FormBuilderSlider class
Field for selection of a numerical value on a slider
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- FormField<
double> - FormBuilderField<
double> - FormBuilderSlider
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, 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, TextStyle? minTextStyle, TextStyle? textStyle, TextStyle? maxTextStyle, bool autofocus = false, MouseCursor? mouseCursor, bool shouldRequestFocus = false}) - 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
-
The border, labels, icons, and styles used to decorate the field.
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
- maxTextStyle → TextStyle?
-
final
- min → double
-
The minimum value the user can select.
final
- minTextStyle → TextStyle?
-
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?
-
TODO: Add documentation
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
- shouldRequestFocus → bool
-
final
- textStyle → TextStyle?
-
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
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → FormBuilderFieldState< 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