Question

也许这是一个愚蠢的问题，但我已经尝试在线找到解决方案，没有人能带我到解决方案。我创建了一个有2个jPanel的程序，我打算在程序启动时显示jPanel1或单击jLabel1。然后当我单击jLabel2时，jPanel1隐藏，并显示jPanel2。但只有ipv4Menus可以显示（即使我点击ipv4但它确实显示）。当我点击ipv6但没有显示任何面板时。

这是我的程序的类比，发生了问题：

//create jPanel1 (ipv4Menus) & 2 (ipv6Menus) variables;
//create jLabel1 (ipv4but) & 2 (ipv6but) variables; 

//this is groupLayout which showing

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel3, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jPanel4, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 255, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(0, 0, 0)
                            .addComponent(ipv4Menus, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );
    layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                            .addComponent(jPanel4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                            .addGap(0, 0, Short.MAX_VALUE)
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                    .addComponent(ipv4Menus, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                            .addGap(0, 0, 0)
                            .addComponent(jPanel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
    );

这是ipv4but的mouselistener：

ipv4But.addMouseListener(new java.awt.event.MouseAdapter() {

        @Override
        public void mouseClicked(java.awt.event.MouseEvent evt) {
            remove(ipv6Menus);
            add(ipv4Menus);
            revalidate();
            repaint();
            ipv4ButMouseClicked(evt);
        }});

这是ipv6but的mouselistener：

 ipv6But.addMouseListener(new java.awt.event.MouseAdapter() {

        @Override
        public void mouseClicked(java.awt.event.MouseEvent evt) {
            remove(ipv4Menus);
            add(ipv6Menus);
            revalidate();
            repaint();
            ipv6ButMouseClicked(evt);
        }});

抱歉英文不好或格式不好，我刚来这里。任何形式的回应我会很高兴和感谢。

没有错误，但是当jPanel1正常时jPanel2没有显示

0 个答案: