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MediaMetadataCompat

public final class MediaMetadataCompat
extends Object implements Parcelable

java.lang.Object
   ↳ android.support.v4.media.MediaMetadataCompat

Contains metadata about an item, such as the title, artist, etc.

Summary

Nested classes

class MediaMetadataCompat.Builder

Use to build MediaMetadata objects. 

Constants

String METADATA_KEY_ALBUM

The album title for the media.

String METADATA_KEY_ALBUM_ART

The artwork for the album of the media's original source as a Bitmap.

String METADATA_KEY_ALBUM_ARTIST

The artist for the album of the media's original source.

String METADATA_KEY_ALBUM_ART_URI

The artwork for the album of the media's original source as a Uri style String.

String METADATA_KEY_ART

The artwork for the media as a Bitmap.

String METADATA_KEY_ARTIST

The artist of the media.

String METADATA_KEY_ART_URI

The artwork for the media as a Uri style String.

String METADATA_KEY_AUTHOR

The author of the media.

String METADATA_KEY_COMPILATION

The compilation status of the media.

String METADATA_KEY_COMPOSER

The composer of the media.

String METADATA_KEY_DATE

The date the media was created or published.

String METADATA_KEY_DISC_NUMBER

The disc number for the media's original source.

String METADATA_KEY_DISPLAY_DESCRIPTION

A description that is suitable for display to the user.

String METADATA_KEY_DISPLAY_ICON

An icon or thumbnail that is suitable for display to the user.

String METADATA_KEY_DISPLAY_ICON_URI

An icon or thumbnail that is suitable for display to the user.

String METADATA_KEY_DISPLAY_SUBTITLE

A subtitle that is suitable for display to the user.

String METADATA_KEY_DISPLAY_TITLE

A title that is suitable for display to the user.

String METADATA_KEY_DURATION

The duration of the media in ms.

String METADATA_KEY_GENRE

The genre of the media.

String METADATA_KEY_MEDIA_ID

A String key for identifying the content.

String METADATA_KEY_NUM_TRACKS

The number of tracks in the media's original source.

String METADATA_KEY_RATING

The overall rating for the media.

String METADATA_KEY_TITLE

The title of the media.

String METADATA_KEY_TRACK_NUMBER

The track number for the media.

String METADATA_KEY_USER_RATING

The user's rating for the media.

String METADATA_KEY_WRITER

The writer of the media.

String METADATA_KEY_YEAR

The year the media was created or published as a long.

Inherited constants

From interface android.os.Parcelable

Fields

public static final Creator<MediaMetadataCompat> CREATOR

Public methods

boolean containsKey(String key)

Returns true if the given key is contained in the metadata

int describeContents()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.

static MediaMetadataCompat fromMediaMetadata(Object metadataObj)

Creates an instance from a framework MediaMetadata object.

Bitmap getBitmap(String key)

Return a Bitmap for the given key or null if no bitmap exists for the given key.

Bundle getBundle()

Gets the bundle backing the metadata object.

MediaDescriptionCompat getDescription()

Returns a simple description of this metadata for display purposes.

long getLong(String key)

Returns the value associated with the given key, or 0L if no long exists for the given key.

Object getMediaMetadata()

Gets the underlying framework MediaMetadata object.

RatingCompat getRating(String key)

Return a RatingCompat for the given key or null if no rating exists for the given key.

String getString(String key)

Returns the value associated with the given key, or null if no mapping of the desired type exists for the given key or a null value is explicitly associated with the key.

CharSequence getText(String key)

Returns the value associated with the given key, or null if no mapping of the desired type exists for the given key or a null value is explicitly associated with the key.

Set<String> keySet()

Returns a Set containing the Strings used as keys in this metadata.

int size()

Get the number of fields in this metadata.

void writeToParcel(Parcel dest, int flags)

Flatten this object in to a Parcel.

Inherited methods

From class java.lang.Object
From interface android.os.Parcelable

Constants

METADATA_KEY_ALBUM

String METADATA_KEY_ALBUM

The album title for the media.

Constant Value: "android.media.metadata.ALBUM"

METADATA_KEY_ALBUM_ART

String METADATA_KEY_ALBUM_ART

The artwork for the album of the media's original source as a Bitmap.

Constant Value: "android.media.metadata.ALBUM_ART"

METADATA_KEY_ALBUM_ARTIST

String METADATA_KEY_ALBUM_ARTIST

The artist for the album of the media's original source.

Constant Value: "android.media.metadata.ALBUM_ARTIST"

METADATA_KEY_ALBUM_ART_URI

String METADATA_KEY_ALBUM_ART_URI

The artwork for the album of the media's original source as a Uri style String.

Constant Value: "android.media.metadata.ALBUM_ART_URI"

METADATA_KEY_ART

String METADATA_KEY_ART

The artwork for the media as a Bitmap.

Constant Value: "android.media.metadata.ART"

METADATA_KEY_ARTIST

String METADATA_KEY_ARTIST

The artist of the media.

Constant Value: "android.media.metadata.ARTIST"

METADATA_KEY_ART_URI

String METADATA_KEY_ART_URI

The artwork for the media as a Uri style String.

Constant Value: "android.media.metadata.ART_URI"

METADATA_KEY_AUTHOR

String METADATA_KEY_AUTHOR

The author of the media.

Constant Value: "android.media.metadata.AUTHOR"

METADATA_KEY_COMPILATION

String METADATA_KEY_COMPILATION

The compilation status of the media.

Constant Value: "android.media.metadata.COMPILATION"

METADATA_KEY_COMPOSER

String METADATA_KEY_COMPOSER

The composer of the media.

Constant Value: "android.media.metadata.COMPOSER"

METADATA_KEY_DATE

String METADATA_KEY_DATE

The date the media was created or published. The format is unspecified but RFC 3339 is recommended.

Constant Value: "android.media.metadata.DATE"

METADATA_KEY_DISC_NUMBER

String METADATA_KEY_DISC_NUMBER

The disc number for the media's original source.

Constant Value: "android.media.metadata.DISC_NUMBER"

METADATA_KEY_DISPLAY_DESCRIPTION

String METADATA_KEY_DISPLAY_DESCRIPTION

A description that is suitable for display to the user. When displaying more information for media described by this metadata this should be preferred to other fields if present.

Constant Value: "android.media.metadata.DISPLAY_DESCRIPTION"

METADATA_KEY_DISPLAY_ICON

String METADATA_KEY_DISPLAY_ICON

An icon or thumbnail that is suitable for display to the user. When displaying an icon for media described by this metadata this should be preferred to other fields if present. This must be a Bitmap.

Constant Value: "android.media.metadata.DISPLAY_ICON"

METADATA_KEY_DISPLAY_ICON_URI

String METADATA_KEY_DISPLAY_ICON_URI

An icon or thumbnail that is suitable for display to the user. When displaying more information for media described by this metadata the display description should be preferred to other fields when present. This must be a Uri style String.

Constant Value: "android.media.metadata.DISPLAY_ICON_URI"

METADATA_KEY_DISPLAY_SUBTITLE

String METADATA_KEY_DISPLAY_SUBTITLE

A subtitle that is suitable for display to the user. When displaying a second line for media described by this metadata this should be preferred to other fields if present.

Constant Value: "android.media.metadata.DISPLAY_SUBTITLE"

METADATA_KEY_DISPLAY_TITLE

String METADATA_KEY_DISPLAY_TITLE

A title that is suitable for display to the user. This will generally be the same as METADATA_KEY_TITLE but may differ for some formats. When displaying media described by this metadata this should be preferred if present.

Constant Value: "android.media.metadata.DISPLAY_TITLE"

METADATA_KEY_DURATION

String METADATA_KEY_DURATION

The duration of the media in ms. A negative duration indicates that the duration is unknown (or infinite).

Constant Value: "android.media.metadata.DURATION"

METADATA_KEY_GENRE

String METADATA_KEY_GENRE

The genre of the media.

Constant Value: "android.media.metadata.GENRE"

METADATA_KEY_MEDIA_ID

String METADATA_KEY_MEDIA_ID

A String key for identifying the content. This value is specific to the service providing the content. If used, this should be a persistent unique key for the underlying content.

Constant Value: "android.media.metadata.MEDIA_ID"

METADATA_KEY_NUM_TRACKS

String METADATA_KEY_NUM_TRACKS

The number of tracks in the media's original source.

Constant Value: "android.media.metadata.NUM_TRACKS"

METADATA_KEY_RATING

String METADATA_KEY_RATING

The overall rating for the media.

See also:

Constant Value: "android.media.metadata.RATING"

METADATA_KEY_TITLE

String METADATA_KEY_TITLE

The title of the media.

Constant Value: "android.media.metadata.TITLE"

METADATA_KEY_TRACK_NUMBER

String METADATA_KEY_TRACK_NUMBER

The track number for the media.

Constant Value: "android.media.metadata.TRACK_NUMBER"

METADATA_KEY_USER_RATING

String METADATA_KEY_USER_RATING

The user's rating for the media.

See also:

Constant Value: "android.media.metadata.USER_RATING"

METADATA_KEY_WRITER

String METADATA_KEY_WRITER

The writer of the media.

Constant Value: "android.media.metadata.WRITER"

METADATA_KEY_YEAR

String METADATA_KEY_YEAR

The year the media was created or published as a long.

Constant Value: "android.media.metadata.YEAR"

Fields

CREATOR

Creator<MediaMetadataCompat> CREATOR

Public methods

containsKey

boolean containsKey (String key)

Returns true if the given key is contained in the metadata

Parameters
key String: a String key
Returns
boolean true if the key exists in this metadata, false otherwise

describeContents

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(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.

fromMediaMetadata

MediaMetadataCompat fromMediaMetadata (Object metadataObj)

Creates an instance from a framework MediaMetadata object.

This method is only supported on LOLLIPOP and later.

Parameters
metadataObj Object: A MediaMetadata object, or null if none.
Returns
MediaMetadataCompat An equivalent MediaMetadataCompat object, or null if none.

getBitmap

Bitmap getBitmap (String key)

Return a Bitmap for the given key or null if no bitmap exists for the given key.

Parameters
key String: The key the value is stored under
Returns
Bitmap A Bitmap or null

getBundle

Bundle getBundle ()

Gets the bundle backing the metadata object. This is available to support backwards compatibility. Apps should not modify the bundle directly.

Returns
Bundle The Bundle backing this metadata.

getDescription

MediaDescriptionCompat getDescription ()

Returns a simple description of this metadata for display purposes.

Returns
MediaDescriptionCompat A simple description of this metadata.

getLong

long getLong (String key)

Returns the value associated with the given key, or 0L if no long exists for the given key.

Parameters
key String: The key the value is stored under
Returns
long a long value

getMediaMetadata

Object getMediaMetadata ()

Gets the underlying framework MediaMetadata object.

This method is only supported on LOLLIPOP and later.

Returns
Object An equivalent MediaMetadata object, or null if none.

getRating

RatingCompat getRating (String key)

Return a RatingCompat for the given key or null if no rating exists for the given key.

Parameters
key String: The key the value is stored under
Returns
RatingCompat A RatingCompat or null

getString

String getString (String key)

Returns the value associated with the given key, or null if no mapping of the desired type exists for the given key or a null value is explicitly associated with the key.

Parameters
key String: The key the value is stored under
Returns
String a String value, or null

getText

CharSequence getText (String key)

Returns the value associated with the given key, or null if no mapping of the desired type exists for the given key or a null value is explicitly associated with the key.

Parameters
key String: The key the value is stored under
Returns
CharSequence a CharSequence value, or null

keySet

Set<String> keySet ()

Returns a Set containing the Strings used as keys in this metadata.

Returns
Set<String> a Set of String keys

size

int size ()

Get the number of fields in this metadata.

Returns
int The number of fields in the metadata.

writeToParcel

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.
flags int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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