请看下面的代码。
package normal;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainForm extends JFrame implements ComponentListener
{
private JTabbedPane tab;
private InsertForm insertForm;
private UpdateDeleteForm updateDelete;
private SearchForm searchForm;
public MainForm()
{
tab = new JTabbedPane();
insertForm = new InsertForm();
updateDelete = new UpdateDeleteForm();
searchForm = new SearchForm();
//Creating the main window
tab.add(insertForm,"Insert");
tab.add(updateDelete,"Update/Delete");
tab.add(searchForm,"Search");
tab.addChangeListener(new TabChangeWork());
getContentPane().add(tab);
// this.setSize(500,500);
this.setTitle("My Phone Book App");
this.setResizable(false);
this.pack();
this.validate();
this.setLocationRelativeTo(null);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
@Override
public void componentResized(ComponentEvent e) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void componentMoved(ComponentEvent e)
{
System.out.println("X Location: "+this.getX());
}
@Override
public void componentShown(ComponentEvent e) {
throw new UnsupportedOperationException("Not supported yet.");
}
@Override
public void componentHidden(ComponentEvent e) {
throw new UnsupportedOperationException("Not supported yet.");
}
private class TabChangeWork implements ChangeListener
{
@Override
public void stateChanged(ChangeEvent e)
{
JTabbedPane tabSource = (JTabbedPane)e.getSource();
int index = tabSource.getSelectedIndex();
System.out.println("Tab Changed to: "+tabSource.getTitleAt(index));
if(tabSource.getTitleAt(index).equals("Update/Delete"))
{
updateDelete.addNames();
}
}
}
}
在这里,ComponentListener 无法正常工作,因为“ComponentMoved”方法中的操作没有发生。如果它被移动,我正在尝试获取 JFrame 的新坐标。为什么它不工作?请帮忙!!