DropDownHeader class
Drop-down menu header
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- DropDownHeader
Constructors
-
DropDownHeader.new({Key? key, required DropDownController controller, required List<
DropDownItem> items, DropDownBoxStyle boxStyle = const DropDownBoxStyle(height: 50), DropDownItemStyle itemStyle = const DropDownItemStyle(), OnDropDownHeaderItemTap? onItemTap, OnDropDownItemChanged? onItemChanged, OnDropDownExpandStateChanged? onExpandStateChanged, NullableIndexedWidgetBuilder? itemBuilder, IndexedWidgetBuilder? dividerBuilder, ScrollPhysics? physics}) -
const
Properties
- boxStyle → DropDownBoxStyle
-
Style of the drop-down menu header component
final
- controller → DropDownController
-
Controller of the drop-down menu
final
- dividerBuilder → IndexedWidgetBuilder?
-
Builder of the dividing line between the children of the drop-down menu header component, used to customize the dividing line
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- itemBuilder → NullableIndexedWidgetBuilder?
-
Builder for the sub-items of the drop-down menu header component, used to customize Item
final
-
items
→ List<
DropDownItem> -
Data of the drop-down menu header component
final
- itemStyle → DropDownItemStyle
-
Style of the drop-down menu header item
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onExpandStateChanged → OnDropDownExpandStateChanged?
-
The expansion state change event of the drop-down menu
final
- onItemChanged → OnDropDownItemChanged?
-
The selected state change event of the child item of the drop-down menu header component
final
- onItemTap → OnDropDownHeaderItemTap?
-
Click event of the child item of the drop-down menu header component
final
- physics → ScrollPhysics?
-
Whether the drop-down menu header is scrollable
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< DropDownHeader> -
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