SelectField<T> class

Input field for creating a dropdown list of options that users can select from.

Inheritance

Constructors

SelectField({Key? key, required List<Option<T>> options, Option<T>? initialOption, void onTextChanged(String value)?, void onOptionSelected(Option<T> option)?, TextEditingController? textController, SelectFieldMenuController<T>? menuController, FocusNode? focusNode, void onTap()?, void onTapOutside()?, String? hint, InputDecoration? inputDecoration, TextStyle? inputStyle, MenuPosition menuPosition = MenuPosition.below, MenuDecoration<T>? menuDecoration, TextAlign textAlign = TextAlign.start, IconBuilder? prefixIconBuilder, IconBuilder? suffixIconBuilder, Widget optionBuilder(BuildContext context, Option<T> option, bool isSelected, void onOptionSelected(Option<T> option))?, SearchOptions<T>? searchOptions, String? restorationId, StrutStyle? strutStyle, TextDirection? textDirection, TextAlignVertical? textAlignVertical, int maxLines = 1, bool? enabled, void onSaved(String? value)?, String? validator(String? value)?})
const

Properties

enabled → bool?
Whether the input field is able to receive user input. Defaults to true.
final
focusNode → FocusNode?
See FocusNode
final
hashCode → int
The hash code for this object.
no setterinherited
hint → String?
Text that suggests what sort of input the field accepts.
final
initialOption → Option<T>?
Initial option to display in input field
final
inputDecoration → InputDecoration?
The border, labels, icons, and styles used to decorate input field.
final
inputStyle → TextStyle?
Style describing how to format and paint text of input field.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxLines → int
Maximum lines of text in input field. Defaults to 1.
final
Allows you to control menu's behavior or add a custom control.
final
Allows customization of dropdown menu.
final
Positions menu below or above input field.
final
onOptionSelected → void Function(Option<T> option)?
Callback when user selects the option
final
onSaved → void Function(String? value)?
Method to call with the final value when the form is saved via FormState.save.
final
onTap → void Function()?
Callback when input field is tapped.
final
onTapOutside → void Function()?
Callback when tapped outside input field and options' menu.
final
onTextChanged → void Function(String value)?
Callback on text change in input field
final
optionBuilder → Widget Function(BuildContext context, Option<T> option, bool isSelected, void onOptionSelected(Option<T> option))?
Callback for creating custom option widget.
final
options → List<Option<T>>
List of options for the select field menu.
final
prefixIconBuilder → IconBuilder?
An icon that appears before the InputDecoration.prefix or InputDecoration.prefixText and before the editable part of the input field.
final
restorationId → String?
Restoration ID to save and restore the state of the form field.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
searchOptions → SearchOptions<T>?
By providing SearchOptions search is enabled. Note that options' widget height is now fixed to a provided value.
final
strutStyle → StrutStyle?
Defines the strut, which sets the minimum height a line can be relative to the baseline. See TextFormField for more.
final
suffixIconBuilder → IconBuilder?
An icon that appears after the editable part of the text field and after the InputDecoration.suffix or InputDecoration.suffixText.
final
textAlign → TextAlign
Whether and how to align text horizontally in input field
final
textAlignVertical → TextAlignVertical?
The vertical alignment of text within an input box.
final
textController → TextEditingController?
Specifies the TextEditingController for SelectField.
final
textDirection → TextDirection?
A direction in which text flows.
final
validator → String? Function(String? value)?
Method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<SelectField<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