ScrollbarTheme class Null safety

Applies a scrollbar theme to descendant Scrollbar widgets.

Descendant widgets obtain the current theme's ScrollbarThemeData using ScrollbarTheme.of. When a widget uses ScrollbarTheme.of, it is automatically rebuilt if the theme later changes.

A scrollbar theme can be specified as part of the overall Material theme using ThemeData.scrollbarTheme.

See also:

Inheritance

Constructors

ScrollbarTheme({Key? key, required ScrollbarThemeData data, required Widget child})
Constructs a scrollbar theme that configures all descendant Scrollbar widgets.
const

Properties

child Widget
The widget below this widget in the tree.
final, inherited
data ScrollbarThemeData
The properties used for all descendant Scrollbar widgets.
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

createElement() InheritedElement
Inflates this configuration to a concrete instance.
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
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
updateShouldNotify(covariant ScrollbarTheme oldWidget) bool
Whether the framework should notify widgets that inherit from this widget.
override

Operators

operator ==(Object other) bool
The equality operator.
@nonVirtual, inherited

Static Methods

of(BuildContext context) ScrollbarThemeData
Returns the configuration data from the closest ScrollbarTheme ancestor. If there is no ancestor, it returns ThemeData.scrollbarTheme.