewMark(episodeNew.enclosureUrl);
}
} else {
await _queue.getPlaylist();
await _queue.addToPlayListAt(episodeNew, 0);
_backgroundAudioDuration = 0;
_backgroundAudioPosition = 0;
_seekSliderValue = 0;
_episode = episodeNew;
_playerRunning = true;
notifyListeners();
_startAudioService(startPosition, episodeNew.enclosureUrl);
}
}
_startAudioService(int position, String url) async {
_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);
/// Start audio service.
await AudioService.start(
backgroundTaskEntrypoint: _audioPlayerTaskEntrypoint,
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) {
for (var episode in _queue.playlist) {
await AudioService.addQueueItem(episode.toMediaItem());
}
} else {
await AudioService.addQueueItem(_queue.playlist.first.toMediaItem());
}
//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 {
var episode = await dbHelper.getRssItemWithMediaId(item.id);
_backgroundAudioDuration = item.duration?.inMilliseconds ?? 0;
if (episode != null) {
_episode = episode;
_backgroundAudioDuration = item.duration.inMilliseconds ?? 0;
if (position > 0 &&
_backgroundAudioDuration > 0 &&
_episode.enclosureUrl == url) {
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 {
if (event is String && _episode.title == event) {
_queue.delFromPlaylist(_episode);
_lastPostion = 0;
notifyListeners();
await positionStorage.saveInt(_lastPostion);
final history = PlayHistory(_episode.title, _episode.enclosureUrl,
backgroundAudioPosition ~/ 1000, seekSliderValue);
await dbHelper.saveHistory(history);
}
if (event is Map && event['playerRunning'] == false) {
_playerRunning = false;
notifyListeners();
final history = PlayHistory(_episode.title, _episode.enclosureUrl,
_lastPostion ~/ 1000, _seekSliderValue);
await dbHelper.saveHistory(history);
}
});
//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;
positionStorage.saveInt(_lastPostion);
}
notifyListeners();
}
if (_audioState == AudioProcessingState.stopped) {
timer.cancel();
}
});
}
playNext() async {
_remoteErrorMessage = null;
await AudioService.skipToNext();
_queueUpdate = !_queueUpdate;
notifyListeners();
}
addToPlaylist(EpisodeBrief episode) async {
var episodeNew = await dbHelper.getRssItemWithUrl(episode.enclosureUrl);
if (!_queue.playlist.contains(episodeNew)) {
if (playerRunning) {
await AudioService.addQueueItem(episodeNew.toMediaItem());
}
await _queue.addToPlayList(episodeNew);
_queueUpdate = !_queueUpdate;
notifyListeners();
}
}
addToPlaylistAt(EpisodeBrief episode, int index) async {
var episodeNew = await dbHelper.getRssItemWithUrl(episode.enclosureUrl);
if (playerRunning) {
await AudioService.addQueueItemAt(episodeNew.toMediaItem(), index);
}
await _queue.addToPlayListAt(episodeNew, index);
_queueUpdate = !_queueUpdate;
notifyListeners();
}
addNewEpisode(List<String> group) async {
var newEpisodes = <EpisodeBrief>[];
if (group.first == 'All') {
newEpisodes = await dbHelper.getRecentNewRssItem();
} else {
newEpisodes = await dbHelper.getGroupNewRssItem(group);
}
if (newEpisodes.length > 0 && newEpisodes.length < 100) {
for (var episode in newEpisodes) {
await addToPlaylist(episode);
}
}
if (group.first == 'All') {
await dbHelper.removeAllNewMark();
} else {
await dbHelper.removeGroupNewMark(group);
}
}
updateMediaItem(EpisodeBrief episode) async {
var index = _queue.playlist
.indexWhere((item) => item.enclosureUrl == episode.enclosureUrl);
if (index > 0) {
var episodeNew = await dbHelper.getRssItemWithUrl(episode.enclosureUrl);
await delFromPlaylist(episode);
await addToPlaylistAt(episodeNew, index);
}
}
Future<int> delFromPlaylist(EpisodeBrief episode) async {
var episodeNew = await dbHelper.getRssItemWithUrl(episode.enclosureUrl);
if (playerRunning) {
await AudioService.removeQueueItem(episodeNew.toMediaItem());
}
var index = await _queue.delFromPlaylist(episodeNew);
if (index == 0) {
_lastPostion = 0;
