Java 类android.media.MediaMetadataEditor 实例源码

@Override
public void onClientMetadataUpdate(RemoteController.MetadataEditor data) {
    mMetadata.trackTitle = data.getString(MediaMetadataRetriever.METADATA_KEY_TITLE,
            mMetadata.trackTitle);
    mMetadata.bitmap = data.getBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK,
            mMetadata.bitmap);
    mClientIdLost = false;
    if ((mMetadata.trackTitle != null
            && !mMetadata.trackTitle.equals(mCurrentTrack))
        || (mMetadata.bitmap != null && !mMetadata.bitmap.sameAs(mCurrentBitmap))) {
        mCurrentTrack = mMetadata.trackTitle;
        mCurrentBitmap = mMetadata.bitmap;
        refreshState();
        if (DEBUG) log(getKey() + ": onClientMetadataUpdate");
    }
}

/**
 * Updates {@link #mMetadata metadata} from given remote metadata class.
 * This also updates play state.
 *
 * @param data Object of metadata to update from, or {@code null} to clear local metadata.
 * @see #clearMetadata()
 */
private void updateMetadata(@Nullable RemoteController.MetadataEditor data) {
    if (data == null) {
        if (mMetadata.isEmpty()) return;
        mMetadata.clear();
    } else {
        mMetadata.title = data.getString(MediaMetadataRetriever.METADATA_KEY_TITLE, null);
        mMetadata.artist = data.getString(MediaMetadataRetriever.METADATA_KEY_ARTIST, null);
        mMetadata.album = data.getString(MediaMetadataRetriever.METADATA_KEY_ALBUM, null);
        mMetadata.duration = data.getLong(MediaMetadataRetriever.METADATA_KEY_DURATION, -1);
        mMetadata.bitmap = data.getBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, null);
        mMetadata.generateSubtitle();
    }

    notifyOnMetadataChanged();
}

@SuppressWarnings("deprecation")
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void updateRemoteControlClient(final String what) {
    //Legacy for ICS
    if (mRemoteControlClient != null) {
        int playState = mIsSupposedToBePlaying
                ? RemoteControlClient.PLAYSTATE_PLAYING
                : RemoteControlClient.PLAYSTATE_PAUSED;
        if (what.equals(META_CHANGED) || what.equals(QUEUE_CHANGED)) {
            Bitmap albumArt = null;
            if (mShowAlbumArtOnLockscreen) {
                albumArt = ImageLoader.getInstance().loadImageSync(TimberUtils.getAlbumArtUri(getAlbumId()).toString());
                if (albumArt != null) {

                    Bitmap.Config config = albumArt.getConfig();
                    if (config == null) {
                        config = Bitmap.Config.ARGB_8888;
                    }
                    albumArt = albumArt.copy(config, false);
                }
            }

            RemoteControlClient.MetadataEditor editor = mRemoteControlClient.editMetadata(true);
            editor.putString(MediaMetadataRetriever.METADATA_KEY_ALBUM, getAlbumName());
            editor.putString(MediaMetadataRetriever.METADATA_KEY_ARTIST, getArtistName());
            editor.putString(MediaMetadataRetriever.METADATA_KEY_TITLE, getTrackName());
            editor.putLong(MediaMetadataRetriever.METADATA_KEY_DURATION, duration());
            editor.putBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, albumArt);
            editor.apply();

        }
        mRemoteControlClient.setPlaybackState(playState);
    }
}

private synchronized Void updateClientBitmap(Bitmap bitmap) {
    if (remoteClientBitmap == bitmap) return null;

    final RemoteControlClient.MetadataEditor metaData = remoteControlClient.editMetadata(false);
    metaData.putBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, bitmap).apply();

    // Track the remote client bitmap and recycle it in case the remote control client
    // does not properly recycle the bitmap
    if (remoteClientBitmap != null) remoteClientBitmap.recycle();
    remoteClientBitmap = bitmap;

    return null;
}

@Override
public void onClientMetadataUpdate(RemoteController.MetadataEditor metadataEditor) {
    // isRemoteControllerPlaying = true;

    durationObject = metadataEditor.getObject(MediaMetadataRetriever.METADATA_KEY_DURATION, 1200); //allow it to pass if not present
    artist = metadataEditor.getString(MediaMetadataRetriever.METADATA_KEY_ARTIST,
            metadataEditor.getString(MediaMetadataRetriever.METADATA_KEY_ALBUMARTIST, ""));
    track = metadataEditor.getString(MediaMetadataRetriever.METADATA_KEY_TITLE, "");
    Bitmap artwork = metadataEditor.getBitmap(MediaMetadataEditor.BITMAP_KEY_ARTWORK, null);

    mediaControllerCallback.saveArtwork(this, artwork, artist, track);
}

@TargetApi(Build.VERSION_CODES.KITKAT)
public static int BITMAP_KEY_ARTWORK() {
    return ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) ?
        MediaMetadataEditor.BITMAP_KEY_ARTWORK : _BITMAP_KEY_ARTWORK);
}

public Metadata(MediaMetadataEditor editor) {
    bundle = new Bundle();
    bundle.putBoolean(TAG, true); // Leave our mark!
    initFromMetadata(editor);
}

@TargetApi(Build.VERSION_CODES.KITKAT)
public static int BITMAP_KEY_ARTWORK() {
    return ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) ?
        MediaMetadataEditor.BITMAP_KEY_ARTWORK : _BITMAP_KEY_ARTWORK);
}

public Metadata(MediaMetadataEditor editor) {
    bundle = new Bundle();
    bundle.putBoolean(TAG, true); // Leave our mark!
    initFromMetadata(editor);
}

/**
 * @return A {@link android.support.v4.media.MediaMetadataCompat} built from
 * a {@link android.media.MediaMetadataEditor} meant to bridge the two APIs.
 */
public static MediaMetadataCompat buildMediaMetadata(MediaMetadataEditor editor) {
    return mediaMetadata(editor).build();
}

/**
 * @return A {@link android.support.v4.media.MediaMetadataCompat} built from
 * a {@link android.media.MediaMetadataEditor} meant to bridge the two APIs.
 */
public static MediaMetadataCompat buildMediaMetadata(MediaMetadataEditor editor) {
    return mediaMetadata(editor).build();
}