Added in API level 21

Summary: Nested Classes | Constants | Inherited Constants | Fields | Methods | Inherited Methods

PlaybackState

---

Kotlin |Java

public final class PlaybackState
extends Object implements Parcelable

java.lang.Object
↳	android.media.session.PlaybackState

---

Playback state for a MediaSession. This includes a state like PlaybackState.STATE_PLAYING, the current playback position, and the current control capabilities.

Summary

Nested classes
class	PlaybackState.Builder Builder for PlaybackState objects.
class	PlaybackState.CustomAction CustomActions can be used to extend the capabilities of the standard transport controls by exposing app specific actions to MediaControllers.

Constants
long	ACTION_FAST_FORWARD Indicates this session supports the fast forward command.
long	ACTION_PAUSE Indicates this session supports the pause command.
long	ACTION_PLAY Indicates this session supports the play command.
long	ACTION_PLAY_FROM_MEDIA_ID Indicates this session supports the play from media id command.
long	ACTION_PLAY_FROM_SEARCH Indicates this session supports the play from search command.
long	ACTION_PLAY_FROM_URI Indicates this session supports the play from URI command.
long	ACTION_PLAY_PAUSE Indicates this session supports the play/pause toggle command.
long	ACTION_PREPARE Indicates this session supports the prepare command.
long	ACTION_PREPARE_FROM_MEDIA_ID Indicates this session supports the prepare from media id command.
long	ACTION_PREPARE_FROM_SEARCH Indicates this session supports the prepare from search command.
long	ACTION_PREPARE_FROM_URI Indicates this session supports the prepare from URI command.
long	ACTION_REWIND Indicates this session supports the rewind command.
long	ACTION_SEEK_TO Indicates this session supports the seek to command.
long	ACTION_SET_PLAYBACK_SPEED Indicates this session supports the set playback speed command.
long	ACTION_SET_RATING Indicates this session supports the set rating command.
long	ACTION_SKIP_TO_NEXT Indicates this session supports the next command.
long	ACTION_SKIP_TO_PREVIOUS Indicates this session supports the previous command.
long	ACTION_SKIP_TO_QUEUE_ITEM Indicates this session supports the skip to queue item command.
long	ACTION_STOP Indicates this session supports the stop command.
long	PLAYBACK_POSITION_UNKNOWN Use this value for the position to indicate the position is not known.
int	STATE_BUFFERING State indicating this item is currently buffering and will begin playing when enough data has buffered.
int	STATE_CONNECTING State indicating the class doing playback is currently connecting to a new destination.
int	STATE_ERROR State indicating this item is currently in an error state.
int	STATE_FAST_FORWARDING State indicating this item is currently fast forwarding.
int	STATE_NONE This is the default playback state and indicates that no media has been added yet, or the performer has been reset and has no content to play.
int	STATE_PAUSED State indicating this item is currently paused.
int	STATE_PLAYING State indicating this item is currently playing.
int	STATE_REWINDING State indicating this item is currently rewinding.
int	STATE_SKIPPING_TO_NEXT State indicating the player is currently skipping to the next item.
int	STATE_SKIPPING_TO_PREVIOUS State indicating the player is currently skipping to the previous item.
int	STATE_SKIPPING_TO_QUEUE_ITEM State indicating the player is currently skipping to a specific item in the queue.
int	STATE_STOPPED State indicating this item is currently stopped.

Inherited constants

From interface android.os.Parcelable int CONTENTS_FILE_DESCRIPTOR Descriptor bit used with describeContents(): indicates that the Parcelable object's flattened representation includes a file descriptor. int PARCELABLE_WRITE_RETURN_VALUE Flag for use with writeToParcel(Parcel, int): the object being written is a return value, that is the result of a function such as "Parcelable someFunction()", "void someFunction(out Parcelable)", or "void someFunction(inout Parcelable)".

Fields
public static final Creator<PlaybackState>	CREATOR

Public methods
int	describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
long	getActions() Get the current actions available on this session.
long	getActiveQueueItemId() Get the id of the currently active item in the queue.
long	getBufferedPosition() Get the current buffered position in ms.
List<PlaybackState.CustomAction>	getCustomActions() Get the list of custom actions.
CharSequence	getErrorMessage() Get a user readable error message.
Bundle	getExtras() Get any custom extras that were set on this playback state.
long	getLastPositionUpdateTime() Get the elapsed real time at which position was last updated.
float	getPlaybackSpeed() Get the current playback speed as a multiple of normal playback.
long	getPosition() Get the current playback position in ms.
int	getState() Get the current state of playback.
boolean	isActive() Returns whether this is considered as an active playback state.
String	toString() Returns a string representation of the object.
void	writeToParcel(Parcel dest, int flags) Flatten this object in to a Parcel.

Inherited methods
From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
From interface android.os.Parcelable abstract int describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. abstract void writeToParcel(Parcel dest, int flags) Flatten this object in to a Parcel.

Constants

ACTION_FAST_FORWARD

Added in API level 21

public static final long ACTION_FAST_FORWARD

Indicates this session supports the fast forward command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 64 (0x0000000000000040)

ACTION_PAUSE

Added in API level 21

public static final long ACTION_PAUSE

Indicates this session supports the pause command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 2 (0x0000000000000002)

ACTION_PLAY

Added in API level 21

public static final long ACTION_PLAY

Indicates this session supports the play command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 4 (0x0000000000000004)

ACTION_PLAY_FROM_MEDIA_ID

Added in API level 21

public static final long ACTION_PLAY_FROM_MEDIA_ID

Indicates this session supports the play from media id command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 1024 (0x0000000000000400)

ACTION_PLAY_FROM_SEARCH

Added in API level 21

public static final long ACTION_PLAY_FROM_SEARCH

Indicates this session supports the play from search command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 2048 (0x0000000000000800)

ACTION_PLAY_FROM_URI

Added in API level 23

public static final long ACTION_PLAY_FROM_URI

Indicates this session supports the play from URI command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 8192 (0x0000000000002000)

ACTION_PLAY_PAUSE

Added in API level 21

public static final long ACTION_PLAY_PAUSE

Indicates this session supports the play/pause toggle command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 512 (0x0000000000000200)

ACTION_PREPARE

Added in API level 24

public static final long ACTION_PREPARE

Indicates this session supports the prepare command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 16384 (0x0000000000004000)

ACTION_PREPARE_FROM_MEDIA_ID

Added in API level 24

public static final long ACTION_PREPARE_FROM_MEDIA_ID

Indicates this session supports the prepare from media id command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 32768 (0x0000000000008000)

ACTION_PREPARE_FROM_SEARCH

Added in API level 24

public static final long ACTION_PREPARE_FROM_SEARCH

Indicates this session supports the prepare from search command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 65536 (0x0000000000010000)

ACTION_PREPARE_FROM_URI

Added in API level 24

public static final long ACTION_PREPARE_FROM_URI

Indicates this session supports the prepare from URI command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 131072 (0x0000000000020000)

ACTION_REWIND

Added in API level 21

public static final long ACTION_REWIND

Indicates this session supports the rewind command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 8 (0x0000000000000008)

ACTION_SEEK_TO

Added in API level 21

public static final long ACTION_SEEK_TO

Indicates this session supports the seek to command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 256 (0x0000000000000100)

ACTION_SET_PLAYBACK_SPEED

Added in API level 31

public static final long ACTION_SET_PLAYBACK_SPEED

Indicates this session supports the set playback speed command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 4194304 (0x0000000000400000)

ACTION_SET_RATING

Added in API level 21

public static final long ACTION_SET_RATING

Indicates this session supports the set rating command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 128 (0x0000000000000080)

ACTION_SKIP_TO_NEXT

Added in API level 21

public static final long ACTION_SKIP_TO_NEXT

Indicates this session supports the next command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 32 (0x0000000000000020)

ACTION_SKIP_TO_PREVIOUS

Added in API level 21

public static final long ACTION_SKIP_TO_PREVIOUS

Indicates this session supports the previous command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 16 (0x0000000000000010)

ACTION_SKIP_TO_QUEUE_ITEM

Added in API level 21

public static final long ACTION_SKIP_TO_QUEUE_ITEM

Indicates this session supports the skip to queue item command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 4096 (0x0000000000001000)

ACTION_STOP

Added in API level 21

public static final long ACTION_STOP

Indicates this session supports the stop command.

See also:

• PlaybackState.Builder.setActions(long)

Constant Value: 1 (0x0000000000000001)

PLAYBACK_POSITION_UNKNOWN

Added in API level 21

public static final long PLAYBACK_POSITION_UNKNOWN

Use this value for the position to indicate the position is not known.

Constant Value: -1 (0xffffffffffffffff)

STATE_BUFFERING

Added in API level 21

public static final int STATE_BUFFERING

State indicating this item is currently buffering and will begin playing when enough data has buffered.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 6 (0x00000006)

STATE_CONNECTING

Added in API level 21

public static final int STATE_CONNECTING

State indicating the class doing playback is currently connecting to a new destination. Depending on the implementation you may return to the previous state when the connection finishes or enter STATE_NONE. If the connection failed STATE_ERROR should be used.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 8 (0x00000008)

STATE_ERROR

Added in API level 21

public static final int STATE_ERROR

State indicating this item is currently in an error state. The error message should also be set when entering this state.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 7 (0x00000007)

STATE_FAST_FORWARDING

Added in API level 21

public static final int STATE_FAST_FORWARDING

State indicating this item is currently fast forwarding.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 4 (0x00000004)

STATE_NONE

Added in API level 21

public static final int STATE_NONE

This is the default playback state and indicates that no media has been added yet, or the performer has been reset and has no content to play.

See also:

• PlaybackState.Builder.setState(int, long, float)
• PlaybackState.Builder.setState(int, long, float, long)

Constant Value: 0 (0x00000000)

STATE_PAUSED

Added in API level 21

public static final int STATE_PAUSED

State indicating this item is currently paused.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 2 (0x00000002)

STATE_PLAYING

Added in API level 21

public static final int STATE_PLAYING

State indicating this item is currently playing.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 3 (0x00000003)

STATE_REWINDING

Added in API level 21

public static final int STATE_REWINDING

State indicating this item is currently rewinding.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 5 (0x00000005)

STATE_SKIPPING_TO_NEXT

Added in API level 21

public static final int STATE_SKIPPING_TO_NEXT

State indicating the player is currently skipping to the next item.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 10 (0x0000000a)

STATE_SKIPPING_TO_PREVIOUS

Added in API level 21

public static final int STATE_SKIPPING_TO_PREVIOUS

State indicating the player is currently skipping to the previous item.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 9 (0x00000009)

STATE_SKIPPING_TO_QUEUE_ITEM

Added in API level 21

public static final int STATE_SKIPPING_TO_QUEUE_ITEM

State indicating the player is currently skipping to a specific item in the queue.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 11 (0x0000000b)

STATE_STOPPED

Added in API level 21

public static final int STATE_STOPPED

State indicating this item is currently stopped.

See also:

• PlaybackState.Builder.setState(int, long, float)

Constant Value: 1 (0x00000001)

Fields

CREATOR

Added in API level 21

public static final Creator<PlaybackState> CREATOR

Public methods

describeContents

Added in API level 21

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
int	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or CONTENTS_FILE_DESCRIPTOR

getActions

Added in API level 21

public long getActions ()

Get the current actions available on this session. This should use a bitmask of the available actions.

• PlaybackState.ACTION_SKIP_TO_PREVIOUS
• PlaybackState.ACTION_REWIND
• PlaybackState.ACTION_PLAY
• PlaybackState.ACTION_PAUSE
• PlaybackState.ACTION_STOP
• PlaybackState.ACTION_FAST_FORWARD
• PlaybackState.ACTION_SKIP_TO_NEXT
• PlaybackState.ACTION_SEEK_TO
• PlaybackState.ACTION_SET_RATING
• PlaybackState.ACTION_PLAY_PAUSE
• PlaybackState.ACTION_PLAY_FROM_MEDIA_ID
• PlaybackState.ACTION_PLAY_FROM_SEARCH
• PlaybackState.ACTION_SKIP_TO_QUEUE_ITEM
• PlaybackState.ACTION_PLAY_FROM_URI
• PlaybackState.ACTION_PREPARE
• PlaybackState.ACTION_PREPARE_FROM_MEDIA_ID
• PlaybackState.ACTION_PREPARE_FROM_SEARCH
• PlaybackState.ACTION_PREPARE_FROM_URI
• PlaybackState.ACTION_SET_PLAYBACK_SPEED

Returns

long

Value is either 0 or a combination of ACTION_STOP, ACTION_PAUSE, ACTION_PLAY, ACTION_REWIND, ACTION_SKIP_TO_PREVIOUS, ACTION_SKIP_TO_NEXT, ACTION_FAST_FORWARD, ACTION_SET_RATING, ACTION_SEEK_TO, ACTION_PLAY_PAUSE, ACTION_PLAY_FROM_MEDIA_ID, ACTION_PLAY_FROM_SEARCH, ACTION_SKIP_TO_QUEUE_ITEM, ACTION_PLAY_FROM_URI, ACTION_PREPARE, ACTION_PREPARE_FROM_MEDIA_ID, ACTION_PREPARE_FROM_SEARCH, ACTION_PREPARE_FROM_URI, and ACTION_SET_PLAYBACK_SPEED

getActiveQueueItemId

Added in API level 21

public long getActiveQueueItemId ()

Get the id of the currently active item in the queue. If there is no queue or a queue is not supported by the session this will be MediaSession.QueueItem.UNKNOWN_ID.

Returns
long	The id of the currently active item in the queue or MediaSession.QueueItem.UNKNOWN_ID.

getBufferedPosition

Added in API level 21

public long getBufferedPosition ()

Get the current buffered position in ms. This is the farthest playback point that can be reached from the current position using only buffered content.

Returns
long

getCustomActions

Added in API level 21

public List<PlaybackState.CustomAction> getCustomActions ()

Get the list of custom actions.

Returns
List<PlaybackState.CustomAction>

getErrorMessage

Added in API level 21

public CharSequence getErrorMessage ()

Get a user readable error message. This should be set when the state is PlaybackState.STATE_ERROR.

Returns
CharSequence

getExtras

Added in API level 22

public Bundle getExtras ()

Get any custom extras that were set on this playback state.

Returns
Bundle	The extras for this state or null.

getLastPositionUpdateTime

Added in API level 21

public long getLastPositionUpdateTime ()

Get the elapsed real time at which position was last updated. If the position has never been set this will return 0;

Returns
long	The last time the position was updated.

getPlaybackSpeed

Added in API level 21

public float getPlaybackSpeed ()

Get the current playback speed as a multiple of normal playback. This should be negative when rewinding. A value of 1 means normal playback and 0 means paused.

Returns
float	The current speed of playback.

getPosition

Added in API level 21

public long getPosition ()

Get the current playback position in ms.

Returns
long

getState

Added in API level 21

public int getState ()

Get the current state of playback. One of the following:

• PlaybackState.STATE_NONE
• PlaybackState.STATE_STOPPED
• PlaybackState.STATE_PLAYING
• PlaybackState.STATE_PAUSED
• PlaybackState.STATE_FAST_FORWARDING
• PlaybackState.STATE_REWINDING
• PlaybackState.STATE_BUFFERING
• PlaybackState.STATE_ERROR
• PlaybackState.STATE_CONNECTING
• PlaybackState.STATE_SKIPPING_TO_PREVIOUS
• PlaybackState.STATE_SKIPPING_TO_NEXT
• PlaybackState.STATE_SKIPPING_TO_QUEUE_ITEM

Returns
int	Value is STATE_NONE, STATE_STOPPED, STATE_PAUSED, STATE_PLAYING, STATE_FAST_FORWARDING, STATE_REWINDING, STATE_BUFFERING, STATE_ERROR, STATE_CONNECTING, STATE_SKIPPING_TO_PREVIOUS, STATE_SKIPPING_TO_NEXT, or STATE_SKIPPING_TO_QUEUE_ITEM

isActive

Added in API level 31

public boolean isActive ()

Returns whether this is considered as an active playback state.

The playback state is considered as an active if the state is one of the following:

• STATE_BUFFERING
• STATE_CONNECTING
• STATE_FAST_FORWARDING
• STATE_PLAYING
• STATE_REWINDING
• STATE_SKIPPING_TO_NEXT
• STATE_SKIPPING_TO_PREVIOUS
• STATE_SKIPPING_TO_QUEUE_ITEM

Returns
boolean

toString

Added in API level 21

public String toString ()

Returns a string representation of the object.

Returns
String	a string representation of the object.

writeToParcel

Added in API level 21

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest	Parcel: The Parcel in which the object should be written. This value cannot be null.
flags	int: Additional flags about how the object should be written. May be 0 or Parcelable.PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of Parcelable.PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES