Java 在JPanel中以特定方式定位按钮

我试图以一种特定的方式定位六个按钮，但目前输出几乎正确，但按钮不在我希望它们处于的确切位置（所有按钮都接触相邻的按钮，没有间隙）。这是如下所示：

有人能看看我的代码，看看为什么定位不准确吗

public void createDirectionButtonPanel() {

    JButton northButton = new JButton("north");
    JButton  southButton = new JButton("south");
    JButton westButton = new JButton("west");
    JButton eastButton = new JButton("east");
    JButton upButton = new JButton("up");
    JButton downButton = new JButton("down");

    JPanel directionButtonPanel = new JPanel();
    // directionButtonPanel.setOpaque(false);
    directionButtonPanel.setLayout(new BoxLayout(directionButtonPanel, BoxLayout.Y_AXIS));

    JPanel directionRow_1 = new JPanel();
    // directionRow_1.setOpaque(false);
    directionRow_1.setLayout(new BoxLayout(directionRow_1, BoxLayout.X_AXIS));
    directionRow_1.add(Box.createRigidArea(northButton.getPreferredSize()));
    directionRow_1.add(northButton);
    directionRow_1.add(Box.createRigidArea(northButton.getPreferredSize()));
    directionRow_1.add(upButton);

    JPanel directionRow_2 = new JPanel();
    // directionRow_2.setOpaque(false);
    directionRow_2.setLayout(new BoxLayout(directionRow_2, BoxLayout.X_AXIS));
    directionRow_2.add(westButton);
    directionRow_2.add(Box.createRigidArea(northButton.getPreferredSize()));
    directionRow_2.add(eastButton);
    directionRow_2.add(Box.createRigidArea(northButton.getPreferredSize()));

    JPanel directionRow_3 = new JPanel();
    // directionRow_3.setOpaque(false);
    directionRow_3.setLayout(new BoxLayout(directionRow_3, BoxLayout.X_AXIS));
    directionRow_3.add(Box.createRigidArea(northButton.getPreferredSize()));
    directionRow_3.add(southButton);
    directionRow_3.add(Box.createRigidArea(northButton.getPreferredSize()));
    directionRow_3.add(downButton);

    upButton.setMaximumSize(southButton.getPreferredSize());
    northButton.setMaximumSize(southButton.getPreferredSize());
    westButton.setMaximumSize(southButton.getPreferredSize());
    southButton.setMaximumSize(southButton.getPreferredSize());
    downButton.setMaximumSize(southButton.getPreferredSize());
    eastButton.setMaximumSize(southButton.getPreferredSize());

    directionButtonPanel.add(directionRow_1);
    directionButtonPanel.add(directionRow_2);
    directionButtonPanel.add(directionRow_3);

}

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试试这个。GridLayout似乎很合适，正如JavaDoc所说：

创建具有指定行数和列数的网格布局。布局中的所有组件都具有相同的大小。

还省去了您自己排列行的麻烦。只需将所有内容添加到

方向按钮面板

    JButton northButton = new JButton("north");
    JButton southButton = new JButton("south");
    JButton westButton = new JButton("west");
    JButton eastButton = new JButton("east");
    JButton upButton = new JButton("up");
    JButton downButton = new JButton("down");

    JPanel directionButtonPanel = new JPanel();
    directionButtonPanel.setLayout(new GridLayout(3,4));

    // row 1
    directionButtonPanel.add(new JPanel());
    directionButtonPanel.add(northButton);
    directionButtonPanel.add(new JPanel());
    directionButtonPanel.add(upButton);

    // row 2
    directionButtonPanel.add(westButton);
    directionButtonPanel.add(new JPanel());
    directionButtonPanel.add(eastButton);
    directionButtonPanel.add(new JPanel());

    // row 3
    directionButtonPanel.add(new JPanel());
    directionButtonPanel.add(southButton);
    directionButtonPanel.add(new JPanel());
    directionButtonPanel.add(downButton);

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1，simpest是通过放置12个JButtun（其余部分不应设置为可见（false）），2。最好是在这里搜索操纵杆或类似导航键的东西（如TVs remote），这样上面的图像就是您需要的？或者您从显示的代码中得到了什么？我很困惑。。使用

GridLayout

可以轻松创建图像。