VsScrollbar class

To add a VsScrollbar to a ScrollView, wrap the scroll view widget in a VsScrollbar widget.

The color of the VsScrollbar will change when dragged. A hover animation is also triggered when used on web and desktop platforms. A VsScrollbar track can also been drawn when triggered by a hover event, which is controlled by showTrackOnHover. The thickness of the track and VsScrollbar thumb will become larger when hovering, unless overridden by hoverThickness.

See also:

• RawScrollbar, a basic VsScrollbar that fades in and out, extended by this class to add more animations and behaviors.
• ScrollbarTheme, which configures the VsScrollbar's appearance.
• ListView, which displays a linear, scrollable list of children.
• GridView, which displays a 2 dimensional, scrollable array of children.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• VsScrollbar

Constructors

VsScrollbar({Key? key, required Widget child, ScrollController? controller, VsScrollbarStyle style = _kScrollbarStyle, Duration? scrollbarFadeDuration, Duration? scrollbarTimeToFade, bool? isAlwaysShown, bool? showTrackOnHover, ScrollNotificationPredicate? notificationPredicate})

Creates a material design VsScrollbar that by default will connect to the closest Scrollable descendant of child.

const

Properties

child → Widget

final

controller → ScrollController?

final

hashCode → int

The hash code for this object.

no setter, inherited

isAlwaysShown → bool?

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

notificationPredicate → ScrollNotificationPredicate?

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scrollbarFadeDuration → Duration?

default 300ms

final

scrollbarTimeToFade → Duration?

default 600ms

final

showTrackOnHover → bool?

If this property is null, then ScrollbarThemeData.showTrackOnHover of ThemeData.scrollbarTheme is used. If that is also null, the default value is false.

final

style → VsScrollbarStyle

Style Property for VsScrollbar

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → _ScrollbarState

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