SortableButton<T> constructor
SortableButton<T> (})
A button to sort & toggle sorting on multiple fields
This is the label and id for the field (must be unique)
Implementation
SortableButton(
this.fields,
this.labelId,
this.onPressed, {
this.buttonText,
required this.fontSize,
// required void Function(List<Field<T>>) onChanged,
});