ListBody class Null safety

A widget that arranges its children sequentially along a given axis, forcing them to the dimension of the parent in the other axis.

This widget is rarely used directly. Instead, consider using ListView, which combines a similar layout algorithm with scrolling behavior, or Column, which gives you more flexible control over the layout of a vertical set of boxes.

See also:

  • RenderListBody, which implements this layout algorithm and the documentation for which describes some of its subtleties.
  • SingleChildScrollView, which is sometimes used with ListBody to make the contents scrollable.
  • Column and Row, which implement a more elaborate version of this layout algorithm (at the cost of being slightly less efficient).
  • ListView, which implements an efficient scrolling version of this layout algorithm.
  • The catalog of layout widgets.
Inheritance

Constructors

ListBody({Key? key, Axis mainAxis = Axis.vertical, bool reverse = false, List<Widget> children = const <Widget>[]})
Creates a layout widget that arranges its children sequentially along a given axis.

Properties

children → List<Widget>
The widgets 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
mainAxis → Axis
The direction to use as the main axis.
final
reverse → bool
Whether the list body positions children in the reading direction.
final
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

createElement() → MultiChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → RenderListBody
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 RenderListBody 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.
override

Operators

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