cupertinoErrorBuilder<T> function

Text? cupertinoErrorBuilder<T>(
  1. FastFormFieldState<T> field
)

A function typically used for building a CupertinoFormRow error widget.

Returns a Text widget when FastFormFieldState.errorText is a String otherwise null.

Implementation

Text? cupertinoErrorBuilder<T>(FastFormFieldState<T> field) {
  final FastFormFieldState<T>(:errorText) = field;
  return errorText is String ? Text(errorText) : null;
}