onCreate method Null safety

  1. @override
void onCreate()
override

Implementation

@override
void onCreate() {
  super.onCreate();
  if (!_onCreated) {
    _onCreated = true;
    messages?.listen((event) {
      TypedEvent<JanusEvent> typedEvent = TypedEvent<JanusEvent>(
          event: JanusEvent.fromJson(event.event), jsep: event.jsep);
      if (typedEvent.event.plugindata?.data["streaming"] == "event" &&
          typedEvent.event.plugindata?.data["result"] != null &&
          typedEvent.event.plugindata?.data["result"]['status'] ==
              'preparing') {
        typedEvent.event.plugindata?.data = StreamingPluginPreparingEvent();
        _typedMessagesSink?.add(typedEvent);
      } else if (typedEvent.event.plugindata?.data["streaming"] == "event" &&
          typedEvent.event.plugindata?.data["result"] != null &&
          typedEvent.event.plugindata?.data["result"]['status'] ==
              'stopping') {
        typedEvent.event.plugindata?.data = StreamingPluginStoppingEvent();
        _typedMessagesSink?.add(typedEvent);
      }

      /// not tested
      else if (typedEvent.event.plugindata?.data['streaming'] == 'event' &&
          (typedEvent.event.plugindata?.data['error_code'] != null ||
              typedEvent.event.plugindata?.data?['result']?['code'] !=
                  null)) {
        _typedMessagesSink
            ?.addError(JanusError.fromMap(typedEvent.event.plugindata?.data));
      }
    });
  }
}