Beispiel #1
0
 /** 根据Id寻找歌曲 */
 public static Song findSongById(int songId) {
   for (Song s : mSongLib) {
     if (s.getmSongId() == songId) {
       return s;
     }
   }
   return null;
 }
Beispiel #2
0
 /** 获取一个类型下的所有歌曲 */
 public static ArrayList<Song> getGenreSongs(Genre genre) {
   ArrayList<Song> songs = new ArrayList<>();
   for (Song s : mSongLib) {
     if (s.getmGenreId() == genre.getmGenreId()) {
       songs.add(s);
     }
   }
   return songs;
 }
Beispiel #3
0
 /** 获取该歌手的所有歌曲 */
 public static ArrayList<Song> getArtistSong(Artist artist) {
   ArrayList<Song> songs = new ArrayList<>();
   for (Song s : mSongLib) {
     if (s.getmArtistId() == artist.getmArtistId()) {
       songs.add(s);
     }
   }
   return songs;
 }
Beispiel #4
0
  /**
   * 获取专辑下的所有歌曲
   *
   * @return 同一专辑的所有歌
   */
  public static ArrayList<Song> getAlbumSongs(Album album) {
    ArrayList<Song> songs = new ArrayList<>();
    for (Song s : mSongLib) {
      if (s.getmAlbumId() == album.getmAlbumId()) {
        songs.add(s);
      }
    }

    return songs;
  }
Beispiel #5
0
  /** 扫描类型, 并将Song与Genre关联 */
  public static ArrayList<Genre> scanGenres(Context context) {
    LogUtils.v(TAG, "scanGenres() called");
    ArrayList<Genre> genres = new ArrayList<>();
    Cursor cursor =
        context
            .getContentResolver()
            .query(
                MediaStore.Audio.Genres.EXTERNAL_CONTENT_URI,
                genreProjection,
                null,
                null,
                MediaStore.Audio.Genres.NAME + " ASC");

    LogUtils.v(TAG, cursor.getCount() + "");
    for (int i = 0; i < cursor.getCount(); i++) {
      cursor.moveToPosition(i);
      int genreId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Genres._ID));
      String genreName = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Genres.NAME));

      // LogUtils.v(TAG, "get genres : id = " + genreId + "  name = " + genreName);
      Genre genre = new Genre(genreId, genreName);
      genres.add(genre);

      // 将歌曲与类型关联
      Cursor genreCursor =
          context
              .getContentResolver()
              .query(
                  MediaStore.Audio.Genres.Members.getContentUri("external", genreId),
                  new String[] {MediaStore.Audio.Media._ID},
                  MediaStore.Audio.Media.IS_MUSIC + " != 0 ",
                  null,
                  null);
      genreCursor.moveToFirst();
      for (int j = 0; j < genreCursor.getCount(); j++) {
        genreCursor.moveToPosition(j);
        int index = genreCursor.getColumnIndex(MediaStore.Audio.Media._ID);
        final Song song = findSongById(genreCursor.getInt(index));
        if (song != null) {
          song.setmGenreId(genreId);
        }
      }
      genreCursor.close();
    }

    cursor.close();
    return genres;
  }
Beispiel #6
0
  /** 向歌单添加音乐 */
  public static void addSongToPlaylist(
      final Context context, final PlayList playlist, final Song song) {
    Cursor cur =
        context
            .getContentResolver()
            .query(
                MediaStore.Audio.Playlists.Members.getContentUri(
                    "external", playlist.getmPlayListId()),
                null,
                null,
                null,
                MediaStore.Audio.Playlists.Members.TRACK + " ASC");

    long count = 0;
    if (cur.moveToLast()) {
      count = cur.getLong(cur.getColumnIndex(MediaStore.Audio.Playlists.Members.TRACK));
    }
    cur.close();

    ContentValues values = new ContentValues();
    values.put(MediaStore.Audio.Playlists.Members.PLAY_ORDER, count + 1);
    values.put(MediaStore.Audio.Playlists.Members.AUDIO_ID, song.getmSongId());

    Uri uri =
        MediaStore.Audio.Playlists.Members.getContentUri("external", playlist.getmPlayListId());
    ContentResolver resolver = context.getContentResolver();
    resolver.insert(uri, values);
    resolver.notifyChange(Uri.parse("content://media"), null);
  }
Beispiel #7
0
 /** 获取歌曲的专辑,每首歌只有一个专辑 */
 public static ArrayList<Album> getSongAlbum(Song song) {
   ArrayList<Album> albums = new ArrayList<>();
   for (Album a : mAlbumLib) {
     if (a.getmAlbumId() == song.getmAlbumId()) {
       albums.add(a);
       break;
     }
   }
   return albums;
 }