Hello all,

I want to ask about: how to stop Listen (Un-Listen) to a topic without disconnecting from the server?

I've tried to Unsubscribe the topic, but the 'Listen' function is not destroyed,
so when I Subscribe to the same topic again, I have two 'Listen' function listening to the same topic and when a message published into that topic, I got two message from that topic.
What I need is: I can stop the 'Listen' function when i Unsubscribe the topic, and Listen again when i Subscribe the topic.

Thank you!