OverscrollNotification class Null safety

A notification that a Scrollable widget has not changed its scroll position because the change would have caused its scroll position to go outside of its scroll bounds.

See also:

Inheritance

Constructors

OverscrollNotification({required ScrollMetrics metrics, required BuildContext context, DragUpdateDetails? dragDetails, required double overscroll, double velocity})
Creates a notification that a Scrollable widget has changed its scroll position outside of its scroll bounds.

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
dragDetails DragUpdateDetails?
If the Scrollable overscrolled because of a drag, the details about that drag update. [...]
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
overscroll double
The number of logical pixels that the Scrollable avoided scrolling. [...]
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
velocity double
The velocity at which the ScrollPosition was changing when this overscroll happened. [...]
final

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