Pause in Swing Applet

[Billy Jean]

I'm trying to use Thread.sleep(1000) in a swing applet but its not working the way I want. I read that I have to use the javax.swing.timer class. I've read several tutorials on this, but I still can't seem to get it to work. Is there an easy way I can use javax.swing.timer or anything else to emulate the Thread.sleep(1000) functionality? Thank you.

 
        for(int j=1; j<11; j++){
             if(!playersArr[j].name.equals("")){
                 seatCarda[j].setIcon(new ImageIcon(cardsUrl));
                 seatCarda[j].setEnabled(true);
       
                 Thread.sleep(1000);
       
                 seatCardb[j].setIcon(new ImageIcon(cardsUrl));
                 seatCardb[j].setEnabled(true);
           }
       }

Basically I need something like this, except thread.sleep doesnt work. How can I implement this with a swing timer or some other way? Thank You.



I tried declaring the following timer in my applet's init method:

javax.swing.Timer flipTimer = new javax.swing.Timer(
        1000,
        new ActionListener() {
            public void actionPerformed(ActionEvent e) {
 
               jLabel1.setText("ssdadasds");
               flipTimer.stop();
 
            }
         }
      );

and then I call flipTimer.start(); in the actionPerformed method, however this doesnt cause jLabel1 to be set. What am I doing wrong?

[Michael Dunn]

are you adding the label to the applet?

[Billy Jean]

yes I am

[Michael Dunn]

this works OK, compare to see what's different

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TestApplet extends JApplet
{
  javax.swing.Timer flipTimer;
  public void init()
  {
    JPanel panel = new JPanel();
    final JLabel lbl = new JLabel();
    panel.add(lbl);
    getContentPane().add(panel);
    flipTimer = new javax.swing.Timer(2000,new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        lbl.setText("ssdadasds");
        flipTimer.stop();}});
  }
  public void start()
  {
    flipTimer.start();
  }
}

[Billy Jean]

whenever I place flipTimer.start() in the public void start() method, the applet fails to load completly, when I place it in the actionperformed method, it doesnt do anything.


Heres what I have:

public class myapp extends JApplet {
JLabel jLabel1 = null;
javax.swing.Timer flipTimer;
        
        public void init(){
             jLabel1 = new JLabel();
             
             this.getContentPane().setBackground(Color.white);
             this.setSize(new Dimension(854, 644));
             this.getContentPane().setLayout(null);
             this.getContentPane().add(jLabel1);
 
             flipTimer = new javax.swing.Timer(1500, new ActionListener() {
            public void actionPerformed(ActionEvent e) {
               jLabel1.setText("ssdadasds");
               flipTimer.stop();
               
            }
        }
           );        
        
        }
    public void start() {
    flipTimer.start();
    }
}

this causes the applet to not even load, the java console gives the following error:

java.lang.IllegalArgumentException: Listener myapp$1
 
[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=8388608,maxim
 
umSize=,minimumSize=,preferredSize=,defaultIcon=,disabledIcon=,horizontalAl
 
ignment=LEADING,horizontalTextPosition=TRAILING,iconTextGap=4,labelFor=,tex
 
t=,verticalAlignment=CENTER,verticalTextPosition=CENTER] is not of type 
 
interface java.awt.event.ActionListener
at javax.swing.event.EventListenerList.add(Unknown Source)
 
at javax.swing.Timer.addActionListener(Unknown Source)
at javax.swing.Timer.<init>(Unknown Source)
at myapp.init(myapp.java:286)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
 

Any suggestions? thanks

[ August 30, 2005: Message edited by: Billy Jean ]
[ August 30, 2005: Message edited by: Billy Jean ]

[Michael Dunn]

comment out this line and see how you go

//this.getContentPane().setLayout(null);