await positionStorage.saveInt(0);
}
_queueUpdate = !_queueUpdate;
notifyListeners();
return index;
}
Future reorderPlaylist(int oldIndex, int newIndex) async {
var episode = _queue.playlist[oldIndex];
if (playerRunning) {
await AudioService.removeQueueItem(episode.toMediaItem());
await AudioService.addQueueItemAt(episode.toMediaItem(), newIndex);
}
await _queue.addToPlayListAt(episode, newIndex);
if (newIndex == 0) {
_lastPostion = 0;
await positionStorage.saveInt(0);
}
}
Future<bool> moveToTop(EpisodeBrief episode) async {
await delFromPlaylist(episode);
if (playerRunning) {
await AudioService.addQueueItemAt(episode.toMediaItem(), 1);
await _queue.addToPlayListAt(episode, 1, existed: false);
} else {
await _queue.addToPlayListAt(episode, 0, existed: false);
_lastPostion = 0;
positionStorage.saveInt(_lastPostion);
}
_queueUpdate = !_queueUpdate;
notifyListeners();
return true;
}
Future<void> pauseAduio() async {
await AudioService.pause();
}
Future<void> resumeAudio() async {
_remoteErrorMessage = null;
notifyListeners();
if (_audioState != AudioProcessingState.connecting &&
_audioState != AudioProcessingState.none) AudioService.play();
}
forwardAudio(int s) {
var pos = _backgroundAudioPosition + s * 1000;
AudioService.seekTo(Duration(milliseconds: pos));
}
fastForward() async {
await AudioService.fastForward();
}
rewind() async {
await AudioService.rewind();
}
seekTo(int position) async {
if (_audioState != AudioProcessingState.connecting &&
_audioState != AudioProcessingState.none) {
await AudioService.seekTo(Duration(milliseconds: position));
}
}
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.
setSpeed(double speed) async {
await AudioService.customAction('setSpeed', speed);
_currentSpeed = speed;
await speedStorage.saveDouble(_currentSpeed);
notifyListeners();
}
setSkipSilence({@required bool skipSilence}) async {
await AudioService.customAction('setSkipSilence', skipSilence);
_skipSilence = skipSilence;
await skipSilenceStorage.saveBool(_skipSilence);
notifyListeners();
}
setBoostVolume({@required bool boostVolume, int gain}) async {
await AudioService.customAction(
'setBoostVolume', [boostVolume, _volumeGain]);
_boostVolume = boostVolume;
notifyListeners();
await boostVolumeStorage.saveBool(boostVolume);
}
//Set sleep timer
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;
AudioService.stop();
notifyListeners();
// AudioService.disconnect();
});
} else if (_sleepTimerMode == SleepTimerMode.endOfEpisode) {
_stopOnComplete = true;
_switchValue = 1;
notifyListeners();
if (_queue.playlist.length > 1 && _autoPlay) {
AudioService.customAction('stopAtEnd');
}
}
}
//Cancel sleep timer
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();
}
}
@override
void dispose() async {
// await AudioService.stop();
await AudioService.disconnect();
//_playerRunning = false;
super.dispose();
}
}
class AudioPlayerTask extends BackgroundAudioTask {
KeyValueStorage cacheStorage = KeyValueStorage(cacheMaxKey);
final List<MediaItem> _queue = [];
final AudioPlayer _audioPlayer = AudioPlayer();
AudioProcessingState _skipState;
bool _playing;
bool _interrupted = false;
bool _stopAtEnd;
int _cacheMax;
bool get hasNext => _queue.length > 0;
MediaItem get mediaItem => _queue.length > 0 ? _queue.first : null;
StreamSubscription<AudioPlaybackState> _playerStateSubscription;
StreamSubscription<AudioPlaybackEvent> _eventSubscription;
@override
Future<void> onStart(Map<String, dynamic> params) async {
_stopAtEnd = false;
_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 playPause() {
if (AudioServiceBackground.state.playing) {
onPause();
} else {
onPlay();
}
}
@override
Future<void> onSkipToNext() async {
_skipState = AudioProcessingState.skippingToNext;
_playing = false;
await _audioPlayer.stop();
if (_queue.length > 0) {
AudioServiceBackground.sendCustomEvent(_queue.first.title);
_queue.removeAt(0);
