BoxScrollView class Null safety
A ScrollView that uses a single child layout model.
See also:
- ListView, which is a BoxScrollView that uses a linear layout model.
- GridView, which is a BoxScrollView that uses a 2D layout model.
- CustomScrollView, which can combine multiple child layout models into a single scroll view.
- Inheritance
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- ScrollView
- BoxScrollView
- Implementers
Constructors
- 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. [...]
const
Properties
- 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.
final
- 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
- 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
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget. [...]
inherited
-
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. [...]
override
-
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. [...]
inherited
-
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. [...]
override
-
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. [...]
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep. [...]
inherited
-
toString(
{DiagnosticLevel minLevel: DiagnosticLevel.info}) → String -
A string representation of this object. [...]
inherited
-
toStringDeep(
{String prefixLineOne: '', String? prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants. [...]
inherited
-
toStringShallow(
{String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object. [...]
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator. [...]
@nonVirtual, inherited