PopupMenuItemState<T, W extends PopupMenuItem<T> > class
Null safety
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.
Constructors
Properties
- context → BuildContext
-
The location in the tree where this widget builds.
read-onlyinherited
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- mounted → bool
-
Whether this State object is currently in a tree.
read-onlyinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
- widget → W
-
The current configuration.
read-onlyinherited
Methods
-
activate(
) → void - Called when this object is reinserted into the tree after having been removed via deactivate.
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
buildChild(
) → Widget? -
The menu item contents.
protected">@protected
-
deactivate(
) → void - Called when this object is removed from the tree.
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didChangeDependencies(
) → void - Called when a dependency of this State object changes.
-
didUpdateWidget(
covariant W oldWidget) → void - Called whenever the widget configuration changes.
-
dispose(
) → void - Called when this object is removed from the tree permanently.
-
handleTap(
) → void -
The handler for when the user selects the menu item.
protected">@protected
-
initState(
) → void - Called when this object is inserted into the tree.
-
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.
-
setState(
VoidCallback fn) → void -
Notify the framework that the internal state of this object has changed.
protected">@protectedinherited
-
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
-
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