进行的操作

Question

我有一个JDialog，并希望该商店后关闭它确认文本框的数据......现在我已经没有问题，从存储箱中的数据，但之后关闭Swing对话框，

操作后如何关闭此对话框？

似乎是一个简单的事情，但我还没有找到解决方案。

public class test extends JDialog { 

    private final JPanel contentPanel = new JPanel(); 

    public test() { 
     setBounds(100, 100, 450, 300); 
     getContentPane().setLayout(new BorderLayout()); 
     contentPanel.setLayout(new FlowLayout()); 
     contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5)); 
     getContentPane().add(contentPanel, BorderLayout.CