removeListener method
Remove a previously registered closure from the list of closures that the object notifies.
Implementation
@override
@mustCallSuper
void removeListener(VoidCallback callback) {
_notifier.removeListener(callback);
}
Remove a previously registered closure from the list of closures that the object notifies.
@override
@mustCallSuper
void removeListener(VoidCallback callback) {
_notifier.removeListener(callback);
}