OverflowBox class

A widget that imposes different constraints on its child than it gets from its parent, possibly allowing the child to overflow the parent.

This example shows how an OverflowBox is used, and what its effect is.
link

To create a local project with this code sample, run:
flutter create --sample=widgets.OverflowBox.1 mysample

See also:

Inheritance

Constructors

OverflowBox({Key? key, AlignmentGeometry alignment = Alignment.center, double? minWidth, double? maxWidth, double? minHeight, double? maxHeight, OverflowBoxFit fit = OverflowBoxFit.max, Widget? child})
Creates a widget that lets its child overflow itself.
const

Properties

alignment → AlignmentGeometry
How to align the child.
final
child → Widget?
The widget below this widget in the tree.
finalinherited
fit → OverflowBoxFit
The way to size the render object.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxHeight → double?
The maximum height constraint to give the child. Set this to null (the default) to use the constraint from the parent instead.
final
maxWidth → double?
The maximum width constraint to give the child. Set this to null (the default) to use the constraint from the parent instead.
final
minHeight → double?
The minimum height constraint to give the child. Set this to null (the default) to use the constraint from the parent instead.
final
minWidth → double?
The minimum width constraint to give the child. Set this to null (the default) to use the constraint from the parent instead.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createElement() → SingleChildRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) → RenderConstrainedOverflowBox
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.
override
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.
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}) → 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 RenderConstrainedOverflowBox 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