Description:

assets audio player web

🎧 assets_audio_player 🔊 #







Play music/audio stored in assets files (simultaneously) directly from Flutter (android / ios / web / macos).
You can also use play audio files from network using their url, radios/livestream and local files
Notification can be displayed on Android & iOS, and bluetooth actions are handled
flutter:
assets:
- assets/audios/
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AssetsAudioPlayer.newPlayer().open(
Audio("assets/audios/song1.mp3"),
autoPlay: true,
showNotification: true,
);
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📥 Import #
dependencies:
assets_audio_player: ^2.0.13

or

assets_audio_player:
git:
url: https://github.com/florent37/Flutter-AssetsAudioPlayer.git
ref: master

ref can be latest commit id.
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Works with flutter: ">=1.12.13+hotfix.6 <2.0.0", be sure to upgrade your sdk
You like the package ? buy me a kofi :)




Audio Source
Android
iOS
Web
MacOS




🗄️ Asset file (asset path)
✅
✅
✅
✅


🌐 Network file (url)
✅
✅
✅
✅


📁 Local file (path)
✅
✅
✅
✅


📻 Network LiveStream / radio (url) (Default, HLS, Dash, SmoothStream)
✅
✅
✅
✅






Feature
Android
iOS
Web
MacOS




🎶 Multiple players
✅
✅
✅
✅


💽 Open Playlist
✅
✅
✅
✅


💬System notification
✅
✅
🚫
🚫


🎧 Bluetooth actions
✅
✅
🚫
🚫


🔕 Respect System silent mode
✅
✅
🚫
🚫


📞 Pause on phone call
✅
✅
🚫
🚫






Commands
Android
iOS
Web
MacOS




▶ Play
✅
✅
✅
✅


⏸ Pause
✅
✅
✅
✅


⏹ Stop
✅
✅
✅
✅


⏩ Seek(position)
✅
✅
✅
✅


⏪⏩ SeekBy(position)
✅
✅
✅
✅


⏩ Forward(speed)
✅
✅
✅
✅


⏪ Rewind(speed)
✅
✅
✅
✅


⏭ Next
✅
✅
✅
✅


⏮ Prev
✅
✅
✅
✅






Widgets
Android
iOS
Web
MacOS




🐦 Audio Widget
✅
✅
✅
✅


🐦 Widget Builders
✅
✅
✅
✅


🐦 AudioPlayer Builders Extension
✅
✅
✅
✅






Properties
Android
iOS
Web
MacOS




🔁 Loop
✅
✅
✅
✅


🔀 Shuffle
✅
✅
✅
✅


🔊 get/set Volume
✅
✅
✅
✅


⏩ get/set Play Speed
✅
✅
✅
✅






Listeners
Android
iOS
Web
MacOS




🦻 Listener onReady(completeDuration)
✅
✅
✅
✅


🦻 Listener currentPosition
✅
✅
✅
✅


🦻 Listener finished
✅
✅
✅
✅


🦻 Listener buffering
✅
✅
✅
✅


🦻 Listener volume
✅
✅
✅
✅


🦻Listener Play Speed
✅
✅
✅
✅



📁 Import assets files #
No needed to copy songs to a media cache, with assets_audio_player you can open them directly from the assets.

Create an audio directory in your assets (not necessary named "audios")
Declare it inside your pubspec.yaml

flutter:
assets:
- assets/audios/
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🛠️ Getting Started #
final assetsAudioPlayer = AssetsAudioPlayer();

assetsAudioPlayer.open(
Audio("assets/audios/song1.mp3"),
);
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You can also play network songs from url
final assetsAudioPlayer = AssetsAudioPlayer();

try {
await assetsAudioPlayer.open(
Audio.network("http://www.mysite.com/myMp3file.mp3"),
);
} catch (t) {
//mp3 unreachable
}
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LiveStream / Radio from url
The main difference with network, if you pause/play, on livestream it will resume to present duration
final assetsAudioPlayer = AssetsAudioPlayer();

try {
await assetsAudioPlayer.open(
Audio.liveStream(MY_LIVESTREAM_URL),
);
} catch (t) {
//stream unreachable
}
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And play songs from file
//create a new player
final assetsAudioPlayer = AssetsAudioPlayer();

assetsAudioPlayer.open(
Audio.file(FILE_URI),
);
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for file uri, please look at https://pub.dev/packages/path_provider
assetsAudioPlayer.playOrPause();
assetsAudioPlayer.play();
assetsAudioPlayer.pause();
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assetsAudioPlayer.seek(Duration to);
assetsAudioPlayer.seekBy(Duration by);
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assetsAudioPlayer.forwardRewind(double speed);
//if positive, forward, if negative, rewind
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assetsAudioPlayer.stop();
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Notifications #


on iOS, it will use MPNowPlayingInfoCenter

Add metas inside your audio

final audio = Audio("/assets/audio/country.mp3",
metas: Metas(
title: "Country",
artist: "Florent Champigny",
album: "CountryAlbum",
image: MetasImage.asset("assets/images/country.jpg"), //can be MetasImage.network
),
);
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open with showNotification: true

_player.open(audio, showNotification: true)
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Custom notification #
Custom icon (android only)
By ResourceName #
Make sur you added those icons inside your android/res/drawable !!! not on flutter assets !!!!
await _assetsAudioPlayer.open(
myAudio,
showNotification: true,
notificationSettings: NotificationSettings(
customStopIcon: AndroidResDrawable(name: "ic_stop_custom"),
customPauseIcon: AndroidResDrawable(name:"ic_pause_custom"),
customPlayIcon: AndroidResDrawable(name:"ic_play_custom"),
customPrevIcon: AndroidResDrawable(name:"ic_prev_custom"),
customNextIcon: AndroidResDrawable(name:"ic_next_custom"),
)

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And don't forget tell proguard to keep those resources for release mode
(part Keeping Resources)
https://sites.google.com/a/android.com/tools/tech-docs/new-build-system/resource-shrinking

<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:tools="http://schemas.android.com/tools"
tools:keep="@drawable/ic_next_custom, @drawable/ic_prev_custom, @drawable/ic_pause_custom, @drawable/ic_play_custom, @drawable/ic_stop_custom"/>
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By Manifest #


Add your icon into your android's res folder (android/app/src/main/res)


Reference this icon into your AndroidManifest (android/app/src/main/AndroidManifest.xml)


<meta-data
android:name="assets.audio.player.notification.icon"
android:resource="@drawable/ic_music_custom"/>
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You can also change actions icons
<meta-data
android:name="assets.audio.player.notification.icon.play"
android:resource="@drawable/ic_play_custom"/>
<meta-data
android:name="assets.audio.player.notification.icon.pause"
android:resource="@drawable/ic_pause_custom"/>
<meta-data
android:name="assets.audio.player.notification.icon.stop"
android:resource="@drawable/ic_stop_custom"/>
<meta-data
android:name="assets.audio.player.notification.icon.next"
android:resource="@drawable/ic_next_custom"/>
<meta-data
android:name="assets.audio.player.notification.icon.prev"
android:resource="@drawable/ic_prev_custom"/>
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Handle notification click (android) #
Add in main
AssetsAudioPlayer.setupNotificationsOpenAction((notification) {
//custom action
return true; //true : handled, does not notify others listeners
//false : enable others listeners to handle it
});
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Then if you want a custom action on widget
AssetsAudioPlayer.addNotificationOpenAction((notification) {
//custom action
return false; //true : handled, does not notify others listeners
//false : enable others listeners to handle it
});
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Custom actions #
You can enable/disable a notification action
open(AUDIO,
showNotification: true,
notificationSettings: NotificationSettings(
prevEnabled: false, //disable the previous button

//and have a custom next action (will disable the default action)
customNextAction: (player) {
print("next");
}
)

)
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Update audio's metas / notification content #
After your audio creation, just call
audio.updateMetas(
player: _assetsAudioPlayer, //add the player if the audio is actually played
title: "My new title",
artist: "My new artist",
//if I not provide a new album, it keep the old one
image: MetasImage.network(
//my new image url
),
);
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Bluetooth Actions #
You have to enable notification to make them work
Available remote commands :

