Implement getSongByTypeId

src/ch/blinkenlights/android/vanilla/MediaUtils.java

@@ -405,6 +405,27 @@ public class MediaUtils {
 		sAllSongs = null;
 	}
 
+	/**
+	 * Returns the first matching song (or NULL) of given type + id combination
+	 *
+	 * @param resolver A ContentResolver to use.
+	 * @param type The MediaTye to query
+	 * @param id The id of given type to query
+	 */
+	public static Song getSongByTypeId(ContentResolver resolver, int type, long id) {
+		Song song = new Song(-1);
+		QueryTask query = buildQuery(type, id, Song.FILLED_PROJECTION, null);
+		Cursor cursor = query.runQuery(resolver);
+		if (cursor != null) {
+			if (cursor.getCount() > 0) {
+				cursor.moveToPosition(0);
+				song.populate(cursor);
+			}
+			cursor.close();
+		}
+		return song.id == -1 ? null : song;
+	}
+
 	/**
 	 * Returns a song randomly selected from all the songs in the Android
 	 * MediaStore.