java awt 进度条
2015-06-04 11:54
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下面是可实现awt进度条的完整代码
import java.awt.Container; import java.awt.FlowLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JProgressBar; public class Progressbar extends JFrame{ private static final long serialVersionUID = 1L; private static Progressbar frame; public Progressbar(){ // TODO Auto-generated constructor stub JLabel label = new JLabel("欢迎使用在线升级功能!"); JProgressBar progressBar = new JProgressBar(); JButton button = new JButton("完成"); button.setEnabled(false); Container container = getContentPane(); container.setLayout(new GridLayout(3, 1)); JPanel panel1= new JPanel(new FlowLayout(FlowLayout.LEFT)); JPanel panel2= new JPanel(new FlowLayout(FlowLayout.CENTER)); JPanel panel3= new JPanel(new FlowLayout(FlowLayout.RIGHT)); panel1.add(label); panel2.add(progressBar); panel3.add(button); container.add(panel1); container.add(panel2); container.add(panel3); progressBar.setStringPainted(true); progressBar.setString("升级进行中..."); // progressBar.setIndeterminate(true); new Progress(progressBar, button).start(); button.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub dispose(); System.exit(0); } }); }
private class Progress extends Thread { JProgressBar progressBar; JButton button; int[] progressValues = {6, 18, 27, 39, 51, 66, 81, 100}; Progress(JProgressBar progressBar, JButton button) { this.progressBar = progressBar; this.button = button; } public void run() { for (int i = 0; i < progressValues.length; i++) { try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } progressBar.setValue(progressValues[i]); } progressBar.setIndeterminate(false); progressBar.setString("升级完成!"); button.setEnabled(true); } } /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub frame = new Progressbar(); frame.setTitle("使用进度条"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); } }
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