AutocompleteHighlightedOption class Null safety

An inherited widget used to indicate which autocomplete option should be highlighted for keyboard navigation.

The RawAutoComplete widget will wrap the options view generated by the optionsViewBuilder with this widget to provide the highlighted option's index to the builder.

In the builder callback the index of the highlighted option can be obtained by using the static of method:

final highlightedIndex = AutocompleteHighlightedOption.of(context);

which can then be used to tell which option should be given a visual indication that will be the option selected with the keyboard.

Inheritance

Constructors

AutocompleteHighlightedOption({Key? key, required ValueNotifier<int> highlightIndexNotifier, required Widget child})
Create an instance of AutocompleteHighlightedOption inherited widget.
const

Properties

child → Widget
The widget below this widget in the tree.
finalinherited
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
notifier → ValueNotifier<int>?
The Listenable object to which to listen.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

createElement() → InheritedElement
Inflates this configuration to a concrete instance.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
protected">@protectedinherited
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
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
updateShouldNotify(covariant InheritedNotifier<ValueNotifier<int>> oldWidget) → bool
Whether the framework should notify widgets that inherit from this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
nonVirtual">@nonVirtualinherited

Static Methods

of(BuildContext context) → int
Returns the index of the highlighted option from the closest AutocompleteHighlightedOption ancestor.