}
await AudioServiceBackground.setQueue(_queue);
if (_queue.length == 0 || _stopAtEnd) {
_skipState = null;
onStop();
} else {
await AudioServiceBackground.setQueue(_queue);
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;
// Resume playback if we were playing
// if (_playing) {
//onPlay();
playFromStart();
// } else {
// _setState(state: BasicPlaybackState.paused);
// }
}
}
@override
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;
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
_audioPlayer.play();
}
}
}
}
playFromStart() async {
_playing = true;
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
try {
_audioPlayer.play();
} catch (e) {
_setState(processingState: AudioProcessingState.error);
}
}
if (mediaItem.extras['skip'] > 0) {
_audioPlayer.seek(Duration(seconds: mediaItem.extras['skip']));
}
}
@override
void onPause() {
if (_skipState == null) {
if (_playing == null) {
} else if (_playing) {
_playing = false;
_audioPlayer.pause();
}
}
}
@override
void onSeekTo(Duration position) {
if (_audioPlayer.playbackEvent.state != AudioPlaybackState.connecting ||
_audioPlayer.playbackEvent.state != AudioPlaybackState.none) {
_audioPlayer.seek(position);
}
}
@override
void onClick(MediaButton button) {
if (button == MediaButton.media) {
playPause();
} else if (button == MediaButton.next) {
_seekRelative(fastForwardInterval);
} else if (button == MediaButton.previous) _seekRelative(-rewindInterval);
}
Future<void> _seekRelative(Duration offset) async {
var newPosition = _audioPlayer.playbackEvent.position + offset;
// if (newPosition < Duration.zero) newPosition = Duration.zero;
// if (newPosition > mediaItem.duration) newPosition = mediaItem.duration;
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
void onAddQueueItem(MediaItem mediaItem) async {
_queue.add(mediaItem);
await AudioServiceBackground.setQueue(_queue);
}
@override
void onRemoveQueueItem(MediaItem mediaItem) async {
_queue.removeWhere((item) => item.id == mediaItem.id);
await AudioServiceBackground.setQueue(_queue);
}
@override
void onAddQueueItemAt(MediaItem mediaItem, int index) async {
if (index == 0) {
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);
await AudioServiceBackground.setQueue(_queue);
}
}
@override
void onFastForward() async {
await _seekRelative(fastForwardInterval);
}
@override
void onRewind() async {
await _seekRelative(-rewindInterval);
}
@override
void onAudioFocusLost(AudioInterruption interruption) {
if (_playing) _interrupted = true;
switch (interruption) {
case AudioInterruption.pause:
case AudioInterruption.temporaryPause:
case AudioInterruption.unknownPause:
onPause();
break;
case AudioInterruption.temporaryDuck:
_audioPlayer.setVolume(0.5);
break;
}
}
@override
void onAudioBecomingNoisy() {
if (_skipState == null) {
if (_playing == null) {
} else if (_audioPlayer.playbackEvent.state ==
AudioPlaybackState.playing) {
_playing = false;
_audioPlayer.pause();
}
}
}
@override
void onAudioFocusGained(AudioInterruption interruption) {
switch (interruption) {
case AudioInterruption.temporaryPause:
if (!_playing && _interrupted) onPlay();
break;
case AudioInterruption.temporaryDuck:
_audioPlayer.setVolume(1.0);
break;
default:
break;
}
_interrupted = false;
}
@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;
}
}
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;
}
await AudioServiceBackground.setState(
controls: getControls(),
systemActions: [MediaAction.seekTo],
processingState:
processingState ?? AudioServiceBackground.state.processingState,
playing: _playing ?? false,
position: position,
bufferedPosition: bufferedPosition ?? position,
speed: _audioPlayer.speed,
);
}
List<MediaControl> getControls() {
if (_playing) {
return [pauseControl, forward, skipToNextControl, stopControl];
} else {
return [playControl, forward, skipToNextControl, stopControl];
}
}
}