PerfectRawAutocomplete<T extends Object> class
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 is a core framework widget with very basic UI.
{@tool dartpad} This example shows how to create a very basic autocomplete widget using the fieldViewBuilder and optionsViewBuilder parameters.
** See code in examples/api/lib/widgets/autocomplete/raw_autocomplete.0.dart ** {@end-tool}
The type parameter T represents the type of the options. Most commonly this
is a String, as in the example above. However, it's also possible to use
another type with a toString
method, or a custom displayStringForOption.
Options will be compared using ==
, so it may be beneficial to override
Object.== and Object.hashCode for custom types.
{@tool dartpad} This example is similar to the previous example, but it uses a custom T data type instead of directly using String.
** See code in examples/api/lib/widgets/autocomplete/raw_autocomplete.1.dart ** {@end-tool}
{@tool dartpad} This example shows the use of RawAutocomplete in a form.
** See code in examples/api/lib/widgets/autocomplete/raw_autocomplete.2.dart ** {@end-tool}
See also:
- Autocomplete, which is a Material-styled implementation that is based on RawAutocomplete.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- PerfectRawAutocomplete
- Annotations
Constructors
-
PerfectRawAutocomplete({Key? key, required bool showOnTop, required PerfectAutocompleteOptionsViewBuilder<
T> optionsViewBuilder, required PerfectAutocompleteOptionsBuilder<T> optionsBuilder, PerfectAutocompleteOptionToString<T> displayStringForOption = defaultStringForOption, PerfectAutocompleteFieldViewBuilder? fieldViewBuilder, PerfectAutocompleteOnSelected<T> ? onSelected, PerfectTextController? textController}) -
Create an instance of RawAutocomplete.
const
Properties
-
displayStringForOption
→ PerfectAutocompleteOptionToString<
T> -
Returns the string to display in the field when the option is selected.
final
- fieldViewBuilder → PerfectAutocompleteFieldViewBuilder?
-
Builds the field whose input is used to get the options.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
onSelected
→ PerfectAutocompleteOnSelected<
T> ? -
Called when an option is selected by the user.
final
-
optionsBuilder
→ PerfectAutocompleteOptionsBuilder<
T> -
A function that returns the current selectable options objects given the
current TextEditingValue.
final
-
optionsViewBuilder
→ PerfectAutocompleteOptionsViewBuilder<
T> -
Builds the selectable options widgets from a list of options objects.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- showOnTop → bool
-
final
- textController → PerfectTextController?
-
The PerfectTextController that is used for the text field.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< PerfectRawAutocomplete< T> > -
Creates the mutable state for this widget at a given location in the tree.
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.
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, int wrapWidth = 65}) → 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
Static Methods
-
defaultStringForOption(
Object? option) → String - The default way to convert an option to a string in displayStringForOption.
-
onFieldSubmitted<
T extends Object> (GlobalKey< State< key) → voidStatefulWidget> > - Calls PerfectAutocompleteFieldViewBuilder's onFieldSubmitted callback for the RawAutocomplete widget indicated by the given GlobalKey.