SliverList class

A sliver that places multiple box children in a linear array along the main axis.

Each child is forced to have the SliverConstraints.crossAxisExtent in the cross axis but determines its own main axis extent.

SliverList determines its scroll offset by "dead reckoning" because children outside the visible part of the sliver are not materialized, which means SliverList cannot learn their main axis extent. Instead, newly materialized children are placed adjacent to existing children.

If the children have a fixed extent in the main axis, consider using SliverFixedExtentList rather than SliverList because SliverFixedExtentList does not need to perform layout on its children to obtain their extent in the main axis and is therefore more efficient.

See also:



SliverList({Key key, @required SliverChildDelegate delegate })
Creates a sliver that places box children in a linear array.


delegate SliverChildDelegate
The delegate that provides the children for this widget. [...]
final, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited


createRenderObject(BuildContext context) RenderSliverList
createElement() SliverMultiBoxAdaptorElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder description) → void
didUnmountRenderObject(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, inherited
estimateMaxScrollOffset(SliverConstraints constraints, int firstIndex, int lastIndex, double leadingScrollOffset, double trailingScrollOffset) double
Returns an estimate of the max scroll extent for all the children. [...]
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 toStringDeep. [...]
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns 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.
updateRenderObject(BuildContext context, 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, inherited


operator ==(other) bool
The equality operator. [...]