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-only, override
hashCode int
The hash code for this object.
read-only, inherited
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-only, inherited
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-only, inherited
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-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
shortcut MenuSerializableShortcut?
The optional shortcut that selects this MenuItem.
read-only, inherited

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.