Subscribe to a Nearby Message 2 - subscribe

sub2.java

val client = Nearby.getMessagesClient(this)

private val messageListener = object : MessageListener() {
    override fun onFound(message: Message) {
        // message.content contains payload
    }
    override fun onLost(message: Message) {}
}

client.subscribe(messageListener, subscribeOpts)
    .addOnSuccessListener(this) {
        Log.d(TAG, "subscribe success")
    }
    .addOnFailureListener(this) { e ->
        Log.e(TAG, "subscirbe failed", e)
    }