How to implement message read status like whatsapp

问题:

I am developing one application in that chatting is one module, for chatting i am using xmpp. when i am sending message i am getting that message delivery status using DeliveryReceiptManager.

DeliveryReceiptManager.getInstanceFor(connection).enableAutoReceipts();
DeliveryReceiptManager.getInstanceFor(connection).addReceiptReceivedListener(new ReceiptReceivedListener()
{
        @Override
        public void onReceiptReceived(String arg0, String arg1, String arg2)
        {
            Log.v("app", arg0 + ", " + arg1 + ", " + arg2);
        }
});

But i need to show that message is user READ or NOT like whatsApp blue tickmark, Can any one help me i am struck here. how to implement this message read concept.

Thanks in advance.

回答1:

create custom packet extension class

public class ReadReceipt implements PacketExtension
{

public static final String NAMESPACE = "urn:xmpp:read";
public static final String ELEMENT = "read";

private String id; /// original ID of the delivered message

public ReadReceipt(String id)
{
    this.id = id;
}

public String getId()
{
    return id;
}

@Override
public String getElementName()
{
    return ELEMENT;
}

@Override
public String getNamespace()
{
    return NAMESPACE;
}

@Override
public String toXML()
{
    return "<read xmlns='" + NAMESPACE + "' id='" + id + "'/>";
}

public static class Provider extends EmbeddedExtensionProvider
{
    @Override
    protected PacketExtension createReturnExtension(String currentElement, String currentNamespace,
            Map<String, String> attributeMap, List<? extends PacketExtension> content)
    {
        return new ReadReceipt(attributeMap.get("id"));
    }
}
}

when enters the chat list send message tag with same packet id like this

Message message = new Message(userJid);
ReadReceipt read = new ReadReceipt(messagePacketID);
message.addExtension(read);
mConnection.sendPacket(sendReadStatus);

where mConnection is xmmppConnection object

add packet extension to message object

add this extension provider to ProviderManager before connecting to server

ProviderManager.getInstance().addExtensionProvider(ReadReceipt.ELEMENT, ReadReceipt.NAMESPACE, new ReadReceipt.Provider());

create packetListener class to receive read receipt from receiver

public class ReadReceiptManager implements PacketListener
    {



  private static Map<Connection, ReadReceiptManager> instances = Collections.synchronizedMap(new WeakHashMap<Connection, ReadReceiptManager>());
    static 
    {
        Connection.addConnectionCreationListener(new ConnectionCreationListener() 
        {
            public void connectionCreated(Connection connection) 
            {
                getInstanceFor(connection);
            }
        });
    }

private Set<ReceiptReceivedListener> receiptReceivedListeners = Collections.synchronizedSet(new HashSet<ReceiptReceivedListener>());

private ReadReceiptManager(Connection connection) 
{
    ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection);
    sdm.addFeature(ReadReceipt.NAMESPACE);
    instances.put(connection, this);

    connection.addPacketListener(this, new PacketExtensionFilter(ReadReceipt.NAMESPACE));
}

 public static synchronized ReadReceiptManager getInstanceFor(Connection connection) 
 {
    ReadReceiptManager receiptManager = instances.get(connection);

    if (receiptManager == null) 
    {
        receiptManager = new ReadReceiptManager(connection);
    }

    return receiptManager;
}

@Override
public void processPacket(Packet packet) 
{
    ReadReceipt dr = (ReadReceipt)packet.getExtension(ReadReceipt.ELEMENT, ReadReceipt.NAMESPACE);

    if (dr != null) 
    {
        for (ReceiptReceivedListener l : receiptReceivedListeners) 
        {
            l.onReceiptReceived(packet.getFrom(), packet.getTo(), dr.getId());
        }
    }
}

public void addReadReceivedListener(ReceiptReceivedListener listener) {
    receiptReceivedListeners.add(listener);
}

public void removeRemoveReceivedListener(ReceiptReceivedListener listener) {
    receiptReceivedListeners.remove(listener);
  }
 }

finally add listener to your xmpp connection object it works successfully

            ReadReceiptReceivedListener readListener = new ReadReceiptReceivedListener()
                {
                    @Override
                    public void onReceiptReceived(String fromJid, String toJid, String packetId) 
                    {
                        Log.i("Read", "Message Read Successfully");
                    }
                };  
                ReadReceiptManager.getInstanceFor(connection).addReadReceivedListener(readListener);

回答2:

You need to implement displayed when message is seen, this is basic why how messaging apps implements typing, sent, delivered and seen status

http://xmpp.org/extensions/xep-0022.html#sect-idp643808

回答3:

Create a message with different attributes which indicate its a read receipt, which shall be sent when receiver reads the message. At the sender's end when you receive a message with read receipt attribute, then mark the message as read, as two blue ticks.

<message id='xxxxx' from='xxxxxxxx' to='xxxxxxxxx'>
<status_id>101</status_id>
</message>

Here status_id=101, I have used to send read receipt, which shall identify it at receiver end.