AdvancedValueListenable<T> class abstract

An interface for subclasses of Listenable that expose a value.

This class adds the comfort of listeners which directly expose the current value.

Inheritance

• Object
• Listenable
• ValueListenable<T>
• AdvancedValueListenable

Implementers

• AdvancedValueListenableMixin
• EmptyValueListenable
• NotifierBase
• StreamSubscriptionListenable

Constructors

AdvancedValueListenable()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → T

The current value of the object. When the value changes, the callbacks registered with addListener will be invoked.

no setter, inherited

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object notifies its listeners.

inherited

addValueListener(ValueCallback<T> listener) → void

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that the object notifies.

inherited

removeValueListener(ValueCallback<T> listener) → void

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited