OudsRadioButton<T> class
OUDS Radio Button Design Guidelines
An OUDS radio button widget.
This widget displays a radio button that is part of a group. It determines its selected state by comparing its own value with the current groupValue. It also supports an error state and notifies changes through onChanged.
Parameters:
value The value represented by this radio button. Used to determine selection.
groupValue The currently selected value in the radio button group.
This radio button is considered selected if value == groupValue.
onChanged Callback triggered when the user selects this radio button.
If null
, the radio button is disabled and non-interactive.
isError Indicates whether the radio button is in an error state.
You can use OudsRadioButton like this :
Selection status
Typically, a radio button has two main states: Selected and Unselected.
'selected' : The radio button is actively chosen by the user, indicating the associated option is selected. 'unselected' : The radio button is not chosen, showing the user that the associated option is available but not selected.
OudsRadioButton<RadioOption>(
value: true,
groupValue: true,
onChanged: (RadioOption? value) {
// Handle radio button change state.
}
isError: false,
);
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- OudsRadioButton
Constructors
-
OudsRadioButton.new({Key? key, required T value, required T groupValue, required ValueChanged<
T?> ? onChanged, bool isError = false}) -
const
Properties
- groupValue → T
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- isError → bool
-
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onChanged
→ ValueChanged<
T?> ? -
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value → T
-
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → OudsRadioButtonState< T> -
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