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| 稍后调用界面线程 |
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/*
Code from Desktop Java Live Source
URL: http://www.sourcebeat.com/downloads/
*/
import javax.swing.*;
import java.awt.event.ActionEvent;
public class InvokeLaterExample extends JPanel {
private JLabel statusArea;
private DefaultListModel listModel;
public InvokeLaterExample() {
JButton button = new JButton(new LongRunningModelFillAction());
add(button);
JList list = new JList();
this.listModel = new DefaultListModel();
this.listModel.addElement("An Empty List Model");
list.setModel(listModel);
add(new JScrollPane(list));
add(new JLabel("Status:"));
this.statusArea = new JLabel();
add(this.statusArea);
}
private class LongRunningModelFillAction extends AbstractAction {
public LongRunningModelFillAction() {
super("Fill Model");
}
public void actionPerformed(ActionEvent e) {
InvokeLaterExample.this.listModel.removeAllElements();
InvokeLaterExample.this.listModel.addElement("Calculating...");
PopulationRunnable populationRunnable = new PopulationRunnable();
Thread populationThread = new Thread(populationRunnable);
populationThread.start();
}
}
private class PopulationRunnable implements Runnable {
public void run() {
final Object[] values = new Object[100];
for (int i = 1; i <= 100; i++) {
values[i - 1] = "Value" + i;
if ((i % 10) == 0) {
final int progress = i;
SwingUtilities.invokeLater(new Runnable() {
public void run() {
InvokeLaterExample.this.statusArea.setText("Calculated " + progress);
}
});
}
try {
Thread.sleep(50);
} catch (InterruptedException e) {
}
}
SwingUtilities.invokeLater(new Runnable() {
public void run() {
InvokeLaterExample.this.statusArea.setText("");
InvokeLaterExample.this.listModel.removeAllElements();
for (int i = 0; i < values.length; i++) {
InvokeLaterExample.this.listModel.addElement(values[i]);
}
}
});
}
}
public static void main(String[] a){
JFrame f = new JFrame();
f.setDefaultCloseOperation(1);
f.add(new InvokeLaterExample());
f.pack();
f.setVisible(true);
}
}
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