EmailField.len constructor Null safety

  1. int len,
  2. {bool trim = false,
  3. String? blank,
  4. String? malformed,
  5. String? long,
  6. String? initialValue,
  7. FormFieldValidator<String>? validator,
  8. TextEditingController? controller,
  9. InputDecoration? decoration = const InputDecoration(),
  10. TextInputAction? textInputAction,
  11. TextStyle? style,
  12. TextDirection? textDirection,
  13. TextAlign textAlign = TextAlign.start,
  14. bool readOnly = false,
  15. String obscuringCharacter = '•',
  16. bool obscureText = false,
  17. bool autocorrect = true,
  18. int? maxLength,
  19. ValueChanged<String>? onChanged,
  20. VoidCallback? onEditingComplete,
  21. ValueChanged<String>? onFieldSubmitted,
  22. FormFieldSetter<String>? onSaved,
  23. List<TextInputFormatter>? inputFormatters,
  24. bool? enabled,
  25. EdgeInsets scrollPadding = const EdgeInsets.all(20.0),
  26. bool enableInteractiveSelection = true,
  27. AutovalidateMode? autovalidateMode,
  28. Key? key}

Email field that limits the length of the email to up to len characters.

len the maximum length of an email address; it must be > 0. trim whether or not to trim the entered email. validator an optional extra validation step. blank the error message in case of blank field; if omitted, the field will not be made required. malformed the error message in case of a malformed email. long the error message if the length of the entered email > len.


  int len, {
  bool trim = false,
  String? blank,
  String? malformed,
  String? long,
  String? initialValue,
  FormFieldValidator<String>? validator,
  TextEditingController? controller,
  InputDecoration? decoration = const InputDecoration(),
  TextInputAction? textInputAction,
  TextStyle? style,
  TextDirection? textDirection,
  TextAlign textAlign = TextAlign.start,
  bool readOnly = false,
  String obscuringCharacter = '•',
  bool obscureText = false,
  bool autocorrect = true,
  int? maxLength,
  ValueChanged<String>? onChanged,
  VoidCallback? onEditingComplete,
  ValueChanged<String>? onFieldSubmitted,
  FormFieldSetter<String>? onSaved,
  List<TextInputFormatter>? inputFormatters,
  bool? enabled,
  EdgeInsets scrollPadding = const EdgeInsets.all(20.0),
  bool enableInteractiveSelection = true,
  AutovalidateMode? autovalidateMode,
  Key? key,
}) : this(
        validator: Pair.str2(Len.max(len, long: long), validator ?? _dummy),
        malformed: malformed,
        blank: blank,
        trim: trim,
        controller: controller,
        initialValue: initialValue,
        decoration: decoration,
        textInputAction: textInputAction,
        style: style,
        textDirection: textDirection,
        textAlign: textAlign,
        readOnly: readOnly,
        obscuringCharacter: obscuringCharacter,
        obscureText: obscureText,
        autocorrect: autocorrect,
        maxLength: maxLength,
        onChanged: onChanged,
        onEditingComplete: onEditingComplete,
        onFieldSubmitted: onFieldSubmitted,
        onSaved: onSaved,
        inputFormatters: inputFormatters,
        enabled: enabled,
        scrollPadding: scrollPadding,
        enableInteractiveSelection: enableInteractiveSelection,
        autovalidateMode: autovalidateMode,
        key: key,