更改选项卡名称

我想通过添加ActionPerformed从弹出菜单中单击“重命名”项来更改选项卡名称，并直接在选项卡上键入新名称。

我找到了这个jTabbedPane.setTitleAt(count, "string here");

但它不是我想要的，这只是将字符串设置为参数传递。

谢谢

Answer 1

通过添加JPopupMenu可以从JTabbedPane确定index和getTitleAt()

 import java.awt.*; import javax.swing.*; import javax.swing.event.*; public class TabPopupDemo extends JFrame { private static final long serialVersionUID = 1L; private JLabel jLabel1; private JLabel jLabel2; private JMenuItem jMenuItem1; private JPopupMenu jPopupMenu1; private JTabbedPane jTabbedPane1; public TabPopupDemo() { setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); setSize(400, 300); setLocationRelativeTo(null); jPopupMenu1 = new JPopupMenu(); jMenuItem1 = new JMenuItem("jMenuItem1"); jTabbedPane1 = new JTabbedPane(); jLabel1 = new JLabel("jLabel1"); jLabel2 = new JLabel("jLabel2"); jPopupMenu1.add(jMenuItem1); jTabbedPane1.addTab(null, jLabel1); jTabbedPane1.addTab(null, jLabel2); getContentPane().add(jTabbedPane1, BorderLayout.CENTER); int tabCount = jTabbedPane1.getTabCount(); for (int i = 0; i < tabCount; i++) { JLabel jLabel = new JLabel("Testing the tab" + (i + 1)); jTabbedPane1.setTabComponentAt(i, jLabel); jLabel.setName(String.valueOf(i)); jLabel.setComponentPopupMenu(jPopupMenu1); } jPopupMenu1.addPopupMenuListener(new PopupMenuListener() { @Override public void popupMenuCanceled(final PopupMenuEvent evt) { } @Override public void popupMenuWillBecomeInvisible(final PopupMenuEvent evt) { } @Override public void popupMenuWillBecomeVisible(final PopupMenuEvent evt) { JPopupMenu source = (JPopupMenu) evt.getSource(); JLabel invoker = (JLabel) source.getInvoker(); JLabel component = (JLabel) jTabbedPane1.getComponentAt(Integer.parseInt(invoker.getName())); jMenuItem1.setText(invoker.getText() + ": " + component.getText()); } }); } public static void main(final String args[]) { EventQueue.invokeLater(new Runnable() { @Override public void run() { new TabPopupDemo().setVisible(true); } }); } }