我有一个 JFrame,我需要在我喜欢的地方添加面板,但我不知道该怎么做。我已经尝试了所有的布局,但我无法得到我想要的。
基本上 FunProgramming 是主框架,我需要该框架上的其他 3 个面板。我需要一个在中间/右边。我需要在左侧放置一个面板,在底部放置一个面板,并在框架上方约 1/3 处放置一个面板。在尝试了不同的布局管理器之后,我不知道如何去做这个(也很抱歉,我似乎无法分开这两个类,第一个类现在缺少一个 {)
import java.awt.BorderLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
public class FunProgrammingFrame {
private JFrame frame;
private JMenuBar menuBar;
private JMenu menu;
private JMenuItem menuItem;
private final String M_ITEM_ONE = "File", M_ITEM_TWO = "Project", M_ITEM_THREE = "Help", ITEM_ONE = "New", ITEM_TWO = "Open", ITEM_THREE = "Save", ITEM_FOUR = "Quit";
public FunProgrammingFrame(){
ConsolePanel consolePanel = new ConsolePanel();
frame = new JFrame("Fun Programming");
frame.setLayout(new GridBagLayout());
//frame.add(consolePanel, BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setExtendedState(JFrame.MAXIMIZED_BOTH);
menuBar = new JMenuBar();
createMenu(M_ITEM_ONE);
addMenuItem(ITEM_ONE);
menuItem.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
addMenuItem(ITEM_TWO);
menuItem.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
addMenuItem(ITEM_THREE);
menuItem.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
menu.addSeparator();
addMenuItem(ITEM_FOUR);
menuItem.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
System.exit(0);
}
});
createMenu(M_ITEM_TWO);
createMenu(M_ITEM_THREE);
//addPanel(consolePanel, 10, 10, GridBagConstraints.SOUTH);
frame.setVisible(true);
}
public void createMenu(String name){
menu = new JMenu(name);
menuBar.add(menu);
frame.setJMenuBar(menuBar);
}
public JMenuItem addMenuItem( String itemName) {
menuItem = new JMenuItem(itemName);
menu.add(menuItem);
return menuItem;
}
public static void main(String[] args){
FunProgrammingFrame fp = new FunProgrammingFrame();
}
}
import java.awt.BorderLayout;
import java.awt.Color;
import javax.swing.JPanel;
public class ConsolePanel extends JPanel{
private JPanel Cpanel;
private final int WIDTH = 100, HEIGHT = 500;
public ConsolePanel(){
Cpanel = new JPanel(new BorderLayout());
Cpanel.setSize(WIDTH, HEIGHT);
Cpanel.setVisible(true);
setBackground(Color.BLACK);
}
}
链接到我需要的/image/9aibx.jpg 目前不需要侧面的按钮
最佳答案
类似...
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.LineBorder;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new ContentPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class ContentPane extends JPanel {
public ContentPane() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.BOTH;
gbc.weighty = 0.7;
add(new TestPane(Color.RED), gbc);
gbc.weightx = 1;
gbc.fill = GridBagConstraints.BOTH;
gbc.gridx++;
add(new TestPane(Color.BLUE), gbc);
gbc.gridy = 1;
gbc.gridx = 0;
gbc.weighty = 0.3;
gbc.weightx = 1;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.fill = GridBagConstraints.BOTH;
gbc.anchor = GridBagConstraints.NORTH;
add(new TestPane(Color.GREEN), gbc);
}
}
public class TestPane extends JPanel {
public TestPane(Color color) {
setBorder(new LineBorder(color));
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
}
}
关于java - 简单 JPanel 的问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28667082/