Jack He | f02d3c6 | 2017-02-21 00:39:22 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.music.utils; |
| 18 | |
| 19 | import android.content.ContentResolver; |
| 20 | import android.content.ContentUris; |
| 21 | import android.content.ContentValues; |
| 22 | import android.content.Context; |
| 23 | import android.database.Cursor; |
| 24 | import android.graphics.Bitmap; |
| 25 | import android.graphics.BitmapFactory; |
| 26 | import android.graphics.drawable.BitmapDrawable; |
| 27 | import android.media.MediaActionSound; |
| 28 | import android.media.MediaMetadata; |
| 29 | import android.media.MediaMetadataRetriever; |
| 30 | import android.net.Uri; |
| 31 | import android.os.AsyncTask; |
| 32 | import android.provider.MediaStore; |
| 33 | import android.util.Log; |
| 34 | import com.android.music.MediaPlaybackService; |
| 35 | import com.android.music.MusicUtils; |
| 36 | import com.android.music.R; |
| 37 | |
| 38 | import java.io.File; |
| 39 | import java.util.*; |
| 40 | import java.util.concurrent.ConcurrentHashMap; |
| 41 | import java.util.concurrent.ConcurrentMap; |
| 42 | |
| 43 | /* |
| 44 | A provider of music contents to the music application, it reads external storage for any music |
| 45 | files, parse them and |
| 46 | store them in this class for future use. |
| 47 | */ |
| 48 | public class MusicProvider { |
| 49 | private static final String TAG = "MusicProvider"; |
| 50 | |
| 51 | // Public constants |
| 52 | public static final String UNKOWN = "UNKNOWN"; |
| 53 | // Uri source of this track |
| 54 | public static final String CUSTOM_METADATA_TRACK_SOURCE = "__SOURCE__"; |
| 55 | // Sort key for this tack |
| 56 | public static final String CUSTOM_METADATA_SORT_KEY = "__SORT_KEY__"; |
| 57 | |
| 58 | // Content select criteria |
| 59 | private static final String MUSIC_SELECT_FILTER = MediaStore.Audio.Media.IS_MUSIC + " != 0"; |
| 60 | private static final String MUSIC_SORT_ORDER = MediaStore.Audio.Media.TITLE + " ASC"; |
| 61 | |
| 62 | // Categorized caches for music track data: |
| 63 | private Context mContext; |
| 64 | // Album Name --> list of Metadata |
| 65 | private ConcurrentMap<String, List<MediaMetadata>> mMusicListByAlbum; |
| 66 | // Playlist Name --> list of Metadata |
| 67 | private ConcurrentMap<String, List<MediaMetadata>> mMusicListByPlaylist; |
| 68 | // Artist Name --> Map of (album name --> album metadata) |
| 69 | private ConcurrentMap<String, Map<String, MediaMetadata>> mArtistAlbumDb; |
| 70 | private List<MediaMetadata> mMusicList; |
| 71 | private final ConcurrentMap<Long, Song> mMusicListById; |
| 72 | private final ConcurrentMap<String, Song> mMusicListByMediaId; |
| 73 | |
| 74 | enum State { NON_INITIALIZED, INITIALIZING, INITIALIZED } |
| 75 | |
| 76 | private volatile State mCurrentState = State.NON_INITIALIZED; |
| 77 | |
| 78 | public MusicProvider(Context context) { |
| 79 | mContext = context; |
| 80 | mArtistAlbumDb = new ConcurrentHashMap<>(); |
| 81 | mMusicListByAlbum = new ConcurrentHashMap<>(); |
| 82 | mMusicListByPlaylist = new ConcurrentHashMap<>(); |
| 83 | mMusicListById = new ConcurrentHashMap<>(); |
| 84 | mMusicList = new ArrayList<>(); |
| 85 | mMusicListByMediaId = new ConcurrentHashMap<>(); |
| 86 | mMusicListByPlaylist.put(MediaIDHelper.MEDIA_ID_NOW_PLAYING, new ArrayList<>()); |
| 87 | } |
| 88 | |
| 89 | public boolean isInitialized() { |
| 90 | return mCurrentState == State.INITIALIZED; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Get an iterator over the list of artists |
| 95 | * |
| 96 | * @return list of artists |
| 97 | */ |
| 98 | public Iterable<String> getArtists() { |
| 99 | if (mCurrentState != State.INITIALIZED) { |
| 100 | return Collections.emptyList(); |
| 101 | } |
| 102 | return mArtistAlbumDb.keySet(); |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Get an iterator over the list of albums |
| 107 | * |
| 108 | * @return list of albums |
| 109 | */ |
| 110 | public Iterable<MediaMetadata> getAlbums() { |
| 111 | if (mCurrentState != State.INITIALIZED) { |
| 112 | return Collections.emptyList(); |
| 113 | } |
| 114 | ArrayList<MediaMetadata> albumList = new ArrayList<>(); |
| 115 | for (Map<String, MediaMetadata> artist_albums : mArtistAlbumDb.values()) { |
| 116 | albumList.addAll(artist_albums.values()); |
| 117 | } |
| 118 | return albumList; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Get an iterator over the list of playlists |
| 123 | * |
| 124 | * @return list of playlists |
| 125 | */ |
| 126 | public Iterable<String> getPlaylists() { |
| 127 | if (mCurrentState != State.INITIALIZED) { |
| 128 | return Collections.emptyList(); |
| 129 | } |
| 130 | return mMusicListByPlaylist.keySet(); |
| 131 | } |
| 132 | |
| 133 | public Iterable<MediaMetadata> getMusicList() { |
| 134 | return mMusicList; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Get albums of a certain artist |
| 139 | * |
| 140 | */ |
| 141 | public Iterable<MediaMetadata> getAlbumByArtist(String artist) { |
| 142 | if (mCurrentState != State.INITIALIZED || !mArtistAlbumDb.containsKey(artist)) { |
| 143 | return Collections.emptyList(); |
| 144 | } |
| 145 | return mArtistAlbumDb.get(artist).values(); |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * Get music tracks of the given album |
| 150 | * |
| 151 | */ |
| 152 | public Iterable<MediaMetadata> getMusicsByAlbum(String album) { |
| 153 | if (mCurrentState != State.INITIALIZED || !mMusicListByAlbum.containsKey(album)) { |
| 154 | return Collections.emptyList(); |
| 155 | } |
| 156 | return mMusicListByAlbum.get(album); |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Get music tracks of the given playlist |
| 161 | * |
| 162 | */ |
| 163 | public Iterable<MediaMetadata> getMusicsByPlaylist(String playlist) { |
| 164 | if (mCurrentState != State.INITIALIZED || !mMusicListByPlaylist.containsKey(playlist)) { |
| 165 | return Collections.emptyList(); |
| 166 | } |
| 167 | return mMusicListByPlaylist.get(playlist); |
| 168 | } |
| 169 | |
| 170 | /** |
| 171 | * Return the MediaMetadata for the given musicID. |
| 172 | * |
| 173 | * @param musicId The unique, non-hierarchical music ID. |
| 174 | */ |
| 175 | public Song getMusicById(long musicId) { |
| 176 | return mMusicListById.containsKey(musicId) ? mMusicListById.get(musicId) : null; |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Return the MediaMetadata for the given musicID. |
| 181 | * |
| 182 | * @param musicId The unique, non-hierarchical music ID. |
| 183 | */ |
| 184 | public Song getMusicByMediaId(String musicId) { |
| 185 | return mMusicListByMediaId.containsKey(musicId) ? mMusicListByMediaId.get(musicId) : null; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Very basic implementation of a search that filter music tracks which title containing |
| 190 | * the given query. |
| 191 | * |
| 192 | */ |
| 193 | public Iterable<MediaMetadata> searchMusic(String titleQuery) { |
| 194 | if (mCurrentState != State.INITIALIZED) { |
| 195 | return Collections.emptyList(); |
| 196 | } |
| 197 | ArrayList<MediaMetadata> result = new ArrayList<>(); |
| 198 | titleQuery = titleQuery.toLowerCase(); |
| 199 | for (Song song : mMusicListByMediaId.values()) { |
| 200 | if (song.getMetadata() |
| 201 | .getString(MediaMetadata.METADATA_KEY_TITLE) |
| 202 | .toLowerCase() |
| 203 | .contains(titleQuery)) { |
| 204 | result.add(song.getMetadata()); |
| 205 | } |
| 206 | } |
| 207 | return result; |
| 208 | } |
| 209 | |
| 210 | public interface MusicProviderCallback { void onMusicCatalogReady(boolean success); } |
| 211 | |
| 212 | /** |
| 213 | * Get the list of music tracks from disk and caches the track information |
| 214 | * for future reference, keying tracks by musicId and grouping by genre. |
| 215 | */ |
| 216 | public void retrieveMediaAsync(final MusicProviderCallback callback) { |
| 217 | Log.d(TAG, "retrieveMediaAsync called"); |
| 218 | if (mCurrentState == State.INITIALIZED) { |
| 219 | // Nothing to do, execute callback immediately |
| 220 | callback.onMusicCatalogReady(true); |
| 221 | return; |
| 222 | } |
| 223 | |
| 224 | // Asynchronously load the music catalog in a separate thread |
| 225 | new AsyncTask<Void, Void, State>() { |
| 226 | @Override |
| 227 | protected State doInBackground(Void... params) { |
| 228 | mCurrentState = State.INITIALIZING; |
| 229 | if (retrieveMedia()) { |
| 230 | mCurrentState = State.INITIALIZED; |
| 231 | } else { |
| 232 | mCurrentState = State.NON_INITIALIZED; |
| 233 | } |
| 234 | return mCurrentState; |
| 235 | } |
| 236 | |
| 237 | @Override |
| 238 | protected void onPostExecute(State current) { |
| 239 | if (callback != null) { |
| 240 | callback.onMusicCatalogReady(current == State.INITIALIZED); |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | .execute(); |
| 245 | } |
| 246 | |
| 247 | public synchronized boolean retrieveAllPlayLists() { |
| 248 | Cursor cursor = mContext.getContentResolver().query( |
| 249 | MediaStore.Audio.Playlists.EXTERNAL_CONTENT_URI, null, null, null, null); |
| 250 | if (cursor == null) { |
| 251 | Log.e(TAG, "Failed to retreive playlist: cursor is null"); |
| 252 | return false; |
| 253 | } |
| 254 | if (!cursor.moveToFirst()) { |
| 255 | Log.d(TAG, "Failed to move cursor to first row (no query result)"); |
| 256 | cursor.close(); |
| 257 | return true; |
| 258 | } |
| 259 | int idColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists._ID); |
| 260 | int nameColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.NAME); |
| 261 | int pathColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.DATA); |
| 262 | do { |
| 263 | long thisId = cursor.getLong(idColumn); |
| 264 | String thisPath = cursor.getString(pathColumn); |
| 265 | String thisName = cursor.getString(nameColumn); |
| 266 | Log.i(TAG, "PlayList ID: " + thisId + " Name: " + thisName); |
| 267 | List<MediaMetadata> songList = retreivePlaylistMetadata(thisId, thisPath); |
| 268 | LogHelper.i(TAG, "Found ", songList.size(), " items for playlist name: ", thisName); |
| 269 | mMusicListByPlaylist.put(thisName, songList); |
| 270 | } while (cursor.moveToNext()); |
| 271 | cursor.close(); |
| 272 | return true; |
| 273 | } |
| 274 | |
| 275 | public synchronized List<MediaMetadata> retreivePlaylistMetadata( |
| 276 | long playlistId, String playlistPath) { |
| 277 | Cursor cursor = mContext.getContentResolver().query(Uri.parse(playlistPath), null, |
| 278 | MediaStore.Audio.Playlists.Members.PLAYLIST_ID + " == " + playlistId, null, null); |
| 279 | if (cursor == null) { |
| 280 | Log.e(TAG, "Failed to retreive individual playlist: cursor is null"); |
| 281 | return null; |
| 282 | } |
| 283 | if (!cursor.moveToFirst()) { |
| 284 | Log.d(TAG, "Failed to move cursor to first row (no query result for playlist)"); |
| 285 | cursor.close(); |
| 286 | return null; |
| 287 | } |
| 288 | List<Song> songList = new ArrayList<>(); |
| 289 | int idColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.Members._ID); |
| 290 | int audioIdColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.Members.AUDIO_ID); |
| 291 | int orderColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.Members.PLAY_ORDER); |
| 292 | int audioPathColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.Members.DATA); |
| 293 | int audioNameColumn = cursor.getColumnIndex(MediaStore.Audio.Playlists.Members.TITLE); |
| 294 | do { |
| 295 | long thisId = cursor.getLong(idColumn); |
| 296 | long thisAudioId = cursor.getLong(audioIdColumn); |
| 297 | long thisOrder = cursor.getLong(orderColumn); |
| 298 | String thisAudioPath = cursor.getString(audioPathColumn); |
| 299 | Log.i(TAG, |
| 300 | "Playlist ID: " + playlistId + " Music ID: " + thisAudioId |
| 301 | + " Name: " + audioNameColumn); |
| 302 | if (!mMusicListById.containsKey(thisAudioId)) { |
| 303 | LogHelper.d(TAG, "Music does not exist"); |
| 304 | continue; |
| 305 | } |
| 306 | Song song = mMusicListById.get(thisAudioId); |
| 307 | song.setSortKey(thisOrder); |
| 308 | songList.add(song); |
| 309 | } while (cursor.moveToNext()); |
| 310 | cursor.close(); |
| 311 | songList.sort(new Comparator<Song>() { |
| 312 | @Override |
| 313 | public int compare(Song s1, Song s2) { |
| 314 | long key1 = s1.getSortKey(); |
| 315 | long key2 = s2.getSortKey(); |
| 316 | if (key1 < key2) { |
| 317 | return -1; |
| 318 | } else if (key1 == key2) { |
| 319 | return 0; |
| 320 | } else { |
| 321 | return 1; |
| 322 | } |
| 323 | } |
| 324 | }); |
| 325 | List<MediaMetadata> metadataList = new ArrayList<>(); |
| 326 | for (Song song : songList) { |
| 327 | metadataList.add(song.getMetadata()); |
| 328 | } |
| 329 | return metadataList; |
| 330 | } |
| 331 | |
| 332 | private synchronized boolean retrieveMedia() { |
| 333 | Cursor cursor = |
| 334 | mContext.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, |
| 335 | null, MUSIC_SELECT_FILTER, null, MUSIC_SORT_ORDER); |
| 336 | if (cursor == null) { |
| 337 | Log.e(TAG, "Failed to retreive music: cursor is null"); |
| 338 | mCurrentState = State.NON_INITIALIZED; |
| 339 | return false; |
| 340 | } |
| 341 | if (!cursor.moveToFirst()) { |
| 342 | Log.d(TAG, "Failed to move cursor to first row (no query result)"); |
| 343 | cursor.close(); |
| 344 | return true; |
| 345 | } |
| 346 | int idColumn = cursor.getColumnIndex(MediaStore.Audio.Media._ID); |
| 347 | int titleColumn = cursor.getColumnIndex(MediaStore.Audio.Media.TITLE); |
| 348 | int pathColumn = cursor.getColumnIndex(MediaStore.Audio.Media.DATA); |
| 349 | do { |
| 350 | Log.i(TAG, |
| 351 | "Music ID: " + cursor.getString(idColumn) |
| 352 | + " Title: " + cursor.getString(titleColumn)); |
| 353 | long thisId = cursor.getLong(idColumn); |
| 354 | String thisPath = cursor.getString(pathColumn); |
| 355 | MediaMetadata metadata = retrievMediaMetadata(thisId, thisPath); |
| 356 | Log.i(TAG, "MediaMetadata: " + metadata); |
| 357 | if (metadata == null) { |
| 358 | continue; |
| 359 | } |
| 360 | Song thisSong = new Song(thisId, metadata, null); |
| 361 | // Construct per feature database |
| 362 | mMusicList.add(metadata); |
| 363 | mMusicListById.put(thisId, thisSong); |
| 364 | mMusicListByMediaId.put(String.valueOf(thisId), thisSong); |
| 365 | addMusicToAlbumList(metadata); |
| 366 | addMusicToArtistList(metadata); |
| 367 | } while (cursor.moveToNext()); |
| 368 | cursor.close(); |
| 369 | return true; |
| 370 | } |
| 371 | |
| 372 | private synchronized MediaMetadata retrievMediaMetadata(long musicId, String musicPath) { |
| 373 | LogHelper.d(TAG, "getting metadata for music: ", musicPath); |
| 374 | MediaMetadataRetriever retriever = new MediaMetadataRetriever(); |
| 375 | Uri contentUri = ContentUris.withAppendedId( |
| 376 | android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, musicId); |
| 377 | if (!(new File(musicPath).exists())) { |
| 378 | LogHelper.d(TAG, "Does not exist, deleting item"); |
| 379 | mContext.getContentResolver().delete(contentUri, null, null); |
| 380 | return null; |
| 381 | } |
| 382 | retriever.setDataSource(mContext, contentUri); |
| 383 | String title = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_TITLE); |
| 384 | String album = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ALBUM); |
| 385 | String artist = retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_ARTIST); |
| 386 | String durationString = |
| 387 | retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION); |
| 388 | long duration = durationString != null ? Long.parseLong(durationString) : 0; |
| 389 | MediaMetadata.Builder metadataBuilder = |
| 390 | new MediaMetadata.Builder() |
| 391 | .putString(MediaMetadata.METADATA_KEY_MEDIA_ID, String.valueOf(musicId)) |
| 392 | .putString(CUSTOM_METADATA_TRACK_SOURCE, musicPath) |
| 393 | .putString(MediaMetadata.METADATA_KEY_TITLE, title != null ? title : UNKOWN) |
| 394 | .putString(MediaMetadata.METADATA_KEY_ALBUM, album != null ? album : UNKOWN) |
| 395 | .putString( |
| 396 | MediaMetadata.METADATA_KEY_ARTIST, artist != null ? artist : UNKOWN) |
| 397 | .putLong(MediaMetadata.METADATA_KEY_DURATION, duration); |
| 398 | byte[] albumArtData = retriever.getEmbeddedPicture(); |
| 399 | Bitmap bitmap; |
| 400 | if (albumArtData != null) { |
| 401 | bitmap = BitmapFactory.decodeByteArray(albumArtData, 0, albumArtData.length); |
| 402 | bitmap = MusicUtils.resizeBitmap(bitmap, getDefaultAlbumArt()); |
| 403 | metadataBuilder.putBitmap(MediaMetadata.METADATA_KEY_ALBUM_ART, bitmap); |
| 404 | } |
| 405 | retriever.release(); |
| 406 | return metadataBuilder.build(); |
| 407 | } |
| 408 | |
| 409 | private Bitmap getDefaultAlbumArt() { |
| 410 | BitmapFactory.Options opts = new BitmapFactory.Options(); |
| 411 | opts.inPreferredConfig = Bitmap.Config.ARGB_8888; |
| 412 | return BitmapFactory.decodeStream( |
| 413 | mContext.getResources().openRawResource(R.drawable.albumart_mp_unknown), null, |
| 414 | opts); |
| 415 | } |
| 416 | |
| 417 | private void addMusicToAlbumList(MediaMetadata metadata) { |
| 418 | String thisAlbum = metadata.getString(MediaMetadata.METADATA_KEY_ALBUM); |
| 419 | if (thisAlbum == null) { |
| 420 | thisAlbum = UNKOWN; |
| 421 | } |
| 422 | if (!mMusicListByAlbum.containsKey(thisAlbum)) { |
| 423 | mMusicListByAlbum.put(thisAlbum, new ArrayList<>()); |
| 424 | } |
| 425 | mMusicListByAlbum.get(thisAlbum).add(metadata); |
| 426 | } |
| 427 | |
| 428 | private void addMusicToArtistList(MediaMetadata metadata) { |
| 429 | String thisArtist = metadata.getString(MediaMetadata.METADATA_KEY_ARTIST); |
| 430 | if (thisArtist == null) { |
| 431 | thisArtist = UNKOWN; |
| 432 | } |
| 433 | String thisAlbum = metadata.getString(MediaMetadata.METADATA_KEY_ALBUM); |
| 434 | if (thisAlbum == null) { |
| 435 | thisAlbum = UNKOWN; |
| 436 | } |
| 437 | if (!mArtistAlbumDb.containsKey(thisArtist)) { |
| 438 | mArtistAlbumDb.put(thisArtist, new ConcurrentHashMap<>()); |
| 439 | } |
| 440 | Map<String, MediaMetadata> albumsMap = mArtistAlbumDb.get(thisArtist); |
| 441 | MediaMetadata.Builder builder; |
| 442 | long count = 0; |
| 443 | Bitmap thisAlbumArt = metadata.getBitmap(MediaMetadata.METADATA_KEY_ALBUM_ART); |
| 444 | if (albumsMap.containsKey(thisAlbum)) { |
| 445 | MediaMetadata album_metadata = albumsMap.get(thisAlbum); |
| 446 | count = album_metadata.getLong(MediaMetadata.METADATA_KEY_NUM_TRACKS); |
| 447 | Bitmap nAlbumArt = album_metadata.getBitmap(MediaMetadata.METADATA_KEY_ALBUM_ART); |
| 448 | builder = new MediaMetadata.Builder(album_metadata); |
| 449 | if (nAlbumArt != null) { |
| 450 | thisAlbumArt = null; |
| 451 | } |
| 452 | } else { |
| 453 | builder = new MediaMetadata.Builder(); |
| 454 | builder.putString(MediaMetadata.METADATA_KEY_ALBUM, thisAlbum) |
| 455 | .putString(MediaMetadata.METADATA_KEY_ARTIST, thisArtist); |
| 456 | } |
| 457 | if (thisAlbumArt != null) { |
| 458 | builder.putBitmap(MediaMetadata.METADATA_KEY_ALBUM_ART, thisAlbumArt); |
| 459 | } |
| 460 | builder.putLong(MediaMetadata.METADATA_KEY_NUM_TRACKS, count + 1); |
| 461 | albumsMap.put(thisAlbum, builder.build()); |
| 462 | } |
| 463 | |
| 464 | public synchronized void updateMusic(String musicId, MediaMetadata metadata) { |
| 465 | Song song = mMusicListByMediaId.get(musicId); |
| 466 | if (song == null) { |
| 467 | return; |
| 468 | } |
| 469 | |
| 470 | String oldGenre = song.getMetadata().getString(MediaMetadata.METADATA_KEY_GENRE); |
| 471 | String newGenre = metadata.getString(MediaMetadata.METADATA_KEY_GENRE); |
| 472 | |
| 473 | song.setMetadata(metadata); |
| 474 | |
| 475 | // if genre has changed, we need to rebuild the list by genre |
| 476 | if (!oldGenre.equals(newGenre)) { |
| 477 | // buildListsByGenre(); |
| 478 | } |
| 479 | } |
| 480 | } |