ResponsiveBuilder constructor
      const
      ResponsiveBuilder({ 
    
    
- Key? key,
- required Widget builder(- BuildContext context,
- SizingInformation sizingInformation
 
- ScreenBreakpoints? breakpoints,
Implementation
const ResponsiveBuilder({
  Key? key,
  required this.builder,
  this.breakpoints,
}) : super(key: key);