SliverToBoxAdapter class Null safety

A sliver that contains a single box widget.

Slivers are special-purpose widgets that can be combined using a CustomScrollView to create custom scroll effects. A SliverToBoxAdapter is a basic sliver that creates a bridge back to one of the usual box-based widgets.

Rather than using multiple SliverToBoxAdapter widgets to display multiple box widgets in a CustomScrollView, consider using SliverList, SliverFixedExtentList, SliverPrototypeExtentList, or SliverGrid, which are more efficient because they instantiate only those children that are actually visible through the scroll view's viewport.

See also:

  • CustomScrollView, which displays a scrollable list of slivers.
  • SliverList, which displays multiple box widgets in a linear array.
  • SliverFixedExtentList, which displays multiple box widgets with the same main-axis extent in a linear array.
  • SliverPrototypeExtentList, which displays multiple box widgets with the same main-axis extent as a prototype item, in a linear array.
  • SliverGrid, which displays multiple box widgets in arbitrary positions.
Inheritance

Constructors

SliverToBoxAdapter({Key? key, Widget? child})
Creates a sliver that contains a single box widget.
const

Properties

child → Widget?
The widget below this widget in the tree.
finalinherited
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

createElement() → SingleChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → RenderSliverToBoxAdapter
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
didUnmountRenderObject(covariant RenderObject renderObject) → void
A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.
protected">@protectedinherited
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
updateRenderObject(BuildContext context, covariant RenderObject renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.
protected">@protectedinherited

Operators

operator ==(Object other) → bool
The equality operator.
nonVirtual">@nonVirtualinherited