SliverM3ECardList class

A Material 3 interactive card list for use in CustomScrollViews.

SliverM3ECardList renders a vertical list of items, where the first and last items automatically have a larger outer radius, and the inner items have a smaller inner radius, adhering to Material 3's expressive list design.

Use this variant when you need to embed the list alongside other slivers in a CustomScrollView.

Inheritance

Constructors

SliverM3ECardList({Key? key, required int itemCount, required IndexedWidgetBuilder itemBuilder, double outerRadius = 24.0, double innerRadius = 4.0, double gap = 3.0, Color? color, EdgeInsetsGeometry? padding, EdgeInsetsGeometry? margin, void onTap(int index)?, void onLongPress(int index)?, String semanticLabelBuilder(int index)?, MouseCursor? mouseCursor, Color? focusColor, Color? hoverColor, void onFocusChange(int index, bool)?, BorderSide? border, double elevation = 0, Color? splashColor, Color? highlightColor, InteractiveInkFeatureFactory? splashFactory, bool enableFeedback = true, M3EHapticFeedback haptic = M3EHapticFeedback.none, Widget? emptyBuilder, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true})
Creates a SliverM3ECardList.
const

Properties

addAutomaticKeepAlives → bool
Whether to wrap each child in an AutomaticKeepAlive.
final
addRepaintBoundaries → bool
Whether to wrap each child in a RepaintBoundary.
final
addSemanticIndexes → bool
Whether to wrap each child in an IndexedSemantics.
final
border → BorderSide?
The border drawn around each card item.
final
color → Color?
The background color for each card.
final
elevation → double
The elevation of the card.
final
emptyBuilder → Widget?
Widget displayed when the list is empty (itemCount is 0).
final
enableFeedback → bool
Whether detected gestures should provide acoustic and/or haptic feedback.
final
focusColor → Color?
The color to use when a card is focused by keyboard navigation.
final
gap → double
The gap space between adjacent items.
final
haptic → M3EHapticFeedback
The haptic feedback to provide on tap.
final
hashCode → int
The hash code for this object.
no setterinherited
highlightColor → Color?
The highlight color of the ink response when tapped.
final
hoverColor → Color?
The color to use when a card is hovered by a mouse pointer.
final
innerRadius → double
The radius used for the inner corners of adjoining items.
final
itemBuilder → IndexedWidgetBuilder
Signature for a function that creates a widget for a given index.
final
itemCount → int
The number of items in the list.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
margin → EdgeInsetsGeometry?
The outer margin applied around the entire list of cards.
final
mouseCursor → MouseCursor?
The cursor for a mouse pointer when it enters a card's bounds.
final
onFocusChange → void Function(int index, bool)?
Called when the focus state of a card changes.
final
onLongPress → void Function(int index)?
Optional callback invoked when an item is long-pressed.
final
onTap → void Function(int index)?
Optional callback invoked when an item is tapped.
final
outerRadius → double
The radius used for the top corners of the first item, the bottom corners of the last item, and all corners of a single item.
final
padding → EdgeInsetsGeometry?
The inner padding applied to the itemBuilder child of each item.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semanticLabelBuilder → String Function(int index)?
Optional semantic label builder for accessibility.
final
splashColor → Color?
The splash color of the ink response when tapped.
final
splashFactory → InteractiveInkFeatureFactory?
Defines the appearance of the splash.
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