如何讓雙線在JTabbedPane中

Question

我不知道有多少的意義我的標題確實，但因爲你是想有稍微的好標題，這是最好的我想出了，所以我其實意思是...

讓我們從理論上說，我有10個標籤，而不是讓它們都在1號線，我想他們在2分割壓縮在一起，所以我對5個標籤上部和5下部。 示例圖：

Answer 1

並不清楚你的問題，但也有標籤的基本方法JTabbedPane的

import javax.swing.*; 
import java.awt.*; 
import java.awt.event.ActionListener; 
import java.awt.event.ActionEvent; 
import java.awt.event.InputEvent; 
import java.awt.event.KeyEvent; 

public class TabComponentsDemo extends JFrame { 

    private static final long serialVersionUID = 1L; 
    private final int tabNumber = 15; 
    private final JTabbedPane pane = new JTabbedPane(); 
    private JMenuItem tabComponentsItem; 
    private JMenuItem scrollLayoutItem; 

    public TabComponentsDemo(String title) { 
     super(title); 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     initMenu(); 
     add(pane); 
    } 

    public void runTest() { 
     pane.removeAll(); 
     for (int i = 0; i < tabNumber; i++) { 
      String title = "Tab " + i; 
      pane.add(title, new JLabel(title)); 
      //initTabComponent(i); 
     } 
     tabComponentsItem.setSelected(true); 
     pane.setTabLayoutPolicy(JTabbedPane.WRAP_TAB_LAYOUT); 
     scrollLayoutItem.setSelected(false); 
     setSize(new Dimension(400, 200)); 
     setLocationRelativeTo(null); 
     setVisible(true); 
    } 

    /*private void initTabComponent(int i) { 
    pane.setTabComponentAt(i, new ButtonTabComponent(pane)); 
    }*/ 
    private void initMenu() {//Setting menu 
     JMenuBar menuBar = new JMenuBar();//create Options menu   
     tabComponentsItem = new JCheckBoxMenuItem("Use TabComponents", true); 
     tabComponentsItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_T, InputEvent.ALT_MASK)); 
     tabComponentsItem.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       for (int i = 0; i < pane.getTabCount(); i++) { 
        if (tabComponentsItem.isSelected()) { 
         //initTabComponent(i); 
        } else { 
         pane.setTabComponentAt(i, null); 
        } 
       } 
      } 
     }); 
     scrollLayoutItem = new JCheckBoxMenuItem("Set ScrollLayout"); 
     scrollLayoutItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.ALT_MASK)); 
     scrollLayoutItem.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       if (pane.getTabLayoutPolicy() == JTabbedPane.WRAP_TAB_LAYOUT) { 
        pane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT); 
       } else { 
        pane.setTabLayoutPolicy(JTabbedPane.WRAP_TAB_LAYOUT); 
       } 
      } 
     }); 
     JMenuItem resetItem = new JMenuItem("Reset JTabbedPane"); 
     resetItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_R, InputEvent.ALT_MASK)); 
     resetItem.addActionListener(new ActionListener() { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       runTest(); 
      } 
     }); 
     JMenu optionsMenu = new JMenu("Options"); 
     optionsMenu.add(tabComponentsItem); 
     optionsMenu.add(scrollLayoutItem); 
     optionsMenu.add(resetItem); 
     menuBar.add(optionsMenu); 
     setJMenuBar(menuBar); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       UIManager.put("swing.boldMetal", Boolean.FALSE); 
       new TabComponentsDemo("TabComponentsDemo").runTest(); 
      } 
     }); 
    } 
} 

Answer 2

如果你想他們都在單行（我認爲這是你的描述的後半部分表明...）顯示，你要的標籤佈局策略設置爲JTabbedPane.SCROLL_TAB_LAYOUT。

這裏有一個example用圖像。