ScrollContext class Null safety

An interface that Scrollable widgets implement in order to use ScrollPosition.

See also:

  • ScrollableState, which is the most common implementation of this interface.
  • ScrollPosition, which uses this interface to communicate with the scrollable widget.
Implementers

Constructors

ScrollContext()

Properties

axisDirection → AxisDirection
The direction in which the widget scrolls.
read-only
hashCode → int
The hash code for this object.
read-onlyinherited
notificationContext → BuildContext?
The BuildContext that should be used when dispatching ScrollNotifications.
read-only
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
storageContext → BuildContext
The BuildContext that should be used when searching for a PageStorage.
read-only
vsync → TickerProvider
A TickerProvider to use when animating the scroll position.
read-only

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
saveOffset(double offset) → void
Called by the ScrollPosition whenever scrolling ends to persist the provided scroll offset for state restoration purposes.
setCanDrag(bool value) → void
Whether the user can drag the widget, for example to initiate a scroll.
setIgnorePointer(bool value) → void
Whether the contents of the widget should ignore PointerEvent inputs.
setSemanticsActions(Set<SemanticsAction> actions) → void
Set the SemanticsActions that should be expose to the semantics tree.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited