buildWithChild method
A build method that receives an extra child
parameter.
This method may be called with a child
different from the parameter
passed to the constructor of SingleChildStatelessModifier.
It may also be called again with a different child
, without this widget
being recreated.
Implementation
@override
Widget buildWithChild(BuildContext context, Widget? child) {
return FormField<T>(
key: modifierKey,
autovalidateMode: autovalidateMode,
enabled: enabled,
initialValue: initialValue,
onSaved: onSaved,
restorationId: restorationId,
validator: validator,
builder: (FormFieldState<T> field) => builder(field, child),
);
}