我正在编写一个Java程序（下面的最小可编译示例），并且我试图通过使一些元素排成一行来完善用户界面。如果你运行它，你可以看到d_ip和d_pword看起来好多了，如果我能让它们大小相同的话。而且我希望它们在调整窗口大小时动态保持相同的大小。
GroupLayout有一个linkSize()方法，可让您链接不相关对象的大小。这适用于按钮和标签。但是使用JTextField，这是一场灾难。即使我将其中一个的最小尺寸设置为大尺寸，它仍然坚持将尺寸设置为零。
我还尝试过告诉GroupLayout水平分钟和首选大小为GroupLayout.DEFAULT_SIZE或GroupLayout.PREFERRED_SIZE无效的内容。谁能告诉我是否有任何方法可以强迫JTextField与linkSize一起正常工作？
请注意，要打开linkSize，有一行标有注释，您需要取消注释。当你这样做时，JTextField宽度搞砸了。另外，尝试将d_username添加到链接对象列表中。现在，即使你可以说，即使是'紧张'，要将用户名/密码行水平放置在窗口的宽度上，字段也会变为零，并且不会调整大小。
谢谢！
package textfield;
import java.awt.Container;
import java.awt.Dimension;
import javax.swing.ButtonGroup;
import javax.swing.GroupLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
public class TextField extends JFrame {
JTextField d_mount, d_ip, d_share, d_username, d_pword;
JRadioButton nfs, smb;
JButton save, revert;
TextField() {
Container pane = this.getContentPane();
JLabel lmount = new JLabel("Mount Point:");
JLabel ltype = new JLabel("Share Type:");
JLabel lip = new JLabel("IP Address:");
JLabel lshare = new JLabel("Remote Share:");
JLabel lusername = new JLabel("Username:");
JLabel lpassword = new JLabel("Password:");
d_mount = new JTextField();
nfs = new JRadioButton("NFS");
smb = new JRadioButton("SMB");
ButtonGroup group = new ButtonGroup();
group.add(nfs);
group.add(smb);
d_ip = new JTextField();
d_share = new JTextField();
d_username = new JTextField();
d_pword = new JTextField();
d_ip.setMinimumSize(new Dimension(200, 0));
save = new JButton("Save");
revert = new JButton("Revert");
GroupLayout layout = new GroupLayout(pane);
pane.setLayout(layout);
layout.setVerticalGroup(
layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(lmount)
.addComponent(d_mount)
)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(ltype)
.addComponent(nfs)
.addComponent(smb)
// )
//.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(lip)
.addComponent(d_ip)
)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(lshare)
.addComponent(d_share)
)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE, true)
.addComponent(lusername)
.addComponent(d_username)
.addComponent(lpassword)
.addComponent(d_pword)
)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
.addComponent(revert)
.addComponent(save)
)
);
layout.setHorizontalGroup(
layout.createParallelGroup()
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.TRAILING)
.addComponent(lmount)
.addComponent(ltype)
.addComponent(lshare)
.addComponent(lusername)
)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
.addComponent(d_mount)
.addGroup(layout.createSequentialGroup()
.addComponent(nfs)
.addComponent(smb)
.addGap(20, 20, Integer.MAX_VALUE)
.addComponent(lip)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(d_ip, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
)
.addComponent(d_share)
.addGroup(layout.createSequentialGroup()
.addComponent(d_username, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(lpassword)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(d_pword, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
)
)
)
.addGroup(layout.createSequentialGroup()
.addGap(0, 0, Integer.MAX_VALUE)
.addComponent(revert)
.addComponent(save)
)
);
// ****** ADD THIS LINE BACK IN ******
//layout.linkSize(SwingConstants.HORIZONTAL, d_pword, d_ip);
pack();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception e) {
}
java.awt.EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
new TextField().setVisible(true);
}
});
}
}
答案 0 :(得分：3)
立即解决方案是建议列中的大小。即
d_pword = new JTextField(15);
注意：
d_pword字段应为JPasswordField。答案 1 :(得分：0)
潜在的问题可能是，如果你链接两个对象，它们本身就不可调整大小。
如果本书所说的是真的：