A widget that paints a Decoration either before or after its child paints.

Container insets its child by the widths of the borders; this widget does not.

Commonly used with BoxDecoration.

Sample code

This sample shows a radial gradient that draws a moon on a night sky:

new DecoratedBox(
  decoration: new BoxDecoration(
    gradient: new RadialGradient(
      center: const FractionalOffset(0.25, 0.3),
      radius: 0.15,
      colors: <Color>[
        const Color(0xFFEEEEEE),
        const Color(0xFF111133),
      stops: <double>[0.9, 1.0],

See also:



DecoratedBox({Key key, @required Decoration decoration, DecorationPosition position: DecorationPosition.background, Widget child })
Creates a widget that paints a Decoration. [...]


decoration Decoration
What decoration to paint. [...]
position DecorationPosition
Whether to paint the box decoration behind or in front of the child.
child Widget
The widget 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


createRenderObject(BuildContext context) RenderDecoratedBox
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget. [...]
debugFillProperties(DiagnosticPropertiesBuilder description) → void
updateRenderObject(BuildContext context, RenderDecoratedBox 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. [...]
createElement() SingleChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
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
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() String
Returns a string representation of this object.
toStringDeep([String prefixLineOne = '', String prefixOtherLines ]) String
Returns a string representation of this node and its descendants. [...]
toStringShallow([String joiner = ', ' ]) String
Returns a one-line detailed description of the object. [...]
toStringShort() String
A short, textual description of this widget.


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