PopupMenuItemState<T, W extends PopupMenuItem<T>> class

The State for PopupMenuItem subclasses.

By default this implements the basic styling and layout of Material Design popup menu items.

The buildChild method can be overridden to adjust exactly what gets placed in the menu. By default it returns PopupMenuItem.child.

The handleTap method can be overridden to adjust exactly what happens when the item is tapped. By default, it uses Navigator.pop to return the PopupMenuItem.value from the menu route.

This class takes two type arguments. The second, W, is the exact type of the Widget that is using this State. It must be a subclass of PopupMenuItem. The first, T, must match the type argument of that widget class, and is the type of values returned from this menu.

Inheritance

Constructors

PopupMenuItemState()

Properties

context BuildContext
The location in the tree where this widget builds. [...]
read-only, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
mounted bool
Whether this State object is currently in a tree. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
widget → W
The current configuration. [...]
read-only, inherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget. [...]
buildChild() Widget
The menu item contents. [...]
@protected
handleTap() → void
The handler for when the user selects the menu item. [...]
@protected
deactivate() → void
Called when this object is removed from the tree. [...]
@mustCallSuper, @protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
didChangeDependencies() → void
Called when a dependency of this State object changes. [...]
@mustCallSuper, @protected, inherited
didUpdateWidget(W oldWidget) → void
Called whenever the widget configuration changes. [...]
@mustCallSuper, @protected, inherited
dispose() → void
Called when this object is removed from the tree permanently. [...]
@mustCallSuper, @protected, inherited
initState() → void
Called when this object is inserted into the tree. [...]
@mustCallSuper, @protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
reassemble() → void
Called whenever the application is reassembled during debugging, for example during hot reload. [...]
@mustCallSuper, @protected, inherited
setState(VoidCallback fn) → void
Notify the framework that the internal state of this object has changed. [...]
@protected, inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this object.
inherited
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode. [...]
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited