Question

我正在尝试像这样创建一个JOptionPane。我尝试了很多布局管理器但是（GridBagLayout，GridLayout，AbsoluteLayout）但我还没有成功。

例如，如果我使用GridBagLayout，ipadx确实有用，但JTextFields宽度取决于文字长度。

如果我使用GridLayout，则每个对象宽度都属于列宽。

如果我使用AbsoluteLayout，则JOptionPane不会将自身扩展到配置了携带对象的JPanel边界。

我需要固定的对象宽度，高度和JOptionPane在使用带有项目的JPanel创建它时应该展开。

哪个布局管理器最适合此任务？如果你建议，我会专注于它。

- 编辑 -

GridLayout示例;

JPanel panel = new JPanel( new GridLayout(8, 2) );

JLabel inforForNameLabel = new JLabel();
inforForNameLabel.setText("Long Label Name....................................");

final JTextField userNameTextField = new JTextField();
userNameTextField.setText("aaaaaaaaaaaaa");
userNameTextField.setEditable(false);

JLabel inforForNameSurname = new JLabel();
inforForNameSurname.setText("Long Label Name..................................");

final JTextField NameSurnameTextField = new JTextField();
NameSurnameTextField.setText("aaaaaaaaaaaa aaaaaaaaaa");

JLabel inforForStatsCombobox = new JLabel();
inforForStatsCombobox.setText("Long Label Name.................................");

JComboBox statComboBox = new JComboBox();
DefaultComboBoxModel dt = new DefaultComboBoxModel();
statComboBox.setModel(dt);
dt.addElement("USER.....");
dt.addElement("ADMIN");
statComboBox.setSelectedItem("USER.....");

JLabel inforForAuthCombobox = new JLabel();
inforForAuthCombobox.setText("Long Label Name.................................");

String[] authComboBoxObjects = { "READ", "READ/WRITE"};
final JComboBox authComboBox = new JComboBox(authComboBoxObjects);
authComboBox.setSelectedItem("READ/WRITE");

panel.add(inforForNameLabel);
panel.add(userNameTextField);
panel.add(inforForNameSurname);
panel.add(NameSurnameTextField);
panel.add(inforForStatsCombobox);
panel.add(statComboBox);
panel.add(inforForAuthCombobox);
panel.add(authComboBox);

String[] buttons = { "EXIT", "OK" };
int rc = JOptionPane.showOptionDialog(null, panel,"User Config", JOptionPane.INFORMATION_MESSAGE,JOptionPane.QUESTION_MESSAGE, null, buttons, buttons[1]);

if(rc == 0 || rc == -1){
     System.out.println(userNameTextField.getText());
}
else{
     System.out.println("Cancel...");
}

Answer 1

同意JDialog为您提供全面控制。

我需要知道如何通过JOptionPane
制作相同的东西

UIManager似乎控制了最小尺寸。在显示选项窗格之前，您可以使用以下方式覆盖：

Dimension size = UIManager.getDimension("OptionPane.minimumSize");
size.width = 100;
UIManager.put("OptionPane.minimumSize", size);

您可以查看UIManager Defaults以获取由UIManager控制的其他属性的列表。请注意，并不能保证所有LAF都能管理相同的属性。

Answer 2

感谢@ControlAltDel和@Gorbles

的路由评论

下面的代码在问题中构建了所需格式的OptionPane;

    JPanel panel = new JPanel();
    panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

    JLabel inforForNameLabel = new JLabel();
    inforForNameLabel.setText("Long Label Name.............................");
    inforForNameLabel.setAlignmentX(LEFT_ALIGNMENT);

    JLabel inforForNameLabel2 = new JLabel();
    inforForNameLabel2.setText("Long Label Name............................");
    inforForNameLabel2.setAlignmentX(LEFT_ALIGNMENT);

    final JTextField userNameTextField = new JTextField();
    userNameTextField.setText("aaaaaaaaaaaaa");
    userNameTextField.setEditable(false);
    userNameTextField.setPreferredSize(new Dimension(345, 30));
    userNameTextField.setMaximumSize(new Dimension(345, 30));
    userNameTextField.setAlignmentX(LEFT_ALIGNMENT);

    JLabel inforForNameSurname = new JLabel();
    inforForNameSurname.setText("Long Label Nameeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
    inforForNameSurname.setAlignmentX(LEFT_ALIGNMENT);

    final JTextField NameSurnameTextField = new JTextField();
    NameSurnameTextField.setText("aaaaaaaaaaaa aaaaaaaaaa");
    NameSurnameTextField.setPreferredSize(new Dimension(345, 30));
    NameSurnameTextField.setMaximumSize(new Dimension(345, 30));
    NameSurnameTextField.setAlignmentX(LEFT_ALIGNMENT);

    JLabel inforForStatsCombobox = new JLabel();
    inforForStatsCombobox.setText("Long Label Name....................");
    inforForStatsCombobox.setAlignmentX(LEFT_ALIGNMENT);

    JComboBox statComboBox = new JComboBox();
    DefaultComboBoxModel dt = new DefaultComboBoxModel();
    statComboBox.setModel(dt);
    dt.addElement("USER.....");
    dt.addElement("ADMIN");
    statComboBox.setSelectedItem("USER.....");
    statComboBox.setPreferredSize(new Dimension(200, 30));
    statComboBox.setMaximumSize(new Dimension(200, 30));
    statComboBox.setAlignmentX(LEFT_ALIGNMENT);

    JLabel inforForAuthCombobox = new JLabel();
    inforForAuthCombobox.setText("Long Label Name................................");
    inforForAuthCombobox.setAlignmentX(LEFT_ALIGNMENT);

    String[] authComboBoxObjects = { "READ", "READ/WRITE"};
    final JComboBox authComboBox = new JComboBox(authComboBoxObjects);
    authComboBox.setSelectedItem("READ/WRITE");
    authComboBox.setPreferredSize(new Dimension(200, 30));
    authComboBox.setMaximumSize(new Dimension(200, 30));
    authComboBox.setAlignmentX(LEFT_ALIGNMENT);


    panel.add(inforForNameLabel);
    panel.add(inforForNameLabel2);
    panel.add(userNameTextField);
    panel.add(inforForNameSurname);
    panel.add(NameSurnameTextField);
    panel.add(inforForStatsCombobox);
    panel.add(statComboBox);
    panel.add(inforForAuthCombobox);
    panel.add(authComboBox);

    String[] buttons = { "EXIT", "OK" };
    int rc = JOptionPane.showOptionDialog(null, panel,"User Config", JOptionPane.INFORMATION_MESSAGE,JOptionPane.QUESTION_MESSAGE, null, buttons, buttons[1]);

    if(rc == 0 || rc == -1){
        System.out.println("Cancel...");
    }
    else{
        System.out.println(userNameTextField.getText());
    }

创建具有固定宽度和高度的JOptionPane及其对象

2 个答案: