GFDropdown<T> class

Inheritance

Constructors

GFDropdown({Key? key, required List<DropdownMenuItem<T>>? items, Widget? icon, DropdownButtonBuilder? selectedItemBuilder, T? value, Widget? hint, Widget? disabledHint, required ValueChanged<T?>? onChanged, VoidCallback? onTap, int elevation = 8, TextStyle? style, Widget? underline, Color? iconDisabledColor, Color? iconEnabledColor, double iconSize = 24.0, bool isDense = true, bool isExpanded = false, double? itemHeight = 40, Color? focusColor, FocusNode? focusNode, bool autofocus = false, Color? dropdownColor, FormFieldValidator<T>? validator, EdgeInsets padding = const EdgeInsets.all(8), BorderRadius borderRadius = const BorderRadius.all(Radius.circular(4)), BorderSide border = const BorderSide(color: Colors.transparent, width: 1, style: BorderStyle.solid), dynamic dropdownButtonColor = GFColors.WHITE})
GF Dropdown let user to select from the number of items and display selected item in the button. It displays list of items in the overlay dropdown fashion.
const

Properties

autofocus → bool
On true state it should focus itself if nothing else is already focused. Defaults to false
final
border → BorderSide
Defines the border of dropdown button
final
borderRadius → BorderRadius
Defines the border radius of the dropdown.
final
disabledHint → Widget?
A message to show when the dropdown is disabled.
final
Defines the background color of the dropdownButton.
final
Defines the background color of the dropdown.
final
elevation → int
The z-coordinate at which to place the menu when open.
final
focusColor → Color?
The color for the button's Material when it has the input focus.
final
focusNode → FocusNode?
Defines the keyboard focus for this widget.
final
hashCode → int
The hash code for this object.
no setterinherited
hint → Widget?
A placeholder widget that is displayed by the dropdown button.
final
icon → Widget?
The widget to use for the drop-down button's icon. Defaults to an Icon with the Icons.arrow_drop_down glyph.
final
iconDisabledColor → Color?
The color of any Icon descendant of icon if this button is disabled, i.e. if onChanged is null.
final
iconEnabledColor → Color?
The color of any Icon descendant of icon if this button is enabled, i.e. if onChanged is defined.
final
iconSize → double
The size to use for the drop-down button's down arrow icon button.
final
isDense → bool
Reduce the button's height.
final
isExpanded → bool
Set the dropdown's inner contents to horizontally fill its parent.
final
itemHeight → double?
Defines the height of the menu items
final
items → List<DropdownMenuItem<T>>?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → ValueChanged<T?>?
Called when the user selects an item. If the onChanged callback is null or the list of DropdownButton.items is null then the dropdown button will be disabled,
final
onTap → VoidCallback?
Called when the dropdown button is tapped.
final
padding → EdgeInsets
Defines the padding given inside the dropdown
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedItemBuilder → DropdownButtonBuilder?
final
style → TextStyle?
Defaults to the TextTheme.titleMedium value of the current ThemeData.textTheme of the current Theme.
final
underline → Widget?
The widget to use for drawing the drop-down button's underline.
final
validator → FormFieldValidator<T>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
final
value → T?
The value of the currently selected DropdownMenuItem.
final

Methods

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