SDropdownMenuCascade<T> class
A dropdown menu that uses an Overlay. This is a classic type of dropdown menu. Use a SMenuItem.clickable if you would like the onChange function of this dropdown to run. The item's value will be made available through it.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- SBase
- SBaseDropdownMenu<
T> - SDropdownMenuCascade
Constructors
-
SDropdownMenuCascade({required List<
SMenuItem> items, Key? key, Duration duration = const Duration(milliseconds: 250), Widget? child, SDropdownMenuStyle style = const SDropdownMenuStyle(), double height = 350, double width = 250, void onChange(T value, int index)?, SMenuController? controller, Widget? header, Curve curve = Curves.easeInOutCirc, Widget? icon, SDropdownMenuPosition? position = SDropdownMenuPosition.bottomCenter, Widget builder(BuildContext context, List<SMenuItem> items)?, SMenuItemStyle buttonStyle = const SMenuItemStyle()}) -
const
Properties
-
builder
→ Widget Function(BuildContext context, List<
SMenuItem> items)? -
The builder that makes the menu. Completely overwrites the menu for complete
customization. This means many menu parameters will not work.
finalinherited
-
The style of the dropdown menu button
finalinherited
- child → Widget?
-
The child widget for the dropdown menu button
finalinherited
- controller → SMenuController?
-
The optional controller for this menu
finalinherited
- curve → Curve
-
The animation curve
finalinherited
- duration → Duration
-
The animation duration
finalinherited
-
The widget at the bottom of the menu
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- header → Widget?
-
The widget at the top of the menu
finalinherited
- height → double
-
Height of the menu
finalinherited
- icon → Widget?
-
Dropdown button icon, defaults to Caret
finalinherited
-
items
→ List<
SMenuItem> -
Items that make up the menu
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onChange → void Function(T value, int index)?
-
onChange is called when the selected option is changed.;
It will pass back the value and the index of the option.
finalinherited
- performanceMode → bool
-
If true, performance mode is enabled. This means a ListView with lazy loading will
be used in the menu rather than a SingleChildScrollView and Flex which
load all items at once. Doesn't work if using a builder.
finalinherited
- position → SDropdownMenuPosition?
-
The position that the menu will open relative to the button.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- style → SDropdownMenuStyle
-
Style
finalinherited
- width → double
-
Width of this menu. Button width must be set for this to take effect
finalinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< SDropdownMenuCascade< 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}) → 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