我有一些视图的一部分显示JOptionPane
中的文本字段。还有一个按钮"其他"。点击它后,我需要JOptionPane
重绘自己并显示一些隐藏的文本字段。
我将GridLayout用于我的文本字段。我在按钮侦听器中尝试了revalidate()
和repaint()
方法,但它们没有做任何更改。
validate()
方法有效,但所有组件的大小都太小。似乎在网格面板中调整大小错误。在我的原始代码中,一些组件只是隐藏。我没有setPrefferedSize()
或getPrefferedSize()
,因为我认为这是错误的,但无法弄清楚如何正确调整大小。
我接受了我的代码并且尽可能简单,只是视图的一部分。
public class AddView {
private JFrame parentFrame;
private JPanel addPanel;
private JPanel gd;
private JLabel nameLabel;
private JLabel surName;
private JLabel skype;
private JTextField nameTField;
private JTextField surNameTField;
private JTextField skypeTField;
private JButton otherButton;
public AddView(JFrame parent) {
this.parentFrame = parent;
initComponents();
}
private void initComponents() {
addPanel = new JPanel(new BorderLayout());
gd = new JPanel(new GridLayout(2, 2, 0, 5));
nameLabel = new JLabel("Name");
surName = new JLabel("Surname");
skype = new JLabel("Skype");
nameTField = new JTextField();
surNameTField = new JTextField();
skypeTField = new JTextField();
otherButton = new JButton("Other");
gd.add(nameLabel);
gd.add(nameTField);
gd.add(surName);
gd.add(surNameTField);
addPanel.add(gd, BorderLayout.CENTER);
addPanel.add(otherButton, BorderLayout.SOUTH);
otherButton.addActionListener(new OtherFieldsAction());
}
public int showAddPane() {
return JOptionPane.showConfirmDialog(parentFrame, addPanel, "Add Contact", JOptionPane.OK_CANCEL_OPTION);
}
private class OtherFieldsAction implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
gd.setLayout(new GridLayout(3, 2, 0, 5));
gd.add(skype);
gd.add(skypeTField);
// gd.revalidate(); not work
// gd.repaint();
gd.validate();
}
}
}
这是JOptionPane
当我点击"其他"按钮我有这个结果
但我需要像这样正确调整大小来获得它
您能就如何正确重画提出建议。
答案 0 :(得分:2)
也许Window#pack()方法可行:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class AddView2 {
private JFrame parentFrame;
private JPanel addPanel;
private JPanel gd;
private JLabel nameLabel;
private JLabel surName;
private JLabel skype;
private JTextField nameTField;
private JTextField surNameTField;
private JTextField skypeTField;
private JButton otherButton;
public AddView2(JFrame parent) {
this.parentFrame = parent;
initComponents();
}
private void initComponents() {
addPanel = new JPanel(new BorderLayout());
gd = new JPanel(new GridLayout(2, 2, 0, 5));
nameLabel = new JLabel("Name");
surName = new JLabel("Surname");
skype = new JLabel("Skype");
nameTField = new JTextField();
surNameTField = new JTextField();
skypeTField = new JTextField();
otherButton = new JButton("Other");
gd.add(nameLabel);
gd.add(nameTField);
gd.add(surName);
gd.add(surNameTField);
addPanel.add(gd, BorderLayout.CENTER);
addPanel.add(otherButton, BorderLayout.SOUTH);
otherButton.addActionListener(new OtherFieldsAction());
}
public int showAddPane() {
return JOptionPane.showConfirmDialog(parentFrame, addPanel, "Add Contact", JOptionPane.OK_CANCEL_OPTION);
}
private class OtherFieldsAction implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
gd.setLayout(new GridLayout(3, 2, 0, 5));
gd.add(skype);
gd.add(skypeTField);
// gd.revalidate(); not work
// gd.repaint();
// gd.validate();
SwingUtilities.getWindowAncestor((Component) e.getSource()).pack();
}
}
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override public void run() {
createAndShowGUI();
}
});
}
public static void createAndShowGUI() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
f.setSize(320, 240);
f.setLocationRelativeTo(null);
f.setVisible(true);
new AddView2(f).showAddPane();
}
}
答案 1 :(得分:0)
您可能需要调用添加组件的setPreferredSize()以获得所需的正确尺寸。