DropdownMenus<K, V> class
下拉菜单
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- DropdownMenus
- Available extensions
Constructors
-
DropdownMenus({Key? key, Color backgroundColor = const Color(0x80000000), double? width, bool isModal = false, Decoration? decoration, MainAxisAlignment mainAxisAlignment = MainAxisAlignment.spaceAround, EdgeInsetsGeometry? margin, EdgeInsetsGeometry? padding, DropdownMenusChanged<
K, V> ? onChanged}) -
const
Properties
- backgroundColor → Color
-
value 显示时 的背景色
final
- decoration → Decoration?
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- isModal → bool
-
是否模态 isModal=true,背景点击无响应
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- mainAxisAlignment → MainAxisAlignment
-
final
- margin → EdgeInsetsGeometry?
-
final
-
子menus
final
-
onChanged
→ DropdownMenusChanged<
K, V> ? -
final
- padding → EdgeInsetsGeometry?
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- width → double?
-
label 和 value 宽
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< DropdownMenus< K, V> > -
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}) → 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