Question

我遇到了Java Swing应用程序的问题。

我的代码：

public class AdminToken extends JFrame {


VirtualServer server;

@Override
public Container getContentPane() {
    return super.getContentPane();
}

public AdminToken(VirtualServer server)
{
    this.server = server;
    getContentPane().setLayout(null);
    setupGUI();
   setLayout(new GridLayout(5,1));

}
void setupGUI()
{

    setTitle("Token Management Server: " + server.getName() );
    setSize(576,528);
    setVisible(true);
    setResizable(true);

    final JPanel panel = new JPanel();
    panel.setLayout(new GridLayout(5,1));
    LoginForm.api.selectVirtualServer(server);
    for( final PrivilegeKey tokens  : LoginForm.api.getPrivilegeKeys()) {

        final JLabel label =  new JLabel(tokens.getToken() + "   " + tokens.getGroupId() + "   " +  "\n");

        panel.add(label);
        JButton button = new JButton("Löschen");

        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                LoginForm.api.deletePrivilegeKey(tokens.getToken());
                panel.remove(label);
                panel.repaint();
            }
        });
        button.setVisible(true);
        button.setPreferredSize(new Dimension(87,25));
        panel.add(button);

    }
    JScrollPane scrollPane = new JScrollPane (panel,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    add(scrollPane);

    LoginForm.api.selectVirtualServerById(LoginForm.vServerId);
}

标记应该显示如下：

Token1按钮删除\ n

令牌2按钮删除\ n

令牌3按钮删除\ n 所以一个

我也无法在另一个JFrame中更改按钮的大小：

守则：

public class TsServerOverview extends JFrame {


@Override
public Container getContentPane() {
    return super.getContentPane();
}

public TsServerOverview()
{
    getContentPane().setLayout(null);
    setupGUI();
    setLayout(new GridLayout());

}
void setupGUI()
{

    setTitle("Ts3Query Server Oveview");
    setSize(576,528);
    setVisible(true);
    setResizable(true);

    JPanel panel = new JPanel();
    panel.setLayout(new GridLayout(5,2));
    for( final VirtualServer servers : LoginForm.api.getVirtualServers()) {

        final int id = servers.getId();
       panel.add(new JLabel(servers.getId() + "    " + servers.getName() + "   " + servers.getClientsOnline() + "/" + servers.getMaxClients() + "\n"));
       JButton button = new JButton("Konsole öffnen");

        JButton showchannels = new JButton("Channel-Liste");
        JButton tokenmanagement = new JButton("Token Management");
        showchannels.setPreferredSize(new Dimension(10,10));
       button.addActionListener(new ActionListener() {
           public void actionPerformed(ActionEvent e) {
               new GUIConsole(servers);
           }
       });
       showchannels.addActionListener(new ActionListener() {
           public void actionPerformed(ActionEvent e) {
               new ChannelList(servers);
           }
       });
       tokenmanagement.addActionListener(new ActionListener() {
           public void actionPerformed(ActionEvent e) {
               new AdminToken(servers);
           }
       });
       tokenmanagement.setVisible(true);
        button.setVisible(true);
        showchannels.setVisible(true);
        panel.add(showchannels);

       panel.add(button);
       panel.add(tokenmanagement);

    }
    JScrollPane scrollPane = new JScrollPane (panel,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    add(scrollPane);
}

那也应该像这样显示：

Server1 3/32在线启动停止控制台\ n

Server2 3/32离线启动停止控制台\ n

Server3 3/32在线启动停止控制台

按钮应位于服务器线旁边。

如果有人可以帮我处理我的代码，那就太好了。

Answer 1

public class AdminToken extends JFrame {   
VirtualServer server;

@Override
public Container getContentPane() {
    return super.getContentPane();
}

删除展示问题所不需要的所有内容。这包括VirtualServer

public AdminToken(VirtualServer server)
{
    this.server = server;
    getContentPane().setLayout(null);
    setupGUI();
   setLayout(new GridLayout(5,1));
}

getContentPane().setLayout和setLayout基本相同。没有使用它设置两次。避免空布局管理器。

void setupGUI()
{ 
    setTitle("Token Management Server: " + server.getName() );
    setSize(576,528);
    setVisible(true);
    setResizable(true);

不需要

setTitle来证明这个问题。无需设定尺寸。在适用时设置首选大小，让布局管理器执行布局。 setResizable(true)是默认值。这同样适用于button.setVisible(true);
您通常最后需要setVisible(true);。

    final JPanel panel = new JPanel();
    panel.setLayout(new GridLayout(5,1));

按new GridLayout(5,1)将网格设置为5行。如果添加更多，则会影响布局。来自java doc：

rows - 行，值为零表示任意行数。

    LoginForm.api.selectVirtualServer(server);
    for( final PrivilegeKey tokens  : LoginForm.api.getPrivilegeKeys()) {

        final JLabel label =  new JLabel(tokens.getToken() + "   " + tokens.getGroupId() + "   " +  "\n");

        panel.add(label);
        JButton button = new JButton("Löschen");

        button.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                LoginForm.api.deletePrivilegeKey(tokens.getToken());
                panel.remove(label);
                panel.repaint();
            }
        });
        button.setVisible(true);
        button.setPreferredSize(new Dimension(87,25));
        panel.add(button);

    }
    JScrollPane scrollPane = new JScrollPane (panel,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    add(scrollPane);

    LoginForm.api.selectVirtualServerById(LoginForm.vServerId);
}

以下mcve展示了我认为你想要实现的目标：

import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.SwingUtilities;

public class AdminToken extends JFrame {

    public AdminToken()
    {
        setupGUI();
        setVisible(true);
        setResizable(true);
        pack();
    }
    void setupGUI() {

        JPanel panel = new JPanel();
        panel.setLayout(new GridLayout(0,2));

        for(int row =0; row < 6; row++ ) {
            panel.add(new JLabel("Label "+row));
            panel.add(new JButton("Delete"));
        }

        JScrollPane scrollPane = new JScrollPane (panel);
        add(scrollPane);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> new AdminToken() );
    }
}

Java Grid Layout错误按钮大小和错误的位置

1 个答案: