The value that I put in initialrating doesn't change when rebuilding.

[NathanDeTroyer]

RatingBar widget I use:
RatingBar(
initialRating:
user.recommendations[indexOfCurrentSong].rating.toDouble(),
minRating: 1,
direction: Axis.horizontal,
allowHalfRating: false,
itemCount: 5,
itemPadding: EdgeInsets.symmetric(horizontal: 1),
ratingWidget: RatingWidget(
empty: Icon(
Icons.star,
color: Colors.grey,
),
half: Icon(
Icons.star_half,
color: Theme.of(context).colorScheme.primary,
),
full: Icon(
Icons.star,
color: Theme.of(context).colorScheme.primary,
)),
onRatingUpdate: (rating) {
//TO DO: add a rating update to the server!!!!
user.recommendations[indexOfCurrentSong].rating =
rating.toInt();

              user.setSongRating(indexOfCurrentSong, rating.toInt());
              print(rating);
            },
          )

When rebuilding the page with the setState() method, the rating stays the old rating and not the 'new' initialrating.