BoxScrollView class Null safety

A ScrollView that uses a single child layout model.

See also:



BoxScrollView({Key? key, Axis scrollDirection = Axis.vertical, bool reverse = false, ScrollController? controller, bool? primary, ScrollPhysics? physics, bool shrinkWrap = false, EdgeInsetsGeometry? padding, double? cacheExtent, int? semanticChildCount, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollViewKeyboardDismissBehavior keyboardDismissBehavior = ScrollViewKeyboardDismissBehavior.manual, String? restorationId, Clip clipBehavior = Clip.hardEdge})
Creates a ScrollView uses a single child layout model.


anchor double
The relative position of the zero scroll offset.
final, inherited
cacheExtent double?
The viewport has an area before and after the visible area to cache items that are about to become visible when the user scrolls.
final, inherited
center Key?
The first child in the GrowthDirection.forward growth direction.
final, inherited
clipBehavior Clip
The content will be clipped (or not) according to this option.
final, inherited
controller ScrollController?
An object that can be used to control the position to which this scroll view is scrolled.
final, inherited
dragStartBehavior DragStartBehavior
Determines the way that drag start behavior is handled.
final, inherited
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
keyboardDismissBehavior ScrollViewKeyboardDismissBehavior
ScrollViewKeyboardDismissBehavior the defines how this ScrollView will dismiss the keyboard automatically.
final, inherited
padding EdgeInsetsGeometry?
The amount of space by which to inset the children.
physics ScrollPhysics?
How the scroll view should respond to user input.
final, inherited
primary bool?
Whether this is the primary scroll view associated with the parent PrimaryScrollController.
final, inherited
restorationId String?
Restoration ID to save and restore the scroll offset of the scrollable.
final, inherited
reverse bool
Whether the scroll view scrolls in the reading direction.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
scrollBehavior ScrollBehavior?
A ScrollBehavior that will be applied to this widget individually.
final, inherited
scrollDirection Axis
The axis along which the scroll view scrolls.
final, inherited
semanticChildCount int?
The number of children that will contribute semantic information.
final, inherited
shrinkWrap bool
Whether the extent of the scroll view in the scrollDirection should be determined by the contents being viewed.
final, inherited


build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
buildChildLayout(BuildContext context) Widget
Subclasses should override this method to build the layout model.
buildSlivers(BuildContext context) List<Widget>
Build the list of widgets to place inside the viewport.
buildViewport(BuildContext context, ViewportOffset offset, AxisDirection axisDirection, List<Widget> slivers) Widget
Build the viewport.
@protected, inherited
createElement() StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
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.
getDirection(BuildContext context) AxisDirection
Returns the AxisDirection in which the scroll view scrolls.
@protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
toString({DiagnosticLevel minLevel =}) String
A string representation of this object.
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
toStringShort() String
A short, textual description of this widget.


operator ==(Object other) bool
The equality operator.
@nonVirtual, inherited