XMPP Client Android GTalk Sample

Before doing this app Download ASmack Library and Enable Internet permission in you manifiest.

 public class ASmackAsync extends AsyncTask<String, Void, String>{  
 private ProgressDialog pd;  
 private Context ctxt;  
 public ASmackAsync(Context ctxt) {  
 this.ctxt=ctxt;  
 }  
 @Override  
 protected void onPreExecute() {  
 super.onPreExecute();  
 pd=new ProgressDialog(ctxt);  
 pd.show();  
 pd.setContentView(new ProgressBar(ctxt), new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));  
 }  
 @Override  
 protected String doInBackground(String... params) {  
 return ASmack.connectGServer(params[0], params[1]);  
 }  
 @Override  
 protected void onPostExecute(String result) {  
 super.onPostExecute(result);  
 pd.dismiss();  
 if(result==ASmack.GCONNECT){  
 Toast.makeText(ctxt, "Connected",10).show();  
 }else{  
 Toast.makeText(ctxt, result,10).show();  
 }  
 }  
 }  
 public class ASmack {  
 public static String GCONNECT="GCONNECTED";  
 public static XMPPConnection gconn;  
 public static String connectGServer(String user,String pass){  
 String host="talk.google.com";  
 int port=5222;  
 String service="gmail.com";  
 ConnectionConfiguration config=new ConnectionConfiguration(host,port,service);  
 gconn=new XMPPConnection(config);  
 SASLAuthentication.supportSASLMechanism("PLAIN", 0);  
 config.setDebuggerEnabled(true);  
 try {  
 gconn.connect();  
 Log.i("Host", gconn.getHost());  
 gconn.login(user, pass);  
 } catch (XMPPException e) {  
 e.printStackTrace();  
 }  
 return GCONNECT;  
 }  
 }