java - 停止重复图标

Question

我正在制作一个 JTable，它可以覆盖将图标放入所需的表中。这就是我所做的。但结果在所有单元格中打印图标，而不仅仅是我的第一个单元格，这不是我想要的。结果如下:

import com.skype.User;

import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import java.awt.*;

class BoardTableCellRenderer extends DefaultTableCellRenderer {


    public Component getTableCellRendererComponent(JTable table, Object value,
                                                   boolean isSelected, boolean hasFocus, int row, int col) {

        Component c = super.getTableCellRendererComponent(table, value,
                isSelected, hasFocus, row, col);
        JLabel label = (JLabel)super.getTableCellRendererComponent(table, value,isSelected, hasFocus,row, col);
        //row is the username
        if(col == 0) {
            try {
                User temp = Functions.returnUser(value.toString());
                ImageIcon imageIcon = new ImageIcon(getClass().getResource("/" + temp.getStatus().toString() + ".png"));
                label.setIcon(imageIcon);
            } catch (Exception ex) {
            }
            return label;
        }else{
            return c;
        }

    }
}

Answer 1

将 label.setIcon(null); 添加到您的 else block ，否则您只是返回上次设置的内容

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