How to use progressbar with another process ?

Question

Hi guys, i am working on an audio processing project in which i want to implement progressbar.I have two separate classes in which one contains code for GUI and another contains code for the logic when some event occurs in GUI.
I have process button whose click event does the processing of files and attach tags to it.
The processing of files does in another class. I have tried using the progressbar with GUI when user clicks process
it should co-relate with appropriate message like "(Processing 1 of 10 files) " and side by side progress also been shown and when all tags attached to the files completed then it should give finished message on progressbar.
public javax.swing.JProgressBar progressBar;
public TAG{
progressBar = new javax.swing.JProgressBar();
progressBar.setName("progressBar");
this.progressBar.setString("Awaiting User Input");
this.progressBar.setStringPainted(true);
private void processBtnActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_processBtnActionPerformed
        // TODO add your handling code here:
        AudioTagProcessor audioTagProcessor = new AudioTagProcessor();
        FileHelper fh=new FileHelper();
        int mp3Files = fh.getFiles(new File(sourceTxt.getText()), AVLConstants.FILE_TYPE_MP3);
        //setJProgressBar1(jProgressBar1);
        if(mp3Files>0){
            setProgressBarToDisplay(mp3Files);
            processBtn.setEnabled(false);
            timer.start();
            try{
                FileUtils.copyDirectoryToDirectory(new File(sourceTxt.getText()), new File(destnTxt.getText()));
               audioTagProcessor.searchForTags(new File(sourceTxt.getText()), new File(destnTxt.getText()), AVLConstants.FILE_TYPE_MP3, this,progressBar);
                progressBar.setString("Finished Processing "+mp3Files+" of "+mp3Files+" files.");
                addToActivityLog("Processed " + mp3Files + " files of " +AVLConstants.FILE_TYPE_MP3+ " type.");
            }catch(Exception ie){
                ie.printStackTrace();
        }else{
            addToActivityLog("Selected 'Source Folder' does not contain any files of type " + AVLConstants.FILE_TYPE_MP3
                    + ". Please Selected a folder containing files of type "  + AVLConstants.FILE_TYPE_MP3);
        }The addToActivityLog is a text pane where i used to display message.
The AudioTagProcessor is a class where i used to do tag attachment to mp3 file.
The problem comes is that whn i click process button it completes all the tag attachment process and then the progressbar starts and displays message. Is there any way so that i can relate both the processes with each other like when tag is being attached side by side progressbar also increases and give me appropriate message.
Can u plz help me how to do that ?

Answer 1

DarrylBurke wrote:
sureshot324 wrote:
Yeah read the link. Basically how it works is you launch another thread that does the heavy work and updates a variable (usually an int, or define your own Progress class that includes a status message) that keeps track of the progress. You then launch a Timer that checks this variable at a certain interval, say every 200 miliseconds, and updates the progress bar accordingly.Looks like you're not familiar with the JDK 1.6 SwingWorker, with its doInBackground, publish and process methods :-)
dbNope I'll have to look into it. Does it really make it much easier than my method though?