SearchableDropdown class

Single-select searchable dropdown without BLoC/Cubit.

Pass items and isLoading from your own state (e.g. setState, Riverpod, Provider). When onSearch is non-null, call it on each query change while online; update items from the parent when results arrive. When onSearch is null, the list is filtered locally against the last full list cached from items.

Inheritance

Constructors

SearchableDropdown({required String hintText, required List<DropdownItem> items, required bool isLoading, Key? key, DropdownItem? selectedValue, void onSelectionChanged(DropdownItem item)?, void onSearch(String query)?, String? searchHint, String? noResultsText, String? loadingText, bool needInitialFetch = false, DropdownPlusTheme? dropdownTheme, DropdownPlusThemeStyle? themeStyle, Widget itemBuilder(DropdownItem item, bool isSelected)?, Widget selectedValueBuilder(DropdownItem selectedItem)?, Future<bool> checkInternetConnection()?, Duration debounceDuration = Duration.zero, bool enabled = true, bool autofocusSearch = false, DropdownEmptyBuilder? emptyBuilder, DropdownLoadingBuilder? loadingBuilder, Object? error, VoidCallback? onRetry, DropdownErrorBuilder? errorBuilder, String? semanticsLabel, int minSearchLength = 0, VoidCallback? onLoadMore, bool hasMore = false, bool isLoadingMore = false, FocusNode? focusNode, DropdownMenuController? menuController})
const

Properties

autofocusSearch → bool
Focus the search field when the panel opens.
final
checkInternetConnection → Future<bool> Function()?
final
debounceDuration → Duration
Debounce delay before onSearch is invoked. Default: no debounce.
final
final
emptyBuilder → DropdownEmptyBuilder?
final
enabled → bool
When false, the dropdown cannot be opened or searched.
final
error → Object?
final
errorBuilder → DropdownErrorBuilder?
final
focusNode → FocusNode?
final
hashCode → int
The hash code for this object.
no setterinherited
hasMore → bool
final
hintText → String
Placeholder when nothing is selected.
final
isLoading → bool
When true, the trigger shows a small spinner.
final
isLoadingMore → bool
final
itemBuilder → Widget Function(DropdownItem item, bool isSelected)?
final
items → List<DropdownItem>
Items currently shown (after remote search or full list for local filter).
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
loadingBuilder → DropdownEmptyBuilder?
final
loadingText → String?
final
Optional menu controller for programmatic open/close (typed API).
final
minSearchLength → int
final
needInitialFetch → bool
If true and onSearch is non-null, calls onSearch('') once on mount.
final
noResultsText → String?
final
onLoadMore → VoidCallback?
final
onRetry → VoidCallback?
final
onSearch → void Function(String query)?
Called on each search box change while online, if non-null.
final
onSelectionChanged → void Function(DropdownItem item)?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
searchHint → String?
final
selectedValue → DropdownItem?
final
selectedValueBuilder → Widget Function(DropdownItem selectedItem)?
final
semanticsLabel → String?
final
themeStyle → DropdownPlusThemeStyle?
final

Methods

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