ObstructingPreferredSizeWidget class Null safety

Widget that has a preferred size and reports whether it fully obstructs widgets behind it.

Used by CupertinoPageScaffold to either shift away fully obstructed content or provide a padding guide to partially obstructed content.

Implemented types
Implementers

Constructors

ObstructingPreferredSizeWidget()

Properties

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
preferredSize Size
The size this widget would prefer if it were otherwise unconstrained.
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createElement() Element
Inflates this configuration to a concrete instance.
@factory, @protected, 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
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
shouldFullyObstruct(BuildContext context) bool
If true, this widget fully obstructs widgets behind it by the specified size.
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

Operators

operator ==(Object other) bool
The equality operator.
inherited