Play / Pause
Next
Prev
Stop

HeadPhone Strategy #
(Only for Android for now)
while opening a song/playlist, add a strategy
assetsAudioPlayer.open(
...
headPhoneStrategy: HeadPhoneStrategy.pauseOnUnplug,
//headPhoneStrategy: HeadPhoneStrategy.none, //default
//headPhoneStrategy: HeadPhoneStrategy.pauseOnUnplugPlayOnPlug,
)
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If you want to make it work on bluetooth too, you'll have to add the BLUETOOTH permission inside your AndroidManifest.xml
<uses-permission android:name="android.permission.BLUETOOTH" />
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⛓ Play in parallel / simultaneously #
You can create new AssetsAudioPlayer using AssetsAudioPlayer.newPlayer(),
which will play songs in a different native Media Player
This will enable to play two songs simultaneously
You can have as many player as you want !
///play 3 songs in parallel
AssetsAudioPlayer.newPlayer().open(
Audio("assets/audios/song1.mp3")
);
AssetsAudioPlayer.newPlayer().open(
Audio("assets/audios/song2.mp3")
);

//another way, with create, open, play & dispose the player on finish
AssetsAudioPlayer.playAndForget(
Audio("assets/audios/song3.mp3")
);
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Each player has an unique generated id, you can retrieve or create them manually using
final player = AssetsAudioPlayer.withId(id: "MY_UNIQUE_ID");
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🗄️ Playlist #
assetsAudioPlayer.open(
Playlist(
audios: [
Audio("assets/audios/song1.mp3"),
Audio("assets/audios/song2.mp3")
]
),
loopMode: LoopMode.playlist //loop the full playlist
);

assetsAudioPlayer.next();
assetsAudioPlayer.prev();
assetsAudioPlayer.playlistPlayAtIndex(1);
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Audio Widget #
If you want a more flutter way to play audio, try the AudioWidget !

//inside a stateful widget

bool _play = false;

@override
Widget build(BuildContext context) {
return AudioWidget.assets(
path: "assets/audios/country.mp3",
play: _play,
child: RaisedButton(
child: Text(
_play ? "pause" : "play",
),
onPressed: () {
setState(() {
_play = !_play;
});
}
),
onReadyToPlay: (duration) {
//onReadyToPlay
},
onPositionChanged: (current, duration) {
//onPositionChanged
},
);
}
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How to 🛑 stop 🛑 the AudioWidget ?
Just remove the Audio from the tree !
Or simply keep play: false
🎧 Listeners #
All listeners exposes Streams
Using RxDart, AssetsAudioPlayer exposes some listeners as ValueObservable (Observable that provides synchronous access to the last emitted item);
🎵 Current song #
//The current playing audio, filled with the total song duration
assetsAudioPlayer.current //ValueObservable<PlayingAudio>

//Retrieve directly the current played asset
final PlayingAudio playing = assetsAudioPlayer.current.value;

//Listen to the current playing song
assetsAudioPlayer.current.listen((playingAudio){
final asset = playingAudio.assetAudio;
final songDuration = playingAudio.duration;
})
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⌛ Current song duration #
//Listen to the current playing song
final duration = assetsAudioPlayer.current.value.duration;
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⏳ Current position (in seconds) #
assetsAudioPlayer.currentPosition //ValueObservable<Duration>

//retrieve directly the current song position
final Duration position = assetsAudioPlayer.currentPosition.value;

return StreamBuilder(
stream: assetsAudioPlayer.currentPosition,
builder: (context, asyncSnapshot) {
final Duration duration = asyncSnapshot.data;
return Text(duration.toString());
}),
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or use a PlayerBuilder !
PlayerBuilder.currentPosition(
player: _assetsAudioPlayer,
builder: (context, duration) {
return Text(duration.toString());
}
)
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or Player Builder Extension
_assetsAudioPlayer.builderCurrentPosition(
builder: (context, duration) {
return Text(duration.toString());
}
)
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▶ IsPlaying #
boolean observable representing the current mediaplayer playing state
assetsAudioPlayer.isPlaying // ValueObservable<bool>

//retrieve directly the current player state
final bool playing = assetsAudioPlayer.isPlaying.value;

