Question

您好我的申请有问题。持有JTextArea的面板与包含menuBar的面板重叠。我想自定义我的GUI应用程序，但无法修复重叠。下面是我的代码：我导入了所有必需的apis。

import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;

public class ClientPanels extends JPanel{

private JMenu fileM, editM, styleM;
private JTextArea textArea;
private JMenuBar menuBar;
private JScrollPane scpane;
private JPanel panel1;
private JPanel panel2;
private JMenuItem aboutI, openI, saveI, cutI, copyI, pasteI,  exitI;
private GridBagConstraints g;

public ClientPanels() {
    initialize();
}

 private void initialize(){
//initializing and setting up my data
setLayout(new GridBagLayout());

    textArea2 = new JTextArea(40, 50);
    JScrollPane scpane = new JScrollPane(textArea2);
    panel1 = new JPanel(new BorderLayout());
    panel2 = new JPanel(new BorderLayout());

    //menuitems
    openI = new JMenuItem("Open");
    saveI = new JMenuItem("Save");
    exitI = new JMenuItem("Exit");

    copyI = new JMenuItem("Copy");
    pasteI = new JMenuItem("Paste");
    aboutI = new JMenuItem("About");

    fileM = new JMenu("File");
    editM = new JMenu("Edit");
    styleM = new JMenu("Style");

    fileM.add(openI);
    fileM.add(saveI);
    fileM.add(aboutI);
    fileM.add(exitI);

    editM.add(copyI);
    editM.add(pasteI);

    //adding the menu to the menuBars
    menuBar = new JMenuBar();
    menuBar.add(fileM);
    menuBar.add(editM);
    menuBar.add(styleM);

    panel1.add(menuBar,BorderLayout.NORTH);
    panel2.add(scpane, BorderLayout.CENTER);


    //adding the sub-panels to the main panel
    addComp(panel1,0,0,0.5,0.0,0,0,GridBagConstraints.NORTHEAST,GridBagConstraints.HORIZONTAL);
    addComp(panel2,4,1,3,10,0,10, GridBagConstraints.WEST, GridBagConstraints.NONE);

}
//adding components to panel using GridBagLayout as the layout manager
 private void addComp(JPanel panel, int Xpos, int Ypos, double wx,double wy,
                    int compWidth, int compHeight, int place, int stretch)
 {
    GridBagConstraints g = new GridBagConstraints();
    g.gridx = Xpos;
    g.gridy = Ypos;
    g.weightx = wx;
    g.weighty= wy;
    g.gridwidth = compWidth;
    g.gridheight = compHeight;
    g.insets = new Insets(5,5,5,5);
    g.anchor = place;
    g.fill = stretch;

    add(panel, g);
 }

}

主要方法：

import javax.swing.SwingUtilities;


 public class TestJavaClient {
    private ClientPanels panels;
     public TestJavaClient()
  { 
      JFrame frame = new JFrame();
      panels = new ClientPanels();

     frame.setSize(800,590);
     frame.setLocationRelativeTo(null);
     frame.add(panels);
     frame.pack();
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     frame.setVisible(true);

  }

public static void main(String[] args) {


    SwingUtilities.invokeLater(new Runnable(){
        public void run()
        {
            new TestJavaClient();
        }
    });

  }
}

Answer 1

变化：

panel1.add(menuBar,BorderLayout.NORTH);

类似的东西（你需要重构代码）：

frame.setJMenuBar(menuBar);

但正如评论中所提到的，MCVE会得到更好的答案。

GridBagLayout的问题：TextArea与MenuBar重叠

1 个答案: