android - How to add custom extension(time) to <message> tag? -


i'm trying add time extension message custom packet extension. seems time gets added while sending message. @ receiver end, shows null.

this packet extension class , embeddedextensionprovider 

public class timestampextension implements packetextension {      public static final string element = "timestamp";     public static final string namespace = "urn:xmpp:timestamp";      public string time = null;      public timestampextension() {      }      public void settime() {         simpledateformat time = new simpledateformat("hh:mm a");         date datetime = new date();         string strtime = time.format(datetime);         this.time = strtime;     }      public string gettime() {         return time;     }      @override     public string getelementname() {         return element;     }      @override     public string getnamespace() {         return namespace;     }      @override     public string toxml() {         return "<" + element + " xmlns='" + namespace + "'><time>" + time             + "</time></" + element + ">";     }      public static class provider extends embeddedextensionprovider {          @override         protected packetextension createreturnextension(string arg0,             string arg1, map<string, string> arg2,             list<? extends packetextension> arg3) {              return new timestampextension();         }     } }

registering provider

providermanager.getinstance().addextensionprovider(             timestampextension.element, timestampextension.namespace,             new timestampextension.provider());

sending message extension

timestampextension timeext = new timestampextension(); timeext.settime(); msg.addextension(timeext); connection.sendpacket(msg);

message xml output @ sender:

<message id="m55k5-7" to="testfirzan@sushant" type="chat"> <body>hi</body><request xmlns='urn:xmpp:receipts'/> <timestamp xmlns='urn:xmpp:timestamp'> <time>01:04 pm</time> </timestamp>

message xml output @ receiver:

<message id="m55k5-7" to="testfirzan@sushant" from="testsushant@sushant/smack" type="chat"> <body>hi</body><request xmlns='urn:xmpp:receipts'/> <timestamp xmlns='urn:xmpp:timestamp'> <time>null</time> </timestamp>

it's supposed show sending time in time element. i'm doing wrong ?

sorry folks late answer.

since time mandatory parameter me, end using defaultpacketextension

//to sent message private void sendmessage(string message, string recipient) {      message msg = new message(recipient, message.type.chat);     msg.setbody(message);      //getting current timestamp in string format     string messagetimestamp = string.valueof(system.currenttimemillis());      //creating default packet extension name 'timestamp' , urn 'urn:xmpp:timestamp'     defaultpacketextension exttimestamp = new defaultpacketextension(                                         "timestamp", "urn:xmpp:timestamp");      //setting value in extension     exttimestamp.setvalue("timestamp", messagetimestamp);      //add extension message tag     msg.addextension(exttimestamp);      //send message     xmppconnection.sendpacket(message); }   //to receive , parse message extension implement packetlistener @override public void processpacket(packet packet) {      message message = (message) packet;      //get extension message     defaultpacketextension exttimestamp = (defaultpacketextension) message                     .getextension("urn:xmpp:timestamp");      //get value extension     long timestamp = long.parselong(exttimestamp.getvalue("timestamp"));      system.out.println("message :" + message.getbody() + " timestamp: "+timestamp); }

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