//will follow the AssetsAudioPlayer playing state
return StreamBuilder(
stream: assetsAudioPlayer.isPlaying,
builder: (context, asyncSnapshot) {
final bool isPlaying = asyncSnapshot.data;
return Text(isPlaying ? "Pause" : "Play");
}),
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or use a PlayerBuilder !
PlayerBuilder.isPlaying(
player: _assetsAudioPlayer,
builder: (context, isPlaying) {
return Text(isPlaying ? "Pause" : "Play");
}
)
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or Player Builder Extension
_assetsAudioPlayer.builderIsPlaying(
builder: (context, isPlaying) {
return Text(isPlaying ? "Pause" : "Play");
}
)
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🔊 Volume #
Change the volume (between 0.0 & 1.0)
assetsAudioPlayer.setVolume(0.5);
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The media player can follow the system "volume mode" (vibrate, muted, normal)
Simply set the respectSilentMode optional parameter as true
_player.open(PLAYABLE, respectSilentMode: true);
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https://developer.android.com/reference/android/media/AudioManager.html?hl=fr#getRingerMode()
https://developer.apple.com/documentation/avfoundation/avaudiosessioncategorysoloambient
Listen the volume
return StreamBuilder(
stream: assetsAudioPlayer.volume,
builder: (context, asyncSnapshot) {
final double volume = asyncSnapshot.data;
return Text("volume : $volume");
}),
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or use a PlayerBuilder !
PlayerBuilder.volume(
player: _assetsAudioPlayer,
builder: (context, volume) {
return Text("volume : $volume");
}
)
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✋ Finished #
Called when the current song has finished to play,
it gives the Playing audio that just finished
assetsAudioPlayer.playlistAudioFinished //ValueObservable<Playing>

assetsAudioPlayer.playlistAudioFinished.listen((Playing playing){

})
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Called when the complete playlist has finished to play
assetsAudioPlayer.playlistFinished //ValueObservable<bool>

assetsAudioPlayer.playlistFinished.listen((finished){

})
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🔁 Looping #
final LoopMode loopMode = assetsAudioPlayer.loop;
// possible values
// LoopMode.none : not looping
// LoopMode.single : looping a single audio
// LoopMode.playlist : looping the fyll playlist

assetsAudioPlayer.setLoopMode(LoopMode.single);

assetsAudioPlayer.loopMode.listen((loopMode){
//listen to loop
})

assetsAudioPlayer.toggleLoop(); //toggle the value of looping
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Error Handling #
By default, on playing error, it stop the audio
BUT you can add a custom behavior
_player.onErrorDo = (handler){
handler.player.stop();
};
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Open another audio
_player.onErrorDo = (handler){
handler.player.open(ANOTHER_AUDIO);
};
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Try to open again on same position
_player.onErrorDo = (handler){
handler.player.open(
handler.playlist.copyWith(
startIndex: handler.playlistIndex
),
seek: handler.currentPosition
);
};
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Network Policies (android/iOS/macOS) #
Android only allow HTTPS calls, you will have an error if you're using HTTP,
don't forget to add INTERNET permission and seet usesCleartextTraffic="true" in your AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest ...>
<uses-permission android:name="android.permission.INTERNET" />
<application
...
android:usesCleartextTraffic="true"
...>
...
</application>
</manifest>
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iOS only allow HTTPS calls, you will have an error if you're using HTTP,
don't forget to edit your info.plist and set NSAppTransportSecurity to NSAllowsArbitraryLoads
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
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To enable http calls on macOs, you have to add input/output calls capabilities into info.plist
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
<key>UIBackgroundModes</key>
<array>
<string>audio</string>
<string>fetch</string>
</array>
<key>com.apple.security.network.client</key>
<true/>
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and in your
Runner/DebugProfile.entitlements
add
<key>com.apple.security.network.client</key>
<true/>
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Complete Runner/DebugProfile.entitlements
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>com.apple.security.app-sandbox</key>
<true/>
<key>com.apple.security.cs.allow-jit</key>
<true/>
<key>com.apple.security.network.server</key>
<true/>
<key>com.apple.security.network.client</key>
<true/>
</dict>
</plist>
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🎶 Musics #
All musics used in the samples came from https://www.freemusicarchive.org/