個人的には、すぐに 2 番目のフレームを起動し、最初のフレームをが所有するJFrame
モーダルに置き換えます。JDialog
JFrame
The Use of Multiple JFrames, Good/Bad Practice?に対するこの回答も参照してください。
これが私が提案するものの基本的なデモです:
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class TestLogin {
private JFrame frame;
private boolean authenticated;
private JTextField login;
private JPasswordField password;
protected void initUI() {
frame = new JFrame(TestLogin.class.getSimpleName());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(600, 600);
frame.setVisible(true);
}
protected void showLoginDialog() {
authenticated = false;
final JDialog dialog = new JDialog(frame, "Please provide your credentials");
dialog.setModal(true);
JPanel panel = new JPanel(new GridBagLayout());
JPanel buttonPanel = new JPanel();
login = new JTextField(40);
password = new JPasswordField(20);
JLabel loginLabel = new JLabel("Login:");
JLabel passwordLabel = new JLabel("Password:");
JButton ok = new JButton("OK");
ok.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// Here perform authentication and set authentication flag to appropriate value
authenticated = true;
if (authenticated) {
setUpFrame();
dialog.dispose();
}
}
});
JButton cancel = new JButton("Cancel");
cancel.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
dialog.addWindowListener(new WindowAdapter() {
@Override
public void windowClosed(WindowEvent e) {
if (!authenticated) {
System.exit(0);
}
}
});
dialog.getRootPane().setDefaultButton(ok);
buttonPanel.add(ok);
buttonPanel.add(cancel);
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(5, 5, 5, 5);
gbc.fill = GridBagConstraints.HORIZONTAL;
panel.add(loginLabel, gbc);
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.weightx = 1.0;
panel.add(login, gbc);
gbc.gridwidth = 1;
gbc.weightx = 0;
panel.add(passwordLabel, gbc);
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.weightx = 1.0;
panel.add(password, gbc);
panel.add(buttonPanel, gbc);
dialog.add(panel);
dialog.pack();
dialog.setLocationRelativeTo(frame);
while (!authenticated) {
dialog.setVisible(true);
}
}
protected void setUpFrame() {
frame.add(new JLabel("Successfully authenticated"));
frame.revalidate();
frame.repaint();
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException,
UnsupportedLookAndFeelException {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
TestLogin testLogin = new TestLogin();
testLogin.initUI();
testLogin.showLoginDialog();
}
});
}
}