RollerList class

Inheritance

Constructors

RollerList({List<Widget>? items, IndexedWidgetBuilder? builder, int? length, ValueChanged<int>? onSelectedIndexChanged, int? initialIndex, double visibilityRadius = 1.0, double? width, double? height, Color dividerColor = Colors.black, double dividerThickness = 1.0, bool enabled = true, ScrollType scrollType = ScrollType.bothDirections, Key? key, VoidCallback? onScrollStarted})
You should provide either items list or builder function and length. Priority is given to builder function. It is better to provide width and height. If these parameters are omitted, widget will try to calculate based on the initialIndex item size, but if one parameter is set it would not be overwritten. visibilityRadius means how many widgets are visible on each side of the selected widget. key can be used to set selected item programmatically via Global key. If enabled, user can scroll it, otherwise scrolling can be done only programmatically. onSelectedIndexChanged is called when scrolling is finished. builder function will get index with infinity range, so to get roller scroll effect it is required to use index %
const

Properties

builder IndexedWidgetBuilder?
final
dividerColor Color
final
dividerThickness double
final
enabled bool
final
hashCode int
The hash code for this object.
no setterinherited
height double?
final
initialIndex int?
final
items List<Widget>?
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
length int?
final
onScrollStarted VoidCallback?
final
onSelectedIndexChanged ValueChanged<int>?
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
scrollType ScrollType
final
visibilityRadius double
final
width double?
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}) 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