IsolatedAudioHandler class

A CompositeAudioHandler that can be accessed from other isolates via lookup.

This handler recognises the custom action 'unregister' so that customAction('unregister') can be called from a client to unregister this handler, or it can be unregistered by a direct invocation of unregister.

Inheritance

• Object
• AudioHandler
• CompositeAudioHandler
• IsolatedAudioHandler

Constructors

IsolatedAudioHandler.new(AudioHandler inner, {String portName = defaultPortName, bool overridePortName = false})

Creates an IsolatedAudioHandler that can be looked up by portName (defaulting to defaultPortName).

Properties

androidPlaybackInfo → ValueStream<AndroidPlaybackInfo>

A value stream of the current AndroidPlaybackInfo.

no setter, inherited

customEvent → Stream

A stream of custom events.

no setter, inherited

customState → ValueStream

A stream of custom states.

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

mediaItem → ValueStream<MediaItem?>

A value stream of the current media item.

no setter, inherited

playbackState → ValueStream<PlaybackState>

A value stream of playback states.

no setter, inherited

portName → String

The port name to use when looking up this handler.

final

queue → ValueStream<List<MediaItem>>

A value stream of the current queue.

no setter, inherited

queueTitle → ValueStream<String>

A value stream of the current queueTitle.

no setter, inherited

ratingStyle → ValueStream<RatingStyle>

A value stream of the current rating style.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

addQueueItem(MediaItem mediaItem) → Future<void>

Add mediaItem to the queue.

inherited

addQueueItems(List<MediaItem> mediaItems) → Future<void>

Add mediaItems to the queue.

inherited

androidAdjustRemoteVolume(AndroidVolumeDirection direction) → Future<void>

Adjust the remote volume on Android. This works only when using RemoteAndroidPlaybackInfo.

inherited

androidSetRemoteVolume(int volumeIndex) → Future<void>

Set the remote volume on Android. This works only when using RemoteAndroidPlaybackInfo.

inherited

click([MediaButton button = MediaButton.media]) → Future<void>

Process a headset button click, where button defaults to MediaButton.media.

inherited

customAction(String name, [Map<String, dynamic>? extras]) → Future

A mechanism to support app-specific actions.

override

fastForward() → Future<void>

Jump forward by AudioServiceConfig.fastForwardInterval.

inherited

getChildren(String parentMediaId, [Map<String, dynamic>? options]) → Future<List<MediaItem>>

Get the children of a parent media item.

inherited

getMediaItem(String mediaId) → Future<MediaItem?>

Get a particular media item.

inherited

insertQueueItem(int index, MediaItem mediaItem) → Future<void>

Insert mediaItem into the queue at position index.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onNotificationDeleted() → Future<void>

Handle the notification being swiped away (Android).

inherited

onTaskRemoved() → Future<void>

Handle the task being swiped away in the task manager (Android).

inherited

pause() → Future<void>

Pause playback.

inherited

play() → Future<void>

Start or resume playback.

inherited

playFromMediaId(String mediaId, [Map<String, dynamic>? extras]) → Future<void>

Play a specific media item.

inherited

playFromSearch(String query, [Map<String, dynamic>? extras]) → Future<void>

Begin playback from a search query.

inherited

playFromUri(Uri uri, [Map<String, dynamic>? extras]) → Future<void>

Play a media item represented by a Uri.

inherited

playMediaItem(MediaItem mediaItem) → Future<void>

Play a specific media item.

inherited

prepare() → Future<void>

Prepare media items for playback.

inherited

prepareFromMediaId(String mediaId, [Map<String, dynamic>? extras]) → Future<void>

Prepare a specific media item for playback.

inherited

prepareFromSearch(String query, [Map<String, dynamic>? extras]) → Future<void>

Prepare playback from a search query.

inherited

prepareFromUri(Uri uri, [Map<String, dynamic>? extras]) → Future<void>

Prepare a media item represented by a Uri for playback.

inherited

removeQueueItem(MediaItem mediaItem) → Future<void>

Remove mediaItem from the queue.

inherited

removeQueueItemAt(int index) → Future<void>

Remove media item from the queue at the specified index.

inherited

rewind() → Future<void>

Jump backward by AudioServiceConfig.rewindInterval. Note: this value must be positive.

inherited

search(String query, [Map<String, dynamic>? extras]) → Future<List<MediaItem>>

Search for media items.

inherited

seek(Duration position) → Future<void>

Seek to position.

inherited

seekBackward(bool begin) → Future<void>

Begin or end seeking backward continuously.

inherited

seekForward(bool begin) → Future<void>

Begin or end seeking forward continuously.

inherited

setCaptioningEnabled(bool enabled) → Future<void>

Set whether captioning is enabled.

inherited

setRating(Rating rating, [Map<String, dynamic>? extras]) → Future<void>

Set the rating.

inherited

setRepeatMode(AudioServiceRepeatMode repeatMode) → Future<void>

Set the repeat mode.

inherited

setShuffleMode(AudioServiceShuffleMode shuffleMode) → Future<void>

Set the shuffle mode.

inherited

setSpeed(double speed) → Future<void>

Set the playback speed.

inherited

skipToNext() → Future<void>

Skip to the next item in the queue.

inherited

skipToPrevious() → Future<void>

Skip to the previous item in the queue.

inherited

skipToQueueItem(int index) → Future<void>

Skip to a queue item.

inherited

stop() → Future<void>

Stop playback and release resources.

inherited

subscribeToChildren(String parentMediaId) → ValueStream<Map<String, dynamic>>

Get a value stream that emits service-specific options to send to the client whenever the children under the specified parent change. The emitted options may contain information about what changed. A client that is subscribed to this stream should call getChildren to obtain the changed children.

inherited

toString() → String

A string representation of this object.

inherited

unregister() → void

Unregisters this handler so that it can no longer be looked up by portName.

updateMediaItem(MediaItem mediaItem) → Future<void>

Update the properties of mediaItem.

inherited

updateQueue(List<MediaItem> queue) → Future<void>

Update to the queue to queue.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

lookup({String portName = defaultPortName}) → Future<AudioHandler>

Connect to an IsolatedAudioHandler from another isolate having the name portName (defaulting to defaultPortName).

Constants

defaultPortName → const String

The default port name by which this isolated audio handler can be looked up.