Question

我正在尝试创建一个带有GroupLayout的小Jpanel。尽可能地跟踪documentation并查看了一些StackOverflow问题，我仍然陷入困境。

错误如下：

线程“AWT-EventQueue-0”中的异常 java.lang.IllegalStateException： javax.swing.JButton中[，0,0,0x0，无效，alignmentX = 0.0，alignmentY = 0.5，边界= com.apple.laf.AquaButtonBorder $动态@ 5eef2e7c，旗帜= 288，MAXIMUMSIZE =，=的minimumSize，首选大小=，的DefaultIcon =，disabledIcon =，disabledSelectedIcon =，余量= javax.swing.plaf.InsetsUIResource [顶= 0，左= 2，底部= 0，右= 2]，的paintBorder =真，paintFocus =真，pressedIcon =，rolloverEnabled =假，rolloverIcon =，rolloverSelectedIcon =，selectedIcon =，text = Invest，defaultCapable = true]未附加到垂直组

我知道问题与按钮的连接位置有关。在所有错误明确说明之后。但是，我无法弄清楚我应该以什么方式附加它们。有什么想法吗？

    JPanel panel = new JPanel();

    GroupLayout layout = new GroupLayout(panel);
    panel.setLayout(layout);


    panel.setMinimumSize(new Dimension(2000,100));      
    panel.setBorder(BorderFactory.createTitledBorder((cdo.getTicker()) + " : (" + cdo.getCurrency() + ")"));


    layout.setVerticalGroup(
            layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                    .addComponent(new JButton("Invest")))                       
                    .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                            .addComponent(new JButton("Ignore")))
                            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                                    .addComponent(new JButton("Article")))

            );


    layout.setHorizontalGroup(
            layout.createSequentialGroup()
            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
                    .addComponent(new JButton("Invest"))
                    .addComponent(new JButton("Ignore"))
                    .addComponent(new JButton("Article"))
                    )
            );

Answer 1

new JButton("Invest")会创建一个新按钮，该按钮与之前使用新JButton("Invest")创建的按钮不同。

在布局之前移动按钮的初始化：

JButton investButton = new JButton("Invest");
JButton articleButton = new JButton("Article");
JButton ignoreButton = new JButton("Ignore");

layout.setVerticalGroup(
    layout.createSequentialGroup()
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
            .addComponent(investButton))                       
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
            .addComponent(ignoreButton))
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
            .addComponent(articleButton)));

layout.setHorizontalGroup(
    layout.createSequentialGroup()
        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
            .addComponent(investButton)
            .addComponent(ignoreButton)
            .addComponent(articleButton)));

GroupLayout：垂直和水平组

1 个答案: