ButtonTonal.icon constructor Null safety

ButtonTonal.icon(
  1. {Key? key,
  2. VoidCallback? onPressed,
  3. VoidCallback? onLongPress,
  4. ValueChanged<bool>? onHover,
  5. ValueChanged<bool>? onFocusChange,
  6. ButtonStyle? style,
  7. FocusNode? focusNode,
  8. bool? autofocus,
  9. Clip? clipBehavior,
  10. required Widget icon,
  11. required Widget label}
)

Implementation

factory ButtonTonal.icon({
  Key? key,
  VoidCallback? onPressed,
  VoidCallback? onLongPress,
  ValueChanged<bool>? onHover,
  ValueChanged<bool>? onFocusChange,
  ButtonStyle? style,
  FocusNode? focusNode,
  bool? autofocus,
  Clip? clipBehavior,
  required Widget icon,
  required Widget label,
}) {
  return ButtonTonal(
    key: key,
    onPressed: onPressed,
    onLongPress: onLongPress,
    onHover: onHover,
    onFocusChange: onFocusChange,
    style: style,
    focusNode: focusNode,
    autofocus: autofocus ?? false,
    clipBehavior: clipBehavior ?? Clip.none,
    child: ButtonIcon(
      icon: icon,
      label: label,
    ),
  );
}