IT. Expert System.

public final class MediaStore
extends Object

• Nested Class Summary

  Nested Classes

  Modifier and Type	Class and Description
  static class	MediaStore.Audio Container for all audio content.
  static class	MediaStore.Files Media provider table containing an index of all files in the media storage, including non-media files.
  static class	MediaStore.Images Contains meta data for all available images.
  static interface	MediaStore.MediaColumns Common fields for most MediaProvider tables
  static class	MediaStore.Video

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static String	ACTION_IMAGE_CAPTURE Standard Intent action that can be sent to have the camera application capture an image and return it.
  static String	ACTION_IMAGE_CAPTURE_SECURE Intent action that can be sent to have the camera application capture an image and return it when the device is secured (e.g.
  static String	ACTION_MTP_SESSION_END Broadcast Action: A broadcast to indicate the end of an MTP session with the host.
  static String	ACTION_VIDEO_CAPTURE Standard Intent action that can be sent to have the camera application capture a video and return it.
  static String	AUTHORITY
  static String	EXTRA_DURATION_LIMIT Specify the maximum allowed recording duration in seconds.
  static String	EXTRA_FINISH_ON_COMPLETION The name of the Intent-extra used to control the onCompletion behavior of a MovieView.
  static String	EXTRA_FULL_SCREEN The name of an Intent-extra used to control the UI of a ViewImage.
  static String	EXTRA_MEDIA_ALBUM The name of the Intent-extra used to define the album
  static String	EXTRA_MEDIA_ARTIST The name of the Intent-extra used to define the artist
  static String	EXTRA_MEDIA_FOCUS The name of the Intent-extra used to define the search focus.
  static String	EXTRA_MEDIA_TITLE The name of the Intent-extra used to define the song title
  static String	EXTRA_OUTPUT The name of the Intent-extra used to indicate a content resolver Uri to be used to store the requested image or video.
  static String	EXTRA_SCREEN_ORIENTATION The name of the Intent-extra used to control the orientation of a ViewImage or a MovieView.
  static String	EXTRA_SHOW_ACTION_ICONS The name of an Intent-extra used to control the UI of a ViewImage.
  static String	EXTRA_SIZE_LIMIT Specify the maximum allowed size.
  static String	EXTRA_VIDEO_QUALITY The name of the Intent-extra used to control the quality of a recorded video.
  static String	INTENT_ACTION_MEDIA_PLAY_FROM_SEARCH An intent to perform a search for music media and automatically play content from the result when possible.
  static String	INTENT_ACTION_MEDIA_SEARCH Activity Action: Perform a search for media.
  static String	INTENT_ACTION_MUSIC_PLAYER Deprecated. Use Intent.CATEGORY_APP_MUSIC instead.
  static String	INTENT_ACTION_STILL_IMAGE_CAMERA The name of the Intent action used to launch a camera in still image mode.
  static String	INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE The name of the Intent action used to launch a camera in still image mode for use when the device is secured (e.g.
  static String	INTENT_ACTION_TEXT_OPEN_FROM_SEARCH An intent to perform a search for readable media and automatically play content from the result when possible.
  static String	INTENT_ACTION_VIDEO_CAMERA The name of the Intent action used to launch a camera in video mode.
  static String	INTENT_ACTION_VIDEO_PLAY_FROM_SEARCH An intent to perform a search for video media and automatically play content from the result when possible.
  static String	MEDIA_IGNORE_FILENAME Name of the file signaling the media scanner to ignore media in the containing directory and its subdirectories.
  static String	MEDIA_SCANNER_VOLUME Name of current volume being scanned by the media scanner.
  static String	PARAM_DELETE_DATA This is for internal use by the media scanner only.
  static String	UNHIDE_CALL The method name used by the media scanner and mtp to tell the media provider to rescan and reclassify that have become unhidden because of renaming folders or removing nomedia files
  static String	UNKNOWN_STRING The string that is used when a media attribute is not known.

