public override void ViewDidLoad()
{
base.ViewDidLoad();
lblConnected.Text = "Disconnected";
_mqttClient = MqttClientFactory.CreateClient("tcp://m11.cloudmqtt.com:12360", Guid.NewGuid().ToString(), "mike", "cloudmqtt");
_mqttClient.Connected += (object sender, EventArgs e) => {
InvokeOnMainThread(() =>
{
var subscription = new Subscription("mqttdotnet/pubtest", QoS.BestEfforts);
_mqttClient.Subscribe(subscription);
setConneectedState();
});
};
_mqttClient.ConnectionLost += (object sender, EventArgs e) => {
InvokeOnMainThread(() => {
setDisconnectedState();
});
};
_mqttClient.Subscribed += _mqttClient_Subscribed;
_mqttClient.Unsubscribed += _mqttClient_Unsubscribed;
_mqttClient.PublishArrived += _mqttClient_PublishArrived;
_mqttClient.Connect();
}
/// <summary>
/// Subscribe to multiple topics
/// </summary>
/// <param name="subscriptions">Array of Subscription objects</param>
public MqttSubscribeMessage(ulong messageID, Subscription[] subscriptions)
: base(MessageType.SUBSCRIBE)
{
_messageID = messageID;
_subscriptions = subscriptions;
base.msgQos = QoS.AtLeastOnce;
// Work out the length of the payload
int payloadLength = 0;
foreach (Subscription s in _subscriptions)
{
payloadLength += (2 + GetUTF8StringLength(s.Topic) + 1);
}
this.variableHeaderLength = (
8 + // Length of message ID
payloadLength // Length of the payload
);
}
public void Subscribe(Subscription subscription, PublishArrivedDelegate subscriber)
{
if (topicTree == null)
{
topicTree = new TopicTree<PublishArrivedDelegate>();
}
topicTree.Add( subscription.Topic, subscriber);
// TODO: Check if we're already subscribed.
Subscribe(subscription);
}
public int Subscribe(Subscription subscription)
{
return Subscribe(new Subscription[] { subscription });
}
public int Subscribe(Subscription[] subscriptions)
{
if (manager.IsConnected)
{
ushort messID = MessageID;
manager.SendMessage(new MqttSubscribeMessage(messID, subscriptions));
return messID;
}
else
{
throw new MqttNotConnectedException("You need to connect to a broker before trying to Publish");
}
}
public ulong Subscribe(Subscription subscription)
{
return Subscribe(new Subscription[] { subscription });
}
