这里是我的评级栏：

@Composable
fun RatingBar(
    rating: Float,
    maxRating: Int = 5,
    onRatingChanged: (Float) -> Unit
) {
    Row {
        for (i in 1..maxRating) {
            IconButton(onClick = { onRatingChanged(i.toFloat()) }) {
                if (i <= rating) Icons.Default.Star else Icons.Default.StarBorder
            }
        }
    }
}

当你叫它：

var rating by remember { mutableStateOf(3.5f) }
            RatingBar(
                rating = rating,
                onRatingChanged = { newRating ->
                    rating = newRating
                },
)