How to display gauge progress refer to HTTP connection time taken

Question

Hi,
I would like to know how can I display the gauge progress depend on the HTTP connection time taken.
I have the source code below but it can't show the gauge progress parallel to the HTTP connection working.
That's kind of those who solve me this problem.
Source code:
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
import javax.microedition.io.*;
import java.util.*;
public class HttpExample extends MIDlet implements CommandListener
     private Gauge gauge;
     private Command exit, start;
     private Display display;
     private Form form;
     long AUD, CAN;
     public HttpExample()
          display = Display.getDisplay(this);
          exit = new Command("Exit", Command.EXIT, 1);
          start = new Command("Start", Command.EXIT, 1);
          form = new Form("");
          gauge = new Gauge("Updating Currency Rate", false, 100, 0);
          form.append(gauge);
          form.addCommand(exit);
          form.addCommand(start);
          form.setCommandListener(this);
          display.setCurrent(form);
     public void startApp() throws MIDletStateChangeException
          display.setCurrent(form);
     public void pauseApp()
     public void destroyApp(boolean unconditional)
     public void commandAction(Command command, Displayable displayable)
          if (command==exit)
               destroyApp(false);
               notifyDestroyed();
          else if(command==start)
               Updater updater = new Updater(this);
               updater.start();
     class Updater implements Runnable
     private HttpExample MIDlet;
     public Updater(HttpExample MIDlet)
          this.MIDlet=MIDlet;
     public void run()
          try
               transmit();
          catch (Exception error)
               System.err.println(error.toString());
     public void start()
          Thread thread = new Thread(this);
          try
               thread.start();
          catch (Exception error)
     private void transmit() throws IOException
          StreamConnection connection=null;
          InputStream in= null;
          StringBuffer buffer=new StringBuffer();
          try
               connection=(StreamConnection) Connector.open("http://www.geocities.com/cyfan118/index.html");
               in=connection.openInputStream();
               int ch;
               while ((ch=in.read())!=-1)
                    gauge.setValue(gauge.getValue() + 1);
                    buffer.append((char)ch);
               String line=new String(buffer.toString());
               int p=line.indexOf("AUD");
               int p1=line.indexOf("CAN");
               String a=line.substring(p+4,p+7);
               String b=line.substring(p1+4,p1+7);
               AUD=Long.parseLong(a);
               CAN=Long.parseLong(b);
               buffer=new StringBuffer();
          catch (IOException error)
               Alert alert=new Alert("Error","Cannot connect",null,null);
               alert.setTimeout(Alert.FOREVER);
               alert.setType(AlertType.ERROR);
               display.setCurrent(alert);
}

Answer 1

This code looks like it should work to update the progress during the connection but it is not going to start updating the guage until it has made the connection and is downloading data. If you want to show something on the screen during the time the program is doing Connector.open() you are going to need to have the update code in yet another thread or timer.