FormBuilderSlider class

Field for selection of a numerical value on a slider

Inheritance

Constructors

FormBuilderSlider({Key? key, required String name, FormFieldValidator<double>? validator, required double initialValue, InputDecoration decoration = const InputDecoration(), ValueChanged<double?>? onChanged, ValueTransformer<double?>? valueTransformer, bool enabled = true, FormFieldSetter<double>? onSaved, AutovalidateMode? autovalidateMode = AutovalidateMode.disabled, VoidCallback? onReset, FocusNode? focusNode, String? restorationId, required double min, required double max, int? divisions, Color? activeColor, Color? inactiveColor, ValueChanged<double>? onChangeStart, ValueChanged<double>? onChangeEnd, String? label, SemanticFormatterCallback? semanticFormatterCallback, NumberFormat? numberFormat, DisplayValues displayValues = DisplayValues.all, bool autofocus = false, MouseCursor? mouseCursor, Widget maxValueWidget(String max)?, Widget minValueWidget(String min)?, Widget valueWidget(String value)?})
Creates field for selection of a numerical value on a slider

Properties

activeColor → Color?
The color to use for the portion of the slider track that is active.
final
autofocus → bool
True if this widget will be selected as the initial focus when no other node in its scope is currently focused.
final
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. It is passed the form field state as input, containing the current value and validation state of this field.
finalinherited
decoration → InputDecoration
finalinherited
displayValues → DisplayValues
final
divisions → int?
The number of discrete divisions.
final
enabled → bool
Whether the form is able to receive user input.
finalinherited
focusNode → FocusNode?
An optional focus node to use as the focus node for this widget.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
inactiveColor → Color?
The color for the inactive portion of the slider track.
final
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
label → String?
A label to show above the slider when the slider is active.
final
max → double
The maximum value the user can select.
final
maxValueWidget → (Widget Function(String max)?)
An alternative to displaying the text value of the slider.
final
min → double
The minimum value the user can select.
final
minValueWidget → (Widget Function(String min)?)
An alternative to displaying the text value of the slider.
final
mouseCursor → MouseCursor?
The cursor for a mouse pointer when it enters or is hovering over the widget.
final
name → String
Used to reference the field within the form, or to reference form data after the form is submitted.
finalinherited
numberFormat → NumberFormat?
Provides the ability to format a number in a locale-specific way.
final
onChanged → ValueChanged<double?>?
Called when the field value is changed.
finalinherited
onChangeEnd → ValueChanged<double>?
Called when the user is done selecting a new value for the slider.
final
onChangeStart → ValueChanged<double>?
Called when the user starts selecting a new value for the slider.
final
onReset → VoidCallback?
Called when the field value is reset.
finalinherited
onSaved → FormFieldSetter<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
semanticFormatterCallback → SemanticFormatterCallback?
The callback used to create a semantic value from a slider value.
final
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
valueTransformer → ValueTransformer<double?>?
Called just before field value is saved. Used to massage data just before committing the value.
finalinherited
valueWidget → (Widget Function(String value)?)
An alternative to displaying the text value of the slider.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → FormBuilderFieldDecorationState<FormBuilderSlider, double>
Creates the mutable state for this widget at a given location in the tree.
override
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