CustomDropDownButton<T> class

A customizable drop-down button widget that displays a menu with configurable styling, positioning, and behavior.

This widget is intended for use in a Flutter package. It provides a flexible API to customize both the button and its drop-down menu.

Inheritance

Constructors

CustomDropDownButton({required ButtonStyle buttonStyle, required String? buttonText, required List<CustomDropDownButtonItem<T>> menuItems, required Widget buttonIcon({required bool showedMenu})?, Key? key, double menuVerticalSpacing = 8, Color menuBackgroundColor = Colors.grey, DropDownButtonPosition position = DropDownButtonPosition.bottomCenter, bool buttonIconFirst = true, EdgeInsets? menuPadding, BorderRadius? menuBorderRadius, TextStyle? buttonTextStyle, Widget customButton({required VoidCallback? showHideMenuEvent, required bool showMenu})?, T? selectedValue, Color? buttonIconColor, Key? menuKey, double menuItemsSpacing = 0, double buttonIconSpace = 0, Widget? buttonChild})
Creates a CustomDropDownButton.
const

Properties

buttonChild → Widget?
final
buttonIcon → Widget Function({required bool showedMenu})?
Determines whether to show the indicator icon on the main button.
final
buttonIconColor → Color?
Color for the icon displayed on the main button.
final
buttonIconFirst → bool
Alignment for the icon within the main button.
final
buttonIconSpace → double
final
buttonStyle → ButtonStyle
Button style for the main drop-down button.
final
buttonText → String?
Text displayed on the main button.
final
buttonTextStyle → TextStyle?
Text style for the main button.
final
customButton → Widget Function({required VoidCallback? showHideMenuEvent, required bool showMenu})?
A custom builder for the main button. If provided, it overrides buttonText.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
Background color of the drop-down menu.
final
Border radius for the drop-down menu.
final
List of menu items to be displayed in the drop-down.
final
Spacing between menu items.
final
final
Padding for the menu items inside the drop-down.
final
Vertical spacing between the main button and the drop-down menu.
final
position → DropDownButtonPosition
Preferred position for the drop-down menu relative to the button.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedValue → T?
The currently selected value.
final

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.
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