下面我提供了我的可复制代码。问题是它用灰色填充所有单元格。但是,我只需要使灰色单元格从第 0 列“移动”到最后一列(对于第 0 行)。
此外,如何在队列中创建多个“移动”的单元格?
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.Timer;
import javax.swing.table.DefaultTableCellRenderer;
public class test2 {
/**
* @param args
*/
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
}
});
}
private static void createAndShowGUI() {
gtest t= new gtest("TEST");
f.pack();
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setLocationRelativeTo(null);
}
}
class gtest extends JFrame
{
private static JTable table;
private int index;
public gtest(String title)
{
table = new JTable(6, 10);
table.setDefaultRenderer(Object.class, new PaintCell());
add(table);
startAnimation();
}
private void startAnimation() {
Timer timer = new Timer(100, new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
index++;
if (index > table.getRowCount() * table.getColumnCount())
index = 0;
table.repaint();
}
});
//timer.setRepeats(true);
timer.start();
}
class PaintCell extends DefaultTableCellRenderer {
private static final long serialVersionUID = 1L;
public Component getTableCellRendererComponent(JTable table,
Object value, boolean isSelected, boolean hasFocus, int row,
int column) {
Component cell = super.getTableCellRendererComponent(table, value,
isSelected, hasFocus, row, column);
int id = row * table.getRowCount() + column;
cell.setBackground(id < index ? Color.LIGHT_GRAY : null);
return cell;
}
}
}
最佳答案
改变...
int id = row * table.getRowCount() + column;
cell.setBackground(id < index ? Color.LIGHT_GRAY : null);
致...
int checkRow = index / table.getColumnCount();
int checkCol = index % table.getColumnCount();
cell.setBackground(checkRow == row && checkCol == column ? Color.LIGHT_GRAY : null);
这将根据index
的当前值以及与单元格渲染器的单元格行/列的比较来计算行和列
关于java - 如何改变JTable中单元格的颜色以提供动画效果?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28233067/