onValueChanged property

(dynamic Function(double value)?) onValueChanged

onValueChanged if it is not null RatingStars is able to click to change the value, and it is calculated by rounded star count only. Ex: maxValue is 12, starCount is 5, clicked on 3th star, onValueChanged is called with value is 3*12/5=7.2

Implementation

final Function(double value)? onValueChanged;