RadioField class

Field with multiple choices, presented in a row. It is a part of many standard fields: combo, radio, checkbox.

Inheritance

Constructors

RadioField({required List<String> options, List<String>? labels, List<Widget>? widgetLabels, String? value, List<String>? values, bool wrap = false, bool multi = false, bool keepFirst = false, bool keepOrder = false, dynamic onChange(String?)?, dynamic onMultiChange(List<String>)?})
Creates a widget. Only options are technically required, but you should also specify either of value or values, and a callback function between onChange and onMultiChange.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
keepFirst → bool
Keep the first options before all others. Use only for a fake first option, e.g. that launches a dialog. Warning: this implies the first option can never be a value.
final
keepOrder → bool
Whether to keep the order of options. If not set, and the options do not fit on the screen, when tapping one, it is moved to the front. This might be unwelcome, for example, with numeric options.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labels → List<String>?
Labels for options. If preset, they replace values in presentation.
final
multi → bool
Whether to allow multi-selection.
final
onChange → dynamic Function(String?)?
A callback function for when the value (singular) changes. If multiple values can be chosen, they will be joined with a semicolon.
final
onMultiChange → dynamic Function(List<String>)?
A callback function for multiple changed values, if enabled.
final
options → List<String>
Which options — meaning tag values — are available.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value → String?
The currently present tag value. Can be empty of course. Can also contain several values joined by a semicolon ("yes;no").
final
values → List<String>?
Instead of value, specify this when the field expects multiple values. See multi.
final
widgetLabels → List<Widget>?
Widget labels: for example, images. Has preference over labels. Basically the latter are wrapped in Text and merged into a single list.
final
wrap → bool
If set, the field will wrap at the edge of the screen. Otherwise it will be horizontally scrollable.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>
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, 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