notifyChange method

@override void notifyChange([ ChangeRecord? change ])

Schedules change to be delivered.

If change is omitted then ChangeRecord.ANY will be sent.

If there are no listeners to changes, this method does nothing.

Implementation

@override
void notifyChange([C? change]) {
  if (!hasObservers) {
    return;
  }
  if (change != null) {
    (_queue ??= <C>[]).add(change);
  }
  if (!_scheduled) {
    scheduleMicrotask(deliverChanges);
    _scheduled = true;
  }
}