An object that maintains a list of listeners.
- Implemented by
Constructors
- Listenable()
-
Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.
const - Listenable.merge(List<Listenable> listenables)
-
Return a Listenable that triggers when any of the given Listenables themselves trigger.
factory
Properties
- hashCode → int
-
Get a hash code for this object.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object notifies its listeners.
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that the object notifies.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited