ListBody class

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.new({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.
const

Properties

children → List<Widget>
The widgets below this widget in the tree.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
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.
no setterinherited

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.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
didUnmountRenderObject(covariant RenderObject renderObject) → void
This method is called when a RenderObject that was previously associated with this widget is removed from the render tree. The provided RenderObject will be of the same type as the one created by this widget's createRenderObject method.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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, int wrapWidth = 65}) → 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.
inherited