SelectPickerNew<T> class

A modern, generic Select Picker widget that supports any data type T.

This widget provides a cleaner interface, custom builders, and built-in search. It is the recommended replacement for the legacy SelectPicker.

Example usage:

SelectPickerNew<String>(
  items: ['Apple', 'Banana', 'Orange'],
  onChanged: (value) => print(value),
  hint: 'Select a fruit',
)
Inheritance

Constructors

SelectPickerNew({Key? key, List<T>? items, String titleBuilder(T item)?, Widget itemBuilder(BuildContext context, T item, bool isSelected, VoidCallback onTap)?, T? initialValue, ValueChanged<T?>? onChanged, String hint = 'Select', String searchHint = 'Search...', bool showSearch = true, Future<List<T>> onSearch(String query)?, bool disabled = false, InputDecoration? decoration, Widget? emptyWidget, Widget? loadingWidget, bool compareFn(T a, T b)?, String? errorText})
Creates a new SelectPickerNew instance.
const

Properties

compareFn → bool Function(T a, T b)?
A custom function to determine if two items are equal.
final
decoration → InputDecoration?
The decoration to apply to the main input field.
final
disabled → bool
Whether the picker is interactive.
final
emptyWidget → Widget?
A widget to display when the list of items is empty or no search results are found.
final
errorText → String?
An error message to display below the input field.
final
hashCode → int
The hash code for this object.
no setterinherited
hint → String
Placeholder text displayed when no item is selected.
final
initialValue → T?
The initially selected item value.
final
itemBuilder → Widget Function(BuildContext context, T item, bool isSelected, VoidCallback onTap)?
A function to build a custom list item widget in the selection sheet.
final
items → List<T>?
The list of items to select from.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
loadingWidget → Widget?
A widget to display while an asynchronous search is in progress.
final
onChanged → ValueChanged<T?>?
Called when the user selects an item from the picker.
final
onSearch → Future<List<T>> Function(String query)?
An optional callback for asynchronous search.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
searchHint → String
Placeholder text for the search input field.
final
showSearch → bool
Whether to display a search field at the top of the selection sheet.
final
titleBuilder → String Function(T item)?
A function to get the display title of an item.
final

Methods

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