XDoubleFormField class

A form field of an optional double: a DoubleField whose value, text and arrows follow its XFormField.

onChanged is called once for every typed or stepped value and once for every reset.

Inheritance

Constructors

XDoubleFormField({required XFormField<double?> field, Object groupId = EditableText, double? initialValue, InputDecoration decoration = const InputDecoration(), TextInputAction? textInputAction, TextStyle? style, StrutStyle? strutStyle, TextDirection? textDirection, TextAlign textAlign = TextAlign.start, TextAlignVertical? textAlignVertical, bool autofocus = false, WidgetStatesController? statesController, bool readOnly = false, bool? showCursor, bool expands = false, ValueChanged<double?>? onChanged, GestureTapCallback? onTap, bool onTapAlwaysCalled = false, TapRegionCallback? onTapOutside, TapRegionUpCallback? onTapUpOutside, VoidCallback? onEditingComplete, ValueChanged<double?>? onFieldSubmitted, FormFieldSetter<double?>? onSaved, FormFieldValidator<double?>? validator, bool enabled = true, bool? ignorePointers, double cursorWidth = 2.0, double? cursorHeight, Radius? cursorRadius, Color? cursorColor, Color? cursorErrorColor, Brightness? keyboardAppearance, EdgeInsets scrollPadding = const EdgeInsets.all(20), bool? enableInteractiveSelection, TextSelectionControls? selectionControls, InputCounterWidgetBuilder? buildCounter, ScrollPhysics? scrollPhysics, AutovalidateMode? autovalidateMode, ScrollController? scrollController, String? restorationId, MouseCursor? mouseCursor, EditableTextContextMenuBuilder? contextMenuBuilder = defaultContextMenuBuilder, TextMagnifierConfiguration? magnifierConfiguration, UndoHistoryController? undoController, AppPrivateCommandCallback? onAppPrivateCommand, bool? cursorOpacityAnimates, BoxHeightStyle selectionHeightStyle = BoxHeightStyle.tight, BoxWidthStyle selectionWidthStyle = BoxWidthStyle.tight, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ContentInsertionConfiguration? contentInsertionConfiguration, Clip clipBehavior = Clip.hardEdge, bool canRequestFocus = true, double min = 0, double max = 100000000000000, int? fractionDigits, NumberFieldArrows arrows = const NumberFieldArrows()})
Creates the field; initialValue only applies when field has no controller yet.

Properties

autovalidateMode → AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
builder → FormFieldBuilder<double?>
Function that returns the widget representing this form field.
finalinherited
controller → EditingControllerInterface<double?>
The controller that holds the text of the field.
finalinherited
enabled → bool
Whether the form is able to receive user input.
finalinherited
errorBuilder → FormFieldErrorBuilder?
Function that returns the widget representing the error to display.
finalinherited
forceErrorText → String?
An optional property that forces the FormFieldState into an error state by directly setting the FormFieldState.errorText property without running the validator function.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
initialValue → double?
An optional value to initialize the form field to, or null otherwise.
finalinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → ValueChanged<double?>?
Called with the new value after a change or a reset.
finalinherited
onReset → VoidCallback?
An optional method to call when the form field is reset via FormFieldState.reset.
finalinherited
onSaved → ValueChanged<double?>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
restorationId → String?
Restoration ID to save and restore the state of the form field.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
validator → FormFieldValidator<double?>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
finalinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → FormFieldState<double?>
Creates the mutable state for this widget at a given 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, int wrapWidth = 65}) → 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