Fired immediately after a connection completes (or fails).
- (void)onConnected:(int)statusCode :(NSString*)description;
func onConnected(_ statusCode: Int32, _ description: String)
If the connection is made normally, StatusCode is 0 and Description is "OK".
If the connection fails, StatusCode has the error code returned by the TCP/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.
Please refer to the Error Codes section for more information.