Focus.withExternalFocusNode constructor Null safety
Creates a Focus widget that uses the given focusNode as the source of
truth for attributes on the node, rather than the attributes of this widget.
Implementation
const factory Focus.withExternalFocusNode({
  Key? key,
  required Widget child,
  required FocusNode focusNode,
  bool autofocus,
  ValueChanged<bool>? onFocusChange,
  bool includeSemantics,
}) = _FocusWithExternalFocusNode;