SyncScrollController class

The SyncScrollController to sync pixels for all of positions

Inheritance
Mixed in types

Constructors

SyncScrollController({double initialScrollOffset = 0.0, bool keepScrollOffset = true, String? debugLabel, SyncControllerMixin? parent})
Creates a scroll controller that continually updates its initialScrollOffset to match the last scroll notification it received.

Properties

debugLabel → String?
A label that is used in the toString output. Intended to aid with identifying scroll controller instances in debug output.
finalinherited
extentAfter → double
no setterinherited
extentBefore → double
no setterinherited
hasClients → bool
Whether any ScrollPosition objects have attached themselves to the ScrollController using the attach method.
no setterinherited
hasDrag → bool
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
hasHold → bool
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
initialScrollOffset → double
The initial value to use for offset.
no setterinherited
isSelf → bool
no setterinherited
keepScrollOffset → bool
Each time a scroll completes, save the current scroll offset with PageStorage and restore it if this controller's scrollable is recreated.
finalinherited
offset → double
The current scroll offset of the scrollable widget.
no setterinherited
onAttach → ScrollControllerCallback?
Called when a ScrollPosition is attached to the scroll controller.
finalinherited
onDetach → ScrollControllerCallback?
Called when a ScrollPosition is detached from the scroll controller.
finalinherited
parent → SyncControllerMixin?
The Outer SyncScrollController, for example ExtendedTabBarView or ExtendedPageView It make better experience when scroll on horizontal direction
final
parentIsNotNull → bool
no setterinherited
position → ScrollPosition
Returns the attached ScrollPosition, from which the actual scroll offset of the ScrollView can be obtained.
no setterinherited
positions → Iterable<ScrollPosition>
The currently attached positions.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
animateTo(double offset, {required Duration duration, required Curve curve}) → Future<void>
Animates the position from its current value to the given value.
inherited
attach(ScrollPosition position) → void
Register the given position with this controller.
inherited
createScrollPosition(ScrollPhysics physics, ScrollContext context, ScrollPosition? oldPosition) → ScrollPosition
Creates a ScrollPosition for use by a Scrollable widget.
inherited
debugFillDescription(List<String> description) → void
Add additional information to the given description for use by toString.
inherited
detach(ScrollPosition position) → void
Unregister the given position with this controller.
inherited
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
forceCancel() → void
inherited
handleDragCancel() → void
inherited
handleDragDown(DragDownDetails? details) → void
inherited
handleDragEnd(DragEndDetails details) → void
inherited
handleDragStart(DragStartDetails details) → void
inherited
handleDragUpdate(DragUpdateDetails details) → void
inherited
jumpTo(double value) → void
Jumps the scroll position from its current value to the given value, without animation, and without checking if the new value is in range.
inherited
linkActivedParent(double delta, DragUpdateDetails details, TextDirection textDirection) → void
inherited
linkParent<S extends StatefulWidget, T extends SyncScrollStateMinxin<S>>(BuildContext context) → void
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toString() → String
A string representation of this object.
inherited
unlinkParent() → void
inherited

Operators

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