addUserStatusListener method
Future<void>
addUserStatusListener(
- void callback(
- UserStatusResponse response
- void onError(
- String error
Implementation
Future<void> addUserStatusListener(void callback(UserStatusResponse response),
{void onError(String error)?}) =>
_methodChannel.invokeMethod(
"Backendless.Messaging.Channel.addUserStatusListener", {
"channelHandle": _channelHandle
}).then((handle) => BackendlessMessaging._userStatusCallbacks[handle] =
new EventCallback(callback, onError));