PubSub Class Methods - Android

publish()

• publish() is used to publish messages on a specified topic in the meeting.

Parameters

• topic

  • type: String
  • This is the name of the topic, for which message will be published.

• message

  • type: String
  • This is the actual message.

• options

  • type: PubSubPublishOptions
  • This specifies the options for publish.

• payload

  • type: JSONObject
  • OPTIONAL
  • If you need to include additional information along with a message, you can pass here as JSONObject.

Returns

• void

Example

Kotlin

// Publish message for 'CHAT' topic
val publishOptions = PubSubPublishOptions()
publishOptions.isPersist = true

meeting!!.pubSub.publish("CHAT", "Hello from Android", publishOptions)

Java

// Publish message for 'CHAT' topic
PubSubPublishOptions publishOptions = new PubSubPublishOptions();
publishOptions.setPersist(true);

meeting.pubSub.publish("CHAT", "Hello from Android", publishOptions);

---

subscribe()

• subscribe() is used to subscribe a particular topic to get all the messages of that particular topic in the meeting.

Parameters

• topic:

  • type: String
  • Participants can listen to messages on that particular topic.

• listener:

  • type: PubSubMessageListener

Returns

• List<PubSubMessage>

Example

Kotlin

var pubSubMessageListener: ubSubMessageListener =
  PubSubMessageListener { message ->
    Log.d("#message","onMessageReceived: " + message.message)
  }

  // Subscribe for 'CHAT' topic
  val pubSubMessageList = meeting!!.pubSub.subscribe("CHAT", pubSubMessageListener)

Java

PubSubMessageListener pubSubMessageListener = new PubSubMessageListener() {
    @Override
    public void onMessageReceived(PubSubMessage message) {
        Log.d("#message", "onMessageReceived: " + message.getMessage());
    }
};

 // Subscribe for 'CHAT' topic
 List<PubSubMessage> pubSubMessageList = meeting.pubSub.subscribe("CHAT", pubSubMessageListener);

---

unsubscribe()

• unsubscribe() is used to unsubscribe a particular topic on which you have subscribed priviously.

Parameters

• topic:

  • type: String
  • This is the name of the topic to be unsubscribed.

• listener:

  • type: PubSubMessageListener

Returns

• void

Example

Kotlin

// Unsubscribe for 'CHAT' topic
meeting!!.pubSub.unsubscribe("CHAT", pubSubMessageListener)

Java

// Unsubscribe for 'CHAT' topic
meeting.pubSub.unsubscribe("CHAT", pubSubMessageListener);