我正在尝试创建一个运行猜谜游戏的GUI,但是使用GridBagLayout卡住了。问题在于我的JFrame中的JPanel大小。
我已经写了一个类似的程序,可以很好地工作,并且不理解为什么一个有效而另一个无效。
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.util.*;
public class GuessGame {
private static JTextField inputBox;
GuessGame(){}
public static void main(String[] args) {
createWindow();
}
private static void createWindow() {
JFrame frame = new JFrame("GuessingGame");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
createUI(frame);
frame.setSize(600, 600);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static void createUI(JFrame frame) {
JPanel panel = new JPanel();
GridBagLayout layout = new GridBagLayout();
panel.setLayout(layout);
GuessGame guessingGame = new GuessGame();
GridBagConstraints gbc = new GridBagConstraints();
inputBox = new JTextField(10);
inputBox.setEditable(false);
JLabel title = new JLabel("FUN FUN Guessing Game");
JLabel entryBoxLabel = new JLabel("Entry Box: ");
JLabel statsOptions = new JLabel("Statistics Options");
JLabel message = new JLabel("HAVE FUN!!!");
JButton startGame = new JButton("START");
JButton clearDisplay = new JButton("CLEAR");
JButton displayStats = new JButton("STATS");
JCheckBox bestTime = new JCheckBox("Best Time");
JCheckBox bestPlays = new JCheckBox("Best # of Plays");
JCheckBox bestPlayer = new JCheckBox("Best Player");
JTextArea displayArea = new JTextArea(300, 300);
JScrollPane scrollWrap = new JScrollPane(displayArea);
gbc.anchor = GridBagConstraints.ABOVE_BASELINE;
gbc.gridx = 0; gbc.gridy = 0; panel.add(title, gbc);
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridx = 0; gbc.gridy = 1; panel.add(startGame, gbc);
gbc.fill = GridBagConstraints.WEST;
gbc.gridx = 1; gbc.gridy = 1; panel.add(entryBoxLabel, gbc);
gbc.fill = GridBagConstraints.LINE_END;
gbc.gridx = 1; gbc.gridy = 1; panel.add(inputBox, gbc);
gbc.fill = GridBagConstraints.NONE;
gbc.gridx = 0; gbc.gridy = 2; panel.add(displayArea, gbc);
gbc.gridx = 1; gbc.gridy = 2; panel.add(scrollWrap, gbc);
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridx = 0; gbc.gridy = 3; panel.add(clearDisplay, gbc);
gbc.anchor = GridBagConstraints.NORTH;
gbc.gridx = 1; gbc.gridy = 3; panel.add(statsOptions, gbc);
gbc.anchor = GridBagConstraints.SOUTHWEST;
gbc.gridx = 1; gbc.gridy = 3; panel.add(bestTime, gbc);
gbc.anchor = GridBagConstraints.SOUTH;
gbc.gridx = 1; gbc.gridy = 3; panel.add(bestPlays, gbc);
gbc.anchor = GridBagConstraints.SOUTHEAST;
gbc.gridx = 1; gbc.gridy = 3; panel.add(bestPlayer, gbc);
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridx = 0; gbc.gridy = 4; panel.add(displayStats, gbc);
gbc.gridx = 1; gbc.gridy = 4; panel.add(message, gbc);
frame.getContentPane().add(panel, BorderLayout.CENTER);
}
}
我期待的是这样的东西:
但是我得到的是这个:
帮助
答案 0 :(得分:0)
使用GridBad的感觉,我更喜欢使用BoxLayout。这是我解决您问题的方法。这是最接近使用Swing发布的图像的方法。
import java.awt.*;
import javax.swing.*;
public class Test {
public static void main(String[] args){
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI();
}
});
}
private static void createAndShowGUI() {
JFrame frame = new JFrame();
JPanel north = createNorthPanel();
JPanel center = createCenterPanel();
JPanel south = createSouthPanel();
frame.add(north, BorderLayout.NORTH);
frame.add(center, BorderLayout.CENTER);
frame.add(south, BorderLayout.SOUTH);
frame.setLocationByPlatform(true);
frame.pack();
frame.setVisible(true);
}
private static JPanel createNorthPanel() {
JPanel northPanel = new JPanel();
BoxLayout northPanelLayout = new BoxLayout(northPanel, BoxLayout.Y_AXIS);
northPanel.setLayout(northPanelLayout);
JPanel upperPanel = new JPanel();
JLabel funFunGuessingGameLabel = new JLabel("FUN FUN Guessing Game");
funFunGuessingGameLabel.setFont(funFunGuessingGameLabel.getFont().deriveFont(Font.ITALIC));
upperPanel.add(funFunGuessingGameLabel);
upperPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
JPanel lowerPanel = new JPanel();
BoxLayout lowerPanelLayout = new BoxLayout(lowerPanel, BoxLayout.X_AXIS);
lowerPanel.setLayout(lowerPanelLayout);
JButton startButton = new JButton("START");
startButton.setPreferredSize(new Dimension(175,(int)startButton.getPreferredSize().getHeight()));
JLabel entryBoxLabel = new JLabel("Entry Box: ");
JTextField entryBoxTextField = new JTextField();
lowerPanel.add(startButton);
lowerPanel.add(Box.createHorizontalStrut(10));
lowerPanel.add(entryBoxLabel);
lowerPanel.add(entryBoxTextField);
lowerPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
northPanel.add(upperPanel);
northPanel.add(lowerPanel);
return northPanel;
}
private static JPanel createCenterPanel() {
JPanel centerPanel = new JPanel();
BoxLayout centerPanelLayout = new BoxLayout(centerPanel, BoxLayout.Y_AXIS);
centerPanel.setLayout(centerPanelLayout);
JLabel l1 = new JLabel("Guesses and statistics are shown in this display as a scrollable list, e.g.: ");
JLabel l2 = new JLabel("(1,3,5)é(0,0)");
JLabel l3 = new JLabel("(2,4,6)é(0,0)");
JLabel l4 = new JLabel("(7,8,9)é(0,0)");
Box space = Box.createVerticalBox();
centerPanel.add(Box.createHorizontalStrut(10));
centerPanel.add(l1);
centerPanel.add(Box.createVerticalStrut(10));
centerPanel.add(l2);
centerPanel.add(Box.createVerticalStrut(5));
centerPanel.add(l3);
centerPanel.add(Box.createVerticalStrut(5));
centerPanel.add(l4);
centerPanel.add(Box.createVerticalStrut(40));
centerPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
return centerPanel;
}
private static JPanel createSouthPanel() {
JPanel southPanel = new JPanel();
BoxLayout southPanelLayout = new BoxLayout(southPanel, BoxLayout.Y_AXIS);
southPanel.setLayout(southPanelLayout);
JPanel upperPanel = new JPanel();
BoxLayout upperPanelLayout = new BoxLayout(upperPanel, BoxLayout.X_AXIS);
upperPanel.setLayout(upperPanelLayout);
JPanel clearButtonPanel = new JPanel(new BorderLayout(0, 0));
JButton clearButton = new JButton("CLEAR");
clearButton.setPreferredSize(new Dimension(175, (int) clearButton.getPreferredSize().getHeight()));
clearButtonPanel.add(clearButton);
JPanel innerPanel = new JPanel();
BoxLayout innerPanelLayout = new BoxLayout(innerPanel, BoxLayout.Y_AXIS);
innerPanel.setLayout(innerPanelLayout);
JPanel statisticsOptionsLabelPanel = new JPanel();
JLabel statisticsOptionsLabel = new JLabel("Statistics Options");
statisticsOptionsLabelPanel.add(statisticsOptionsLabel);
JPanel checkBoxPanel = new JPanel();
BoxLayout checkBoxPanelLayout = new BoxLayout(checkBoxPanel, BoxLayout.X_AXIS);
checkBoxPanel.setLayout(checkBoxPanelLayout);
JCheckBox bestTimeCheckBox = new JCheckBox("Best Time");
JCheckBox bestNumOfPlaysCheckBox = new JCheckBox("Best # of plays");
JCheckBox topPlayerCheckBox = new JCheckBox("Top Player");
checkBoxPanel.add(bestTimeCheckBox);
checkBoxPanel.add(bestNumOfPlaysCheckBox);
checkBoxPanel.add(topPlayerCheckBox);
innerPanel.add(statisticsOptionsLabelPanel);
upperPanel.add(Box.createVerticalGlue());
innerPanel.add(checkBoxPanel);
upperPanel.add(clearButtonPanel);
upperPanel.add(Box.createHorizontalStrut(14));
upperPanel.add(innerPanel);
upperPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
JPanel lowerPanel = new JPanel();
BoxLayout lowerPanelLayout = new BoxLayout(lowerPanel, BoxLayout.X_AXIS);
lowerPanel.setLayout(lowerPanelLayout);
JButton statsButton = new JButton("STATS");
statsButton.setPreferredSize(new Dimension(175,(int)statsButton.getPreferredSize().getHeight()));
JLabel haveFunLabel = new JLabel("Have Fun!!!");
lowerPanel.add(statsButton);
lowerPanel.add(Box.createHorizontalGlue());
lowerPanel.add(haveFunLabel);
lowerPanel.add(Box.createHorizontalGlue());
lowerPanel.setBorder(BorderFactory.createLineBorder(Color.BLACK, 1));
southPanel.add(upperPanel);
southPanel.add(lowerPanel);
return southPanel;
}
}