AnchoredOverlay class

Displays an overlay Widget anchored directly above the center of this AnchoredOverlay.

The overlay Widget is created by invoking the provided overlayBuilder.

The anchor position is provided to the overlayBuilder, but the builder does not have to respect it. In other words, the overlayBuilder can interpret the meaning of "anchor" however it wants - the overlay will not be forced to be centered about the anchor.

The overlay built by this AnchoredOverlay can be conditionally shown and hidden by settings the showOverlay property to true or false.

The overlayBuilder is invoked every time this Widget is rebuilt.

Inheritance

Constructors

AnchoredOverlay({Key? key, bool showOverlay = false, OverlayBuilderCallback? overlayBuilder, Widget? child})
const

Properties

child → Widget?
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
overlayBuilder → OverlayBuilderCallback?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
showOverlay → bool
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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
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

Operators

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