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Srogacki,

I know this is a little late and you've already probably worked it out, but the RosTextView widget is a subscriber attached to a TextView. As per the basic ROS concepts a subscriber must be subscribed to a the message generated by a Publisher. As such any subscriber doesn't generate any messages but only listens to those made by a Publisher. I guess a better description of a RosTopic is a message channel between at least one publisher and one subscriber.

As this is the case, the subscriber in the RosTextView cannot subscribe to the messages from another subscriber, because your "subscribing" node does not generate any. The only way to see the messages your "subscribing" node might be listening to is to have your RosTextView subscribe to the same publisher over the same topic.

Hope this helps

Peter