DigitField class

Digit-only Form Field.

Non-digit characters must somehow be filtered out so that they do not appear in the form field. To achieve this, this widget:

• sets up a validator to block non-digit characters;
• sets the inputFormatters attribute to FilteringTextInputFormatter.digitsOnly;
• sets the keyboardType to TextInputType.number.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• DigitField

Constructors

DigitField({bool trim = false, FormFieldValidator<String>? validator, String? blank, String? malformed, String? initialValue, TextEditingController? controller, InputDecoration? decoration, 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, bool? enabled, EdgeInsets scrollPadding = const EdgeInsets.all(20.0), bool enableInteractiveSelection = true, AutovalidateMode? autovalidateMode, Key? key})

Digit-only Form Field.

DigitField.len(int len, {bool trim = false, FormFieldValidator<String>? validator, String? malformed, String? blank, String? diff, String? initialValue, TextEditingController? controller, InputDecoration? decoration, 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, bool? enabled, EdgeInsets scrollPadding = const EdgeInsets.all(20.0), bool enableInteractiveSelection = true, AutovalidateMode? autovalidateMode, Key? key})

Digit-only form field with length constraint.

DigitField.max(int max, {bool trim = false, FormFieldValidator<String>? validator, String? blank, String? malformed, String? long, String? initialValue, TextEditingController? controller, InputDecoration? decoration, 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, bool? enabled, EdgeInsets scrollPadding = const EdgeInsets.all(20.0), bool enableInteractiveSelection = true, AutovalidateMode? autovalidateMode, Key? key})

Digit-only form field with maximum length constraint.

DigitField.min(int min, {bool trim = false, FormFieldValidator<String>? validator, String? blank, String? malformed, String? short, String? initialValue, TextEditingController? controller, InputDecoration? decoration, 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, bool? enabled, EdgeInsets scrollPadding = const EdgeInsets.all(20.0), bool enableInteractiveSelection = true, AutovalidateMode? autovalidateMode, Key? key})

Digit-only form field with minimum length constraint.

DigitField.range(int min, int max, {bool trim = false, FormFieldValidator<String>? validator, String? blank, String? malformed, String? short, String? long, String? initialValue, TextEditingController? controller, InputDecoration? decoration, 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, bool? enabled, EdgeInsets scrollPadding = const EdgeInsets.all(20.0), bool enableInteractiveSelection = true, AutovalidateMode? autovalidateMode, Key? key})

Digit-only form field with length range constraint.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build(BuildContext context) → BasicTextField

Builds a BasicTextField suitable for digit-only values.

override

createElement() → StatelessElement

Creates a StatelessElement to manage this widget's location in the tree.

inherited

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited