Autocomplete<T extends Object> class
Null safety
A widget for helping the user make a selection by entering some text and choosing from among a list of options.
The user's text input is received in a field built with the fieldViewBuilder parameter. The options to be displayed are determined using optionsBuilder and rendered with optionsViewBuilder.
This example shows how to create a very basic Autocomplete widget using the
default UI.
To create a local project with this code sample, run:
flutter create --sample=material.Autocomplete.1 mysample
flutter create --sample=material.Autocomplete.1 mysample
This example shows how to create an Autocomplete widget with a custom type.
Try searching with text from the name or email field.
To create a local project with this code sample, run:
flutter create --sample=material.Autocomplete.2 mysample
flutter create --sample=material.Autocomplete.2 mysample
See also:
- RawAutocomplete, which is what Autocomplete is built upon, and which contains more detailed examples.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- Autocomplete
Constructors
-
Autocomplete({Key? key, required AutocompleteOptionsBuilder<
T> optionsBuilder, AutocompleteOptionToString<T> displayStringForOption = RawAutocomplete.defaultStringForOption, AutocompleteFieldViewBuilder fieldViewBuilder = _defaultFieldViewBuilder, AutocompleteOnSelected<T> ? onSelected, double optionsMaxHeight = 200.0, AutocompleteOptionsViewBuilder<T> ? optionsViewBuilder, TextEditingValue? initialValue}) -
Creates an instance of Autocomplete.
const
Properties
-
displayStringForOption
→ AutocompleteOptionToString<
T> -
Returns the string to display in the field when the option is selected.
final
- fieldViewBuilder → AutocompleteFieldViewBuilder
-
Builds the field whose input is used to get the options.
final
- hashCode → int
- The hash code for this object.
- initialValue → TextEditingValue?
-
The initial value to use for the text field.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onSelected
→ AutocompleteOnSelected<
T> ? -
Called when an option is selected by the user.
final
-
optionsBuilder
→ AutocompleteOptionsBuilder<
T> -
A function that returns the current selectable options objects given the
current TextEditingValue.
final
- optionsMaxHeight → double
-
The maximum height used for the default Material options list widget.
final
-
optionsViewBuilder
→ AutocompleteOptionsViewBuilder<
T> ? -
Builds the selectable options widgets from a list of options objects.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
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.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
Operators
-
operator ==(
Object other) → bool -
The equality operator.
nonVirtual">@nonVirtualinherited