PrismSegmentedControl<T> class

A single-choice segmented control that stays usable on a phone.

Flutter's SegmentedButton is excellent until the labels do not fit, at which point it overflows. This adapts instead: on a narrow window it becomes a scrollable row so every option stays reachable, and it always exposes the selection as a radio group to assistive tech.

PrismSegmentedControl<ExerciseMode>(
  value: mode,
  onChanged: (next) => setState(() => mode = next),
  segments: const [
    PrismSegment(value: ExerciseMode.office, label: 'Office'),
    PrismSegment(value: ExerciseMode.home, label: 'Home', icon: Icons.home),
  ],
)
Inheritance

Constructors

PrismSegmentedControl({Key? key, required T value, required List<PrismSegment<T>> segments, required ValueChanged<T>? onChanged, double? scrollThreshold, String? semanticLabel, bool showCheckmark = true})
Creates a segmented control.
const

Properties

hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → ValueChanged<T>?
Called with the newly selected value. Null makes the control read-only.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollThreshold → double?
Width below which the control scrolls instead of compressing. Defaults to PrismTokens.breakpointCompact.
final
segments → List<PrismSegment<T>>
The available options. Must not be empty.
final
semanticLabel → String?
Accessible name for the group.
final
showCheckmark → bool
Whether the selected segment shows a checkmark.
final
value → T
The currently selected value.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's 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