两个 Split pane 放置在一个 tabpane 上

Question

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.JList;
import javax.swing.JSplitPane;
import javax.swing.JLabel;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.util.ArrayList;
import java.util.List;
import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.event.ListSelectionEvent;


public class MenuPage extends JFrame{

    final static int extraWindowWidth = 100;

    JSplitPane jSplitPane, jSplitPane2,jSplitPane3,jSplitPane4;
    JPanel jPanel2a, jPanel2b, jPanel3;

    public static JFrame frame; 

    public MenuPage(){
    }

    private final JList<String> list1=new JList<>(new String[]{"A","B"});
    private final JList<String> list2 = new JList<>();
    private final List<DefaultListModel> models = new ArrayList<>();



    public void addComponentToPane(Container pane) {
        JTabbedPane tabbedPane = new JTabbedPane();



        // Create the "cards".
        JPanel card1 = new JPanel() {
            // Make the panel wider than it really needs, so
            // the window's wide enough for the tabs to stay
            // in one row.
            public Dimension getPreferredSize() {
                Dimension size = super.getPreferredSize();
                size.width += extraWindowWidth;
                return size;
            }
        };


         DefaultListModel<String> model1 = new DefaultListModel<>();
            model1.addElement("A1");
            model1.addElement("A2");
            model1.addElement("A3");
            models.add(model1);
            DefaultListModel<String> model2 = new DefaultListModel<>();
            model2.addElement("B1");
            model2.addElement("B2");
            models.add(model2);
            list2.setModel(model1);
            list1.addListSelectionListener((ListSelectionEvent e) -> {
                if (!e.getValueIsAdjusting()) {
                    list2.setModel(models.get(list1.getSelectedIndex()));
                }
            });






        jPanel2a = new JPanel();
        jPanel2b = new JPanel();
        jPanel3 = new JPanel();







        jSplitPane2 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, jPanel2a, jPanel2b);





        jSplitPane3 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, list1, list2);
        jSplitPane4 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,jSplitPane3,jPanel3);




        // panelin icerisine component eklendi
        JLabel lblHelloWorld = new JLabel("Hello World!");
        jPanel2a.add(lblHelloWorld);

        jSplitPane2.setOneTouchExpandable(true);
        jSplitPane2.setDividerLocation(100);


        jSplitPane3.setOneTouchExpandable(true);
        jSplitPane3.setDividerLocation(150);


        jSplitPane4.setOneTouchExpandable(true);
        jSplitPane4.setDividerLocation(300);



        JPanel card3 = new JPanel();
        JPanel card4 = new JPanel();
        JPanel card5 = new JPanel();
        JPanel card6 = new JPanel();
        JPanel card7 = new JPanel();
        JPanel card8 = new JPanel();



        card3.add(jSplitPane3,jSplitPane4);


        tabbedPane.addTab("Main", jSplitPane2);

        tabbedPane.addTab("Leagues",jSplitPane4);


        tabbedPane.addTab("Teams",card3 );
        tabbedPane.addTab("Ratios", card4);
        tabbedPane.addTab("Competitions", card5);
        tabbedPane.addTab("Analyze", card6);
        tabbedPane.addTab("Help", card7);
        tabbedPane.addTab("About", card8);

        pane.add(tabbedPane, BorderLayout.CENTER);


    }

    /**
     * Create the GUI and show it. For thread safety, this method should be
     * invoked from the event dispatch thread.
     */

    public static void createAndShowGUI() {
        // Create and set up the window.
        frame = new JFrame("BetAnalyzer");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(594, 310);

        // Create and set up the content pane.
        MenuPage demo = new MenuPage();
        demo.addComponentToPane(frame.getContentPane());

        // Display the window.
        frame.pack();
        frame.setVisible(true);
        frame.setBounds(100, 100, 635, 251);

    }
}

我希望第 2 部分 JSplitPane 中的 list1、list2 和 jpanel3 出现在联赛选项卡中我的代码有问题。只有 jSplitPane3 或 jSplitPane4 可以出现在布局中。

此外，我尝试将两个 JSplitPane 添加到 Box 中，然后将 Box 放入 tabbedpane 中，但这也不起作用。

Answer 1

您的代码有几个问题。

不无故继承

您的 class 继承自 JFrame 但它不会扩展其行为（它不会覆盖 public 或 JFrame 的受保护方法）。

组件只能添加一次

与其他观点相反，这本身不是问题，而是您问题的一部分。

 jSplitPane4 = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,jSplitPane3,jPanel3);
 // ...     
 card3.add(jSplitPane3,jSplitPane4);

当执行第二条语句时，jSplitPane3 将从 jSplitPane4 中删除，仅显示为 card3.

的内容

使用标准布局

您的面板的（虚拟）内容相当小，因此它们的 preferedSize 少于父容器中可用的 space。

JPanels 默认布局是 FlowLayout，它将每个组件减少到 preferedSize。

您应该将 JPanel 的布局设置为 BorderLayout，这样它的内容就可以延伸到整个 space。

反过来你不能使用 JPanels varag 方法 .add(Component, component) 再也没有了。

两个 Split pane 放置在一个 tabpane 上

Two Split pane place on a tabpane

java

swing

jtabbedpane

jsplitpane

不无故继承

组件只能添加一次

使用标准布局