合并Cursor之MergeCursor

   

mPlaylistMemberCols = new String[] {MediaStore.Audio.Playlists.Members._ID,MediaStore.Audio.Media.TITLE,MediaStore.Audio.Media.ARTIST,MediaStore.Audio.Playlists.Members.PLAY_ORDER,MediaStore.Audio.Playlists.Members.AUDIO_ID,MediaStore.Audio.Media.IS_MUSIC};private Cursor mergerAddCursor(Cursor cursor){Cursor[] cursors = new Cursor[2]; cursors[1] = cursor;MatrixCursor addCursor = new MatrixCursor(mPlaylistMemberCols); addCursor.addRow(new Object[] {9999, "9999", "9999", 0, 9999, false});cursors[0] = addCursor;Cursor mergerCursor = new MergeCursor(cursors);return mergerCursor;}