swingworker

Dynamically adding rows to JTable - Why do they appear at once?

て烟熏妆下的殇ゞ 提交于 2019-11-28 10:25:10
问题 In the example, I'm seeking to add a table to my GUI and then dynamically add rows to it (to show the progress). What I don't understand is why all the rows are appearing at once. I mean, the the table's changing, isn't it? Can someone please give me an explanation? import java.awt.Component; public class Main { public static void main(String[] args) { // Show GUI java.awt.EventQueue.invokeLater(new Runnable() { public void run() { GUI gui = new GUI(); gui.setVisible(true); DefaultTableModel

Basic Indeterminate JProgress Bar Usage

痴心易碎 提交于 2019-11-28 03:52:35
问题 I simply want to have an indeterminate JProgressBar animate in the bottom left corner of my frame when a long download is being done. I've looked through many tutorials, none of which are clear to me. I simply want to have it animate while the file is being downloaded in the background. Each way I've tried this, it doesn't animate the progress bar until after the download is done. I need help knowing where to place my download() call. class MyFunClass extends JFrame { JProgressBar progressBar

Swing Worker Threads Not Concurrent

纵然是瞬间 提交于 2019-11-28 01:57:12
It seems that when I instantiate 12 Swing Worker threads, the first six starts to complete its task, it finishes AND then the last six starts and finishes. The behavior I'm looking for is all 12 threads start working at the same time & finish at the same time. I have the following: for (int i = 0; i < 12; i++ ) { myTask m = new Mytask(i, START); m.execute(); } The myTask m will increment a progress bar from 0 - 100 in increments of 25. I'm getting outlandish behavior that the first six threads start incrementing, they finish at 100, then the last six threads start from 0 and increment, and

Why does SwingWorker stop unexpectedly?

萝らか妹 提交于 2019-11-28 01:54:44
I wanted to try out some ideas using SwingWorker since I haven't used it too much. Instead, I ran into an issue and I can't figure out what's wrong. Here's a short SSCCE that demonstrates this problem (I know people here like SSCCEs): import javax.swing.SwingUtilities; import javax.swing.SwingWorker; public class SwingWorkerTest { public static void main (String[] args) { SwingUtilities.invokeLater (new Runnable () { @Override public void run () { new MySwingWorker (500).execute (); new MySwingWorker (900).execute (); new MySwingWorker (1200).execute (); } }); } } class MySwingWorker extends

Need to have JProgress bar to measure progress when copying directories and files

懵懂的女人 提交于 2019-11-28 01:32:49
问题 I have the below code to copy directories and files but not sure where to measure the progress. Can someone help as to where can I measure how much has been copied and show it in the JProgress bar public static void copy(File src, File dest) throws IOException{ if(src.isDirectory()){ if(!dest.exists()){ //checking whether destination directory exisits dest.mkdir(); System.out.println("Directory copied from " + src + " to " + dest); } String files[] = src.list(); for (String file : files) {

SwingWorker: when exactly is called done method?

孤人 提交于 2019-11-27 20:35:43
Javadoc of the done() method of SwingWorker: Executed on the Event Dispatch Thread after the doInBackground method is finished. I've clues that it is not true in the case of canceled worker. Done is called in each case (normal termination or cancellation) but when cancelled it is not enqueued to the EDT, as it happens for normal termination. Is there some more precise analisis on when done is called in the case that a SwingWorker is cancelled? Clarification: this question is NOT on how to cancel a SwingWorker . Here it is assumed that the SwingWorker is cancelled in the right way. And it is

Execute process in Java without JFrame freezing

蹲街弑〆低调 提交于 2019-11-27 16:31:00
how can I execute a process in Java without the program freezing? I've tried using SwingWorker, but I don't quite yet understand how it works. Is there any other way I can accomplish this? I'm wanting to use something like this in my JDroidLib. For full source code, check out the GitHub: http://github.com/Team-M4gkBeatz/JDroidLib Thanks in advance! EDIT: Thanks for your answers. But I have a class with several methods (well, it's more than one class, but you get my point); how can I use a SwingWorker to interact with those? Here is one of the classes: /** * * @author Simon */ public abstract

Can't get JProgressBar to update from SwingWorker class

女生的网名这么多〃 提交于 2019-11-27 09:51:52
I have my main GUI thread which has a JprogressBar in it and is implementing ProprtyChangeListener. When a button is pressed, a different class, which extends SwingWorker, kicks into action and performs a series of potentially long calculations. I need the progress bar in class A to present the progress according to a variable in Class B. My code is below (could be a bit messy with all my failed tries...) Would appreciate any help. GUI CLASS: SignalSimulator signalSimulator = new SignalSimulator( path, numOfdataPoints, numOfLocalSpikes, numOfExpSpikes, noiseAmp, slope, offset, rdbtnSineWave

How to use SwingWorker?

喜你入骨 提交于 2019-11-27 09:46:55
Friends, i am developing a java application. Thats for performance monitoring. on that i am getting values in one class and drawing a graph in another class. i want to use swingworker to perform those two class alternatively. ResultSet rs; Connection conn = null; conn = (Connection)getMySqlConnection(); Statement st = conn.createStatement(); rs = st.executeQuery("SHOW GLOBAL STATUS"); while(rs.next()) { Map_MySql.put(rs.getString(1), rs.getString(2)); } conn.close(); Above class for collecting server status and store it in hash map. this class called as "MySQLClass". System.out.println("Graph

Stop/cancel SwingWorker thread?

依然范特西╮ 提交于 2019-11-27 09:24:12
I'm trying to find out how to stop a SwingWorker thread from running when I press a button. I have been looking around and I'm having some trouble working out how to do this. At the moment this is what I have: new MySwingWorkerClass(args).execute(); I'm then creating a button which I want to use in order to stop the thread: button = new JButton("Stop"); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { // Stop the swing worker thread } }); I have already looked around in search of an answer, so far I have managed to find the cancel method. I don't