• Constructor Summary

  Constructors

  Constructor and Description
  MediaStore()

• Method Summary

  Methods

  Modifier and Type	Method and Description
  static Uri	getMediaScannerUri() Uri for querying the state of the media scanner.
  static String	getVersion(Context context) Get the media provider's version.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Field Detail

  • AUTHORITY

    public static final String AUTHORITY

    See Also:

    Constant Field Values

  • ACTION_MTP_SESSION_END

    public static final String ACTION_MTP_SESSION_END

    Broadcast Action: A broadcast to indicate the end of an MTP session with the host. This broadcast is only sent if MTP activity has modified the media database during the most recent MTP session.

    See Also:

    Constant Field Values

  • UNHIDE_CALL

    public static final String UNHIDE_CALL

    The method name used by the media scanner and mtp to tell the media provider to rescan and reclassify that have become unhidden because of renaming folders or removing nomedia files

    See Also:

    Constant Field Values

  • PARAM_DELETE_DATA

    public static final String PARAM_DELETE_DATA

    This is for internal use by the media scanner only. Name of the (optional) Uri parameter that determines whether to skip deleting the file pointed to by the _data column, when deleting the database entry. The only appropriate value for this parameter is "false", in which case the delete will be skipped. Note especially that setting this to true, or omitting the parameter altogether, will perform the default action, which is different for different types of media.

    See Also:

    Constant Field Values

  • INTENT_ACTION_MUSIC_PLAYER

    @Deprecated
    public static final String INTENT_ACTION_MUSIC_PLAYER

    Deprecated. Use Intent.CATEGORY_APP_MUSIC instead.
    Activity Action: Launch a music player. The activity should be able to play, browse, or manipulate music files stored on the device.

    See Also:

    Constant Field Values

  • INTENT_ACTION_MEDIA_SEARCH

    public static final String INTENT_ACTION_MEDIA_SEARCH

    Activity Action: Perform a search for media. Contains at least the SearchManager.QUERY extra. May also contain any combination of the following extras: EXTRA_MEDIA_ARTIST, EXTRA_MEDIA_ALBUM, EXTRA_MEDIA_TITLE, EXTRA_MEDIA_FOCUS

    See Also:

    EXTRA_MEDIA_ARTIST, EXTRA_MEDIA_ALBUM, EXTRA_MEDIA_TITLE, EXTRA_MEDIA_FOCUS, Constant Field Values

  • INTENT_ACTION_MEDIA_PLAY_FROM_SEARCH

    public static final String INTENT_ACTION_MEDIA_PLAY_FROM_SEARCH

    An intent to perform a search for music media and automatically play content from the result when possible. This can be fired, for example, by the result of a voice recognition command to listen to music.

    Contains the SearchManager.QUERY extra, which is a string that can contain any type of unstructured music search, like the name of an artist, an album, a song, a genre, or any combination of these.

    Because this intent includes an open-ended unstructured search string, it makes the most sense for apps that can support large-scale search of music, such as services connected to an online database of music which can be streamed and played on the device.

    See Also:

    Constant Field Values

  • INTENT_ACTION_TEXT_OPEN_FROM_SEARCH

    public static final String INTENT_ACTION_TEXT_OPEN_FROM_SEARCH

    An intent to perform a search for readable media and automatically play content from the result when possible. This can be fired, for example, by the result of a voice recognition command to read a book or magazine.

    Contains the SearchManager.QUERY extra, which is a string that can contain any type of unstructured text search, like the name of a book or magazine, an author a genre, a publisher, or any combination of these.

    Because this intent includes an open-ended unstructured search string, it makes the most sense for apps that can support large-scale search of text media, such as services connected to an online database of books and/or magazines which can be read on the device.

    See Also:

    Constant Field Values

  • INTENT_ACTION_VIDEO_PLAY_FROM_SEARCH

    public static final String INTENT_ACTION_VIDEO_PLAY_FROM_SEARCH

    An intent to perform a search for video media and automatically play content from the result when possible. This can be fired, for example, by the result of a voice recognition command to play movies.

