subscribe method
Implementation
@override
Stream<Map<String, dynamic>> subscribe(
String identifier,
String eventName, {
bool onlyOnce = false,
}) {
methodChannel.invokeMethod(MethodNames.subscribe, {
'eventName': eventName,
'onlyOnce': onlyOnce,
'identifier': identifier,
});
final bus = BlueConicEventBus();
return bus.on(eventName);
}