Added in API level 16

Summary: Constants | Inherited Constants | Fields | Methods | Inherited Methods

MediaSyncEvent

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Kotlin |Java

public class MediaSyncEvent
extends Object implements Parcelable

java.lang.Object
↳	android.media.MediaSyncEvent

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The MediaSyncEvent class defines events that can be used to synchronize playback or capture actions between different players and recorders.

For instance, AudioRecord.startRecording(MediaSyncEvent) is used to start capture only when the playback on a particular audio session is complete. The audio session ID is retrieved from a player (e.g MediaPlayer, AudioTrack or ToneGenerator) by use of the getAudioSessionId() method.

Summary

Constants
int	SYNC_EVENT_NONE No sync event specified.
int	SYNC_EVENT_PRESENTATION_COMPLETE The corresponding action is triggered only when the presentation is completed (meaning the media has been presented to the user) on the specified session.

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<MediaSyncEvent>	CREATOR

Public methods
static MediaSyncEvent	createEvent(int eventType) Creates a synchronization event of the sepcified type.
int	describeContents() Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
boolean	equals(Object o) Indicates whether some other object is "equal to" this one.
int	getAudioSessionId() Gets the synchronization event audio session ID.
int	getType() Gets the synchronization event type.
int	hashCode() Returns a hash code value for the object.
MediaSyncEvent	setAudioSessionId(int audioSessionId) Sets the event source audio session ID.
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

SYNC_EVENT_NONE

Added in API level 16

public static final int SYNC_EVENT_NONE

No sync event specified. When used with a synchronized playback or capture method, the behavior is equivalent to calling the corresponding non synchronized method.

Constant Value: 0 (0x00000000)

SYNC_EVENT_PRESENTATION_COMPLETE

Added in API level 16

public static final int SYNC_EVENT_PRESENTATION_COMPLETE

The corresponding action is triggered only when the presentation is completed (meaning the media has been presented to the user) on the specified session. A synchronization of this type requires a source audio session ID to be set via setAudioSessionId(int) method.

Constant Value: 1 (0x00000001)

Fields

CREATOR

Added in API level 31

public static final Creator<MediaSyncEvent> CREATOR

Public methods

createEvent

Added in API level 16

public static MediaSyncEvent createEvent (int eventType)

Creates a synchronization event of the sepcified type.

The type specifies which kind of event is monitored. For instance, event SYNC_EVENT_PRESENTATION_COMPLETE corresponds to the audio being presented to the user on a particular audio session.

Parameters
eventType	int: the synchronization event type.

Returns
MediaSyncEvent	the MediaSyncEvent created.

Throws
	java.lang.IllegalArgumentException
IllegalArgumentException

describeContents

Added in API level 31

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

equals

Added in API level 16

public boolean equals (Object o)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o	Object: the reference object with which to compare.

Returns
boolean	true if this object is the same as the obj argument; false otherwise.

getAudioSessionId

Added in API level 16

public int getAudioSessionId ()

Gets the synchronization event audio session ID.

Returns
int	the synchronization audio session ID. The returned audio session ID is 0 if it has not been set.

getType

Added in API level 16

public int getType ()

Gets the synchronization event type.

Returns
int	the synchronization event type.

hashCode

Added in API level 16

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int	a hash code value for this object.

setAudioSessionId

Added in API level 16

public MediaSyncEvent setAudioSessionId (int audioSessionId)

Sets the event source audio session ID.

The audio session ID specifies on which audio session the synchronization event should be monitored. It is mandatory for certain event types (e.g. SYNC_EVENT_PRESENTATION_COMPLETE). For instance, the audio session ID can be retrieved via MediaPlayer.getAudioSessionId() when monitoring an event on a particular MediaPlayer.

Parameters
audioSessionId	int: the audio session ID of the event source being monitored.

Returns
MediaSyncEvent	the MediaSyncEvent the method is called on.

Throws
	java.lang.IllegalArgumentException
IllegalArgumentException

toString

Added in API level 16

public String toString ()

Returns a string representation of the object.

Returns
String	a string representation of the object.

writeToParcel

Added in API level 31

public void writeToParcel (Parcel dest, 
                int flags)

Flatten this object in to a Parcel.

Parameters
dest	Parcel: 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