public void unsubscribe(String topic) {
if (androidClient.isConnected()) {
try {
androidClient.unsubscribe(topic);
} catch (MqttException err) {
Log.i(DEBUG_TAG, err.getLocalizedMessage());
}
} else {
Log.i(DEBUG_TAG, "Could not unsubscribe. Client is not connected. Please connect first.");
}
}
