PlatformMenu class Null safety

A class for representing menu items that have child submenus.

See also:

Inheritance
Mixed in types

Constructors

PlatformMenu({required String label, VoidCallback? onOpen, VoidCallback? onClose, required List<MenuItem> menus})
Creates a const PlatformMenu.
const

Properties

descendants → List<MenuItem>
Returns all descendant MenuItems of this item.
read-onlyoverride
hashCode → int
The hash code for this object.
read-onlyinherited
label → String
The label that will appear on the menu.
final
members → List<MenuItem>
Returns the list of group members if this menu item is a "grouping" menu item, such as PlatformMenuItemGroup.
read-onlyinherited
The menu items in the submenu opened by this menu item.
final
onClose → VoidCallback?
The callback that is called when this menu is closed.
final
onOpen → VoidCallback?
The callback that is called when this menu is opened.
final
onSelected → VoidCallback?
Returns a callback, if any, to be invoked if the platform menu receives a "Menu.selectedCallback" method call from the platform for this item.
read-onlyinherited
onSelectedIntent → Intent?
Returns an intent, if any, to be invoked if the platform receives a "Menu.selectedCallback" method call from the platform for this item.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
shortcut → MenuSerializableShortcut?
The optional shortcut that selects this MenuItem.
read-onlyinherited

Methods

debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
override
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
toChannelRepresentation(PlatformMenuDelegate delegate, {required MenuItemSerializableIdGenerator getId}) → Iterable<Map<String, Object?>>
Converts the representation of this item into a map suitable for sending over the default "flutter/menu" channel used by DefaultPlatformMenuDelegate.
override
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 brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

getDescendants(PlatformMenu item) → List<MenuItem>
Returns all descendants of the given item.
serialize(PlatformMenu item, PlatformMenuDelegate delegate, MenuItemSerializableIdGenerator getId) → Map<String, Object?>
Converts the supplied object to the correct channel representation for the 'flutter/menu' channel.