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, 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
height double
final
initialIndex int
final
items List<Widget>
final
length int
final
onScrollStarted VoidCallback
final
onSelectedIndexChanged ValueChanged<int>
final
visibilityRadius double
final
width double
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createState() State<StatefulWidget>
Creates the mutable state for this widget at a given location in the tree. [...]
override
createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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
Returns 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. [...]
@nonVirtual, inherited