observe method
Dispose
observe(
- Listener<
ChangeNotification< listener, {T> > - bool fireImmediately = false,
override
Implementation
@override
Dispose observe(Listener<ChangeNotification<T>> listener,
{bool fireImmediately = false}) {
if (fireImmediately == true) {
listener(ChangeNotification<T>(
type: OperationType.update,
newValue: _value,
oldValue: null,
object: this));
}
return _listeners.add(listener);
}