将图像添加到GridLayout中的单元格

Question

尝试创建gridLayout并用图像填充它，哪里出错了？

ImageIcon grassIcon = new ImageIcon("images/grass_tile.jpg"); 
JPanel panel = new JPanel(new GridLayout(haps,snaps,0,0));

JLabel labels[] = new JLabel[(haps*snaps)];

for (int i =  0; i < haps*snaps; i++)
{
    labels[i] = new JLabel(grassIcon);
    panel.add(labels[i]);
}

frame.add(panel);

Answer 1

如果正确使用，请尝试检查图像路径。或者，如果您可以真正使图像出现，也可以进行测试，尝试使其成为绝对路径。而且，请在那里详细说明你的问题。

Answer 2

正如ben75所写，它需要frame.pack（）; 对他的信任！

Answer 3

使用 frame.setVisible（true）;

显示框架

ImageIcon grassIcon = new ImageIcon("images/grass_tile.jpg"); 
JPanel panel = new JPanel(new GridLayout(haps,snaps,0,0));

JLabel labels[] = new JLabel[(haps*snaps)];

for (int i =  0; i < haps*snaps; i++)
{
      labels[i] = new JLabel(grassIcon );
      panel.add(labels[i]);
}

frame.add(panel);
frame.pack();
frame.setVisible(true);