UserScrollNotification class Null safety

A notification that the user has changed the direction in which they are scrolling.

See also:

Inheritance

Constructors

UserScrollNotification({required ScrollMetrics metrics, required BuildContext context, required ScrollDirection direction})
Creates a notification that the user has changed the direction in which they are scrolling.

Properties

context BuildContext?
The build context of the widget that fired this notification. [...]
final, inherited
depth int
The number of viewports that this notification has bubbled through. [...]
read-only, inherited
direction ScrollDirection
The direction in which the user is scrolling.
final
hashCode int
The hash code for this object. [...]
read-only, inherited
metrics ScrollMetrics
A description of a Scrollable's contents, useful for modeling the state of its viewport.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

debugFillDescription(List<String> description) → void
Add additional information to the given description for use by toString. [...]
override
dispatch(BuildContext? target) → void
Start bubbling this notification at the given build context. [...]
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
toString() String
A string representation of this object. [...]
inherited
visitAncestor(Element element) bool
Applied to each ancestor of the dispatch target. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited