addObserver method

  1. @override
Future<void> addObserver(
  1. TUICallObserver observer
)
override

Implementation

@override
Future<void> addObserver(TUICallObserver observer) async {
  if (_observerList.contains(observer)) {
    return;
  }
  _observerList.add(observer);
  methodChannel.invokeMethod("addObserver", {});
}