MenuController class final

Opens and closes a single MenuAnchor.

isOpen is false while detached. open throws in every build mode until a MenuAnchor attaches; menus have no pending-open contract. close is a no-op while detached or already closed. maybeOf returns the nearest logical ancestor's controller without registering an inherited dependency.

Constructors

MenuController()

Starts detached; open throws until a MenuAnchor attaches.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isOpen → bool

Whether the attached anchor currently has an open menu.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

close() → void

Closes the attached menu. Unattached or already-closed calls are no-ops.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

open({Offset? position}) → void

Opens the attached menu. Throws if this controller is not attached.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

maybeOf(BuildContext context) → MenuController?

The nearest enclosing MenuAnchor controller, without a dependency.