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
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
runtimeType Type
A representation of the runtime type of the object.
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 int index, required int count, 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. [...]