将您的单元格放入一个 GridLayout 中,使用创建的 JPanel 来保存它们,然后使用适合您的 GUI 的任何布局将该JPanel 添加到主 JPanel。请理解,您可以根据需要嵌套 JPanel,每个 JPanel 都使用自己的布局管理器,从而允许使用简单的布局管理器来创建复杂的布局。
例如,
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.*;
@SuppressWarnings("serial")
public class ColorGrid extends JPanel {
private static final int PREF_W = 750;
private static final int PREF_H = 550;
private static final int GRID_ROWS = 5;
private static final int GRID_COLS = 5;
public ColorGrid() {
JPanel gridPanel = new JPanel(new GridLayout(GRID_ROWS, GRID_COLS));
for (int row = 0; row < GRID_ROWS; row++) {
for (int col = 0; col < GRID_COLS; col++) {
gridPanel.add(new ColorGridCell(row, col));
}
}
setLayout(new GridBagLayout()); // to center component added
add(gridPanel);
}
@Override
public Dimension getPreferredSize() {
return new Dimension(PREF_W, PREF_H);
}
private static void createAndShowGui() {
ColorGrid mainPanel = new ColorGrid();
JFrame frame = new JFrame("ColorGrid");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
@SuppressWarnings("serial")
class ColorGridCell extends JPanel {
private static final int PREF_W = 100;
private static final int PREF_H = 75;
private final static Color[] COLORS = { Color.red, Color.orange,
Color.yellow, Color.green, Color.blue, Color.cyan, Color.darkGray,
Color.magenta, Color.pink };
private int colorIndex = (int) (Math.random() * COLORS.length);
private int row;
private int col;
public ColorGridCell(int row, int col) {
this.row = row;
this.col = col;
setBackground(COLORS[colorIndex]);
addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent e) {
colorIndex++;
colorIndex %= COLORS.length;
setBackground(COLORS[colorIndex]);
}
});
}
@Override
public Dimension getPreferredSize() {
return new Dimension(PREF_W, PREF_H);
}
public int getRow() {
return row;
}
public int getCol() {
return col;
}
}