我正在对扫雷游戏进行更改。其中之一就是困难。我已经设法做到这一点及其工作,但是随着游戏板(在它自己的 Jpanel 中)变得越来越大(取决于难度),我无法让 JFrame 自动调整大小。我在用:
setPreferredSize(new Dimension(WIDTH, HEIGHT));
设置窗口的初始大小,但这使它非常小,因为只显示 JMenuBar 中的单词“文件”。我必须手动调整它的大小。
我在 ActionListener 事件上尝试了 setSize() 和 frame.pack() 之类的东西,但我似乎无法调整它的大小。
关于使用什么代码/方法的任何提示。
编辑:发布代码
package mines;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class SetupFrame extends JFrame {
private final int WIDTH = 600;
private final int HEIGHT = 500;
public JFrame frame;
public JMenuBar menubar;
public JMenu file;
public JMenu levels;
public JMenu help;
public JMenuItem login;
public JMenuItem save;
public JMenuItem resume;
public JMenuItem exit;
public JMenuItem easy;
public JMenuItem medium;
public JMenuItem hard;
private JLabel statusbar;
public JPanel main;
public JPanel buttonPanel;
public JPanel saved;
public JPanel game;
public Board mineGame;
public JButton ngButton;
public JButton undoButton;
public JButton redoButton;
public JTabbedPane tp;
public String[] levelPicker;
public JComboBox levelSelect;
public JFileChooser chooser;
public String filename;
public int difficulty;
public SetupFrame(){
frame = new JFrame();
String filename = JOptionPane.showInputDialog(frame, "Enter Your Name.");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setTitle("Minesweeper");
//menubar, menus, menu items
menubar = new JMenuBar();
setJMenuBar(menubar);
file = new JMenu("File");
help = new JMenu("Help");
menubar.add(file);
menubar.add(help);
login = new JMenuItem("Login..");
save = new JMenuItem("Save..");
resume = new JMenuItem("Resume..");
exit = new JMenuItem("Exit");
file.add(login);
file.add(save);
file.add(resume);
file.addSeparator();
file.add(exit);
statusbar = new JLabel("");
chooser = new JFileChooser(); // new File Chooser for saved tab
undoButton = new JButton(" Undo "); //undo Button for game panel
ngButton = new JButton(" New Game ");//new game Button for game panel
redoButton = new JButton(" Redo");//redo Button for game panel
main = new JPanel(new BorderLayout()); //new panel for main game
//main.add(mineGame, BorderLayout.CENTER); //add instance mineGame to main panel
game = new JPanel(new BorderLayout());// new panel for game tab
main.add(game, BorderLayout.CENTER); //add the mineGames panel to game panel
game.add(statusbar, BorderLayout.SOUTH); //add statusbar to bottom of game panel
//game.add(button, BorderLayout.NORTH); // add buttons (eventually be redo, undo, new game)
saved = new JPanel(); // create new panel for the saved tab
saved.add(chooser);//add the File Chooser to the saved tab
String[] levelPicker = {"Easy", "Medium", "Hard"};
levelSelect = new JComboBox(levelPicker);
levelSelect.setSelectedIndex(0);
//levelSelect.addActionListener(this);
buttonPanel = new JPanel();
buttonPanel.add(undoButton);
buttonPanel.add(ngButton);
buttonPanel.add(redoButton);
buttonPanel.add(levelSelect);
main.add(buttonPanel, BorderLayout.NORTH);
//create & add the tabs
tp = new JTabbedPane();
tp.addTab ("Game", main);
tp.addTab ("Saved", saved);
tp.addTab ("Statistics", null);
add(tp);
setPreferredSize(new Dimension(WIDTH, HEIGHT));
setResizable(true);
setVisible(true);
frame.pack();
class listener implements ActionListener{
public void actionPerformed (ActionEvent e)
{
if(e.getSource() == ngButton){
//JOptionPane.showInputDialog(frame, "Do You want To Save");
newMineGame();
}
JComboBox cb = (JComboBox)e.getSource();
String picker = (String)cb.getSelectedItem();
if (picker == "Easy"){
difficulty = 0;
newMineGame();
}
if (picker == "Medium"){
difficulty = 1;
newMineGame();
frame.pack();
}
if (picker == "Hard"){
difficulty = 2;
newMineGame();
frame.pack();
}
}
private void newMineGame() {
game.removeAll();
mineGame = new Board(statusbar, difficulty);
game.add(mineGame, BorderLayout.CENTER);
game.add(statusbar, BorderLayout.SOUTH);
repaint();
}
}
ngButton.addActionListener(new listener());
undoButton.addActionListener(new listener());
redoButton.addActionListener(new listener());
levelSelect.addActionListener(new listener());
}
public static void main(String[] args) {
new SetupFrame();
}