java - 使用borderlayout将组件添加到框架

如何使用布局获得相同的外观

    package item;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
/**
 *
 * @author isslam
 */
public class MyFrameMain extends JFrame{
    Equipment newq = new Equipment();
    private final JLabel iLabel;
    private final JLabel nLabel;
    private final JTextField iJTextField;
    private final JTextField nJTextField;
    private final JTextField swTextField;
    private final JTextField hwTextField;
    private final JLabel jItemCounter;
    private final JTextArea reSoulte;
    private final JButton addButton;
    private final JButton showButton;
    private final JButton copyButton;
    private final JButton exitButton;

    public MyFrameMain(String title){
    super(title);
    setTitle(title);
    setDefaultCloseOperation(MyFrameMain.EXIT_ON_CLOSE);

    iJTextField = new JTextField();
    nJTextField = new JTextField();
    swTextField = new JTextField();
    hwTextField = new JTextField();
    nLabel = new JLabel("ID: ");
    iLabel = new JLabel("Name: ");
    jItemCounter = new JLabel("Number of current Item");

    reSoulte = new JTextArea(15,20);
    reSoulte.setEditable(false);

    addButton = new  JButton("Add an item into the Array");
    showButton = new JButton("Show all items in the Array");
    copyButton = new JButton("Copy Array into File");
    exitButton = new JButton("Exite");


    JRadioButton rButton1 = new JRadioButton("SW Version",false);
    JRadioButton rButton2 = new JRadioButton("HW Type",false);
    JRadioButton rButton3 = new JRadioButton("General",true);

     ButtonGroup BGroup = new ButtonGroup();
     BGroup.add(rButton1);
     BGroup.add(rButton2);
     BGroup.add(rButton3);

     JPanel panel = new JPanel(new GridLayout(5,1));
     panel.add(nLabel);
     panel.add(iLabel);
     panel.add(rButton1);
     panel.add(rButton2);
     panel.add(rButton3);

     JPanel bpanel = new JPanel(new GridLayout(2,2));
     bpanel.add(addButton);
     bpanel.add(showButton);
     bpanel.add(copyButton);
     bpanel.add(exitButton);

     JPanel jtfPanel = new JPanel(new GridLayout(5,1));
     jtfPanel.add(iJTextField);
     jtfPanel.add(nJTextField);
     jtfPanel.add(swTextField);
     jtfPanel.add(hwTextField);
     jtfPanel.add(jItemCounter);

     JPanel jtaPanel = new JPanel(new GridLayout(5,1));
     jtaPanel.add(reSoulte);

     Container pane = getContentPane();
     pane.setLayout(null);
     pane.add(panel);
     pane.add(bpanel);
     pane.add(jtfPanel);
     pane.add(jtaPanel);



     Insets insets = pane.getInsets();
     setSize(500 + insets.left + insets.right,500 + insets.top + insets.bottom);

     Dimension size = panel.getPreferredSize();
     panel.setBounds(0 + insets.left, 18 + insets.top,size.width, size.height);

     size = bpanel.getPreferredSize();
     bpanel.setBounds(0 + insets.left, 409 + insets.top,115+size.width, size.height);

     size = jtfPanel.getPreferredSize();
     jtfPanel.setBounds(180 + insets.left, 25 + insets.top,170 +size.width, size.height);

     size = jtaPanel.getPreferredSize();
     jtaPanel.setBounds(0 + insets.left, 150 + insets.top,265 +size.width, size.height);


     exitButton.addActionListener(new ButtonWatcher());

    }

     private class ButtonWatcher implements ActionListener{

         public void actionPerformed(ActionEvent a){
             System.exit(0);
        }
     }
}

最佳答案

你能告诉我如何将绝对位置替换为borderlayout


我看到您的代码的方式：


“面板”显示在左上方
“ jtfPanel”显示在右上角
中间显示“ jtaPanel”
“ bPanel”显示在底部


BorderLayout具有3个垂直区域，可与NORTH，CENTER和SOUTH一起使用，因此我建议您将“ panel”和“ jtfPanel”组合到另一个面板中，然后将3个面板添加到BorderLayout中。就像是：

JPanel north = new JPanel( new BorderLayout() );
north.add(panel, BorderLayout.WEST);
north.add(jtfPanel, BorderLayout.CENTER);

Container contentPane = getContentPane();
contentPane.add(north, BorderLayout.NORTH);
contentPane.add(jtaPanel, BorderLayout.CENTER);
contentPane.add(bPanel, BorderLayout.SOUTH);

要点是，您可以嵌套多个面板以达到所需的效果。

关于java - 使用borderlayout将组件添加到框架，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20444414/