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.
Inheritance

Constructors

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

Properties

mainAxis → Axis
The direction to use as the main axis.
final
reverse → bool
Whether the list body positions children in the reading direction. [...]
final
children → List<Widget>
The widgets below this widget in the tree. [...]
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

Methods

createRenderObject(BuildContext context) → RenderListBody
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget. [...]
override
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
createElement() → MultiChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
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. [...]
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, 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 toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String
Returns 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 ==(dynamic other) → bool
The equality operator. [...]
inherited