    Contains the SearchManager.QUERY extra, which is a string that can contain any type of unstructured video search, like the name of a movie, one or more actors, a genre, or any combination of these.

    Because this intent includes an open-ended unstructured search string, it makes the most sense for apps that can support large-scale search of video, such as services connected to an online database of videos which can be streamed and played on the device.

    See Also:

    Constant Field Values

  • EXTRA_MEDIA_ARTIST

    public static final String EXTRA_MEDIA_ARTIST

    The name of the Intent-extra used to define the artist

    See Also:

    Constant Field Values

  • EXTRA_MEDIA_ALBUM

    public static final String EXTRA_MEDIA_ALBUM

    The name of the Intent-extra used to define the album

    See Also:

    Constant Field Values

  • EXTRA_MEDIA_TITLE

    public static final String EXTRA_MEDIA_TITLE

    The name of the Intent-extra used to define the song title

    See Also:

    Constant Field Values

  • EXTRA_MEDIA_FOCUS

    public static final String EXTRA_MEDIA_FOCUS

    The name of the Intent-extra used to define the search focus. The search focus indicates whether the search should be for things related to the artist, album or song that is identified by the other extras.

    See Also:

    Constant Field Values

  • EXTRA_SCREEN_ORIENTATION

    public static final String EXTRA_SCREEN_ORIENTATION

    The name of the Intent-extra used to control the orientation of a ViewImage or a MovieView. This is an int property that overrides the activity's requestedOrientation.

    See Also:

    android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED, Constant Field Values

  • EXTRA_FULL_SCREEN

    public static final String EXTRA_FULL_SCREEN

    The name of an Intent-extra used to control the UI of a ViewImage. This is a boolean property that overrides the activity's default fullscreen state.

    See Also:

    Constant Field Values

  • EXTRA_SHOW_ACTION_ICONS

    public static final String EXTRA_SHOW_ACTION_ICONS

    The name of an Intent-extra used to control the UI of a ViewImage. This is a boolean property that specifies whether or not to show action icons.

    See Also:

    Constant Field Values

  • EXTRA_FINISH_ON_COMPLETION

    public static final String EXTRA_FINISH_ON_COMPLETION

    The name of the Intent-extra used to control the onCompletion behavior of a MovieView. This is a boolean property that specifies whether or not to finish the MovieView activity when the movie completes playing. The default value is true, which means to automatically exit the movie player activity when the movie completes playing.

    See Also:

    Constant Field Values

  • INTENT_ACTION_STILL_IMAGE_CAMERA

    public static final String INTENT_ACTION_STILL_IMAGE_CAMERA

    The name of the Intent action used to launch a camera in still image mode.

    See Also:

    Constant Field Values

  • INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE

    public static final String INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE

    The name of the Intent action used to launch a camera in still image mode for use when the device is secured (e.g. with a pin, password, pattern, or face unlock). Applications responding to this intent must not expose any personal content like existing photos or videos on the device. The applications should be careful not to share any photo or video with other applications or internet. The activity should use WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED to display on top of the lock screen while secured. There is no activity stack when this flag is used, so launching more than one activity is strongly discouraged.

    See Also:

    Constant Field Values

  • INTENT_ACTION_VIDEO_CAMERA

    public static final String INTENT_ACTION_VIDEO_CAMERA

    The name of the Intent action used to launch a camera in video mode.

    See Also:

    Constant Field Values

  • ACTION_IMAGE_CAPTURE

    public static final String ACTION_IMAGE_CAPTURE

    Standard Intent action that can be sent to have the camera application capture an image and return it.

    The caller may pass an extra EXTRA_OUTPUT to control where this image will be written. If the EXTRA_OUTPUT is not present, then a small sized image is returned as a Bitmap object in the extra field. This is useful for applications that only need a small image. If the EXTRA_OUTPUT is present, then the full-sized image will be written to the Uri value of EXTRA_OUTPUT.

    See Also:

    EXTRA_OUTPUT, Constant Field Values

  • ACTION_IMAGE_CAPTURE_SECURE

    public static final String ACTION_IMAGE_CAPTURE_SECURE

    Intent action that can be sent to have the camera application capture an image and return it when the device is secured (e.g. with a pin, password, pattern, or face unlock). Applications responding to this intent must not expose any personal content like existing photos or videos on the device. The applications should be careful not to share any photo or video with other applications or internet. The activity should use WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED to display on top of the lock screen while secured. There is no activity stack when this flag is used, so launching more than one activity is strongly discouraged.

    The caller may pass an extra EXTRA_OUTPUT to control where this image will be written. If the EXTRA_OUTPUT is not present, then a small sized image is returned as a Bitmap object in the extra field. This is useful for applications that only need a small image. If the EXTRA_OUTPUT is present, then the full-sized image will be written to the Uri value of EXTRA_OUTPUT.

    See Also:

    ACTION_IMAGE_CAPTURE, EXTRA_OUTPUT, Constant Field Values

  • ACTION_VIDEO_CAPTURE

    public static final String ACTION_VIDEO_CAPTURE

    Standard Intent action that can be sent to have the camera application capture a video and return it.

    The caller may pass in an extra EXTRA_VIDEO_QUALITY to control the video quality.

    The caller may pass in an extra EXTRA_OUTPUT to control where the video is written. If EXTRA_OUTPUT is not present the video will be written to the standard location for videos, and the Uri of that location will be returned in the data field of the Uri.

    See Also:

    EXTRA_OUTPUT, EXTRA_VIDEO_QUALITY, EXTRA_SIZE_LIMIT, EXTRA_DURATION_LIMIT, Constant Field Values

  • EXTRA_VIDEO_QUALITY

    public static final String EXTRA_VIDEO_QUALITY

    The name of the Intent-extra used to control the quality of a recorded video. This is an integer property. Currently value 0 means low quality, suitable for MMS messages, and value 1 means high quality. In the future other quality levels may be added.

    See Also:

    Constant Field Values

  • EXTRA_SIZE_LIMIT

    public static final String EXTRA_SIZE_LIMIT

    Specify the maximum allowed size.

    See Also:

    Constant Field Values

  • EXTRA_DURATION_LIMIT

    public static final String EXTRA_DURATION_LIMIT

    Specify the maximum allowed recording duration in seconds.

    See Also:

    Constant Field Values

  • EXTRA_OUTPUT

    public static final String EXTRA_OUTPUT

    The name of the Intent-extra used to indicate a content resolver Uri to be used to store the requested image or video.

    See Also:

    Constant Field Values

  • UNKNOWN_STRING

    public static final String UNKNOWN_STRING

    The string that is used when a media attribute is not known. For example, if an audio file does not have any meta data, the artist and album columns will be set to this value.

    See Also:

    Constant Field Values

  • MEDIA_SCANNER_VOLUME

    public static final String MEDIA_SCANNER_VOLUME

    Name of current volume being scanned by the media scanner.

    See Also:

    Constant Field Values

  • MEDIA_IGNORE_FILENAME

    public static final String MEDIA_IGNORE_FILENAME

    Name of the file signaling the media scanner to ignore media in the containing directory and its subdirectories. Developers should use this to avoid application graphics showing up in the Gallery and likewise prevent application sounds and music from showing up in the Music app.

    See Also:

    Constant Field Values

• Constructor Detail

  • MediaStore

    public MediaStore()

• Method Detail

  • getMediaScannerUri

    public static Uri getMediaScannerUri()

    Uri for querying the state of the media scanner.

  • getVersion

    public static String getVersion(Context context)

    Get the media provider's version. Applications that import data from the media provider into their own caches can use this to detect that the media provider changed, and reimport data as needed. No other assumptions should be made about the meaning of the version.

    Parameters:

    context - Context to use for performing the query.

    Returns:

    A version string, or null if the version could not be determined.