online log book: Progress Bar di Java Eclipse [Swing]

Pada saat kita mengunduh ataupun mengunggah sering kita lihat adanya proses transfer data. Nah kali ini penulis akan membahas bagaimana cara membuatnya di java eclipse. Proses ini dinamakan progress bar.

Tampilan awal progress bar sebelum tombol Mulai ditekan

Tampilan progress bar ketika tombol Mulai ditekan

Tampilan progress bar ketika selesai mengunduh

Progress bar terdapat pada Swing Component, dibawah ini source code untuk membuatnya. Semoga bermanfaat.

source code:

import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.JButton;
import javax.swing.Timer;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JLabel;
import javax.swing.JProgressBar;
import java.awt.Point;
import java.awt.Dimension;

public class ubah extends JFrame {

private static final long serialVersionUID = 1L;
 private JPanel jContentPane = null;
 private JProgressBar jProgressBar = null;
 private JButton jButtonStart = null;
 final static int interval = 1000;
 int i;
 Timer timer;
 private JLabel status = null;
 /**
 * This method initializes jProgressBar 
 * 
 * @return javax.swing.JProgressBar 
 */
 private JProgressBar getJProgressBar() {
 if (jProgressBar == null) {
 jProgressBar = new JProgressBar(0, 200);
 jProgressBar.setLocation(new Point(30, 47));
 jProgressBar.setSize(new Dimension(200, 28));
 jProgressBar.setStringPainted(true); //Menampilkan persen progress bar
 timer = new Timer(interval, new ActionListener()
 {
 public void actionPerformed(ActionEvent evt) {
 if (i == 200)
 {
 timer.stop();
 jButtonStart.setEnabled(true);
 jProgressBar.setValue(0);
 String str = "<html>" + "" + "" + "Mengunduh Selesai" + "" + "" + "</html>";
 status.setText(str);
 
 }
 i = i + 10; // nilai untuk progress bar
 jProgressBar.setValue(i); 
 }
 });
 }
 return jProgressBar;
 }

/**
 * This method initializes jButtonStart 
 * 
 * @return javax.swing.JButton 
 */
 private JButton getJButtonStart() {
 if (jButtonStart == null) {
 jButtonStart = new JButton();
 jButtonStart.setSize(new Dimension(73, 24));
 jButtonStart.setText("Mulai");
 jButtonStart.setLocation(new Point(30, 19));
 jButtonStart.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent e) {
 System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()
 jButtonStart.setEnabled(false);
 status.setVisible(true);
 i = 0;
 String str = "<html>" + "" + "" + "Sedang Mengunduh....." + "" + "" + "</html>";
 status.setText(str);
 timer.start();
 }
 });
 }
 return jButtonStart;
 }

/**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  SwingUtilities.invokeLater(new Runnable() {
  public void run() {
    ubah thisClass = new ubah();
    thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    thisClass.setVisible(true);
   }
  });
 }

/**
  * This is the default constructor
  */
 public ubah() {
  super();
  initialize();
  status.setVisible(false);
 }

/**
  * This method initializes this
  * 
  * @return void
  */
 private void initialize() {
  this.setSize(276, 140);
  this.setContentPane(getJContentPane());
  this.setTitle("Progress Bar [By Sani]");
 }

/**
  * This method initializes jContentPane
  * 
  * @return javax.swing.JPanel
  */
 private JPanel getJContentPane() {
  if (jContentPane == null) {
   status = new JLabel();
   status.setText("Status");
   status.setLocation(new Point(30, 80));
   status.setSize(new Dimension(200, 16));
   jContentPane = new JPanel();
   jContentPane.setLayout(null);
   jContentPane.add(getJProgressBar(), null);
   jContentPane.add(getJButtonStart(), null);
   jContentPane.add(status, null);
  
  }
  return jContentPane;
 }

}  //  @jve:decl-index=0:visual-constraint="10,10"

online log book

Progress Bar di Java Eclipse [Swing]

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