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:
- ScrollbarThemeData, which describes the configuration of a scrollbar theme.
- Inheritance
- Object
- DiagnosticableTree
- Widget
- ProxyWidget
- InheritedWidget
- ScrollbarTheme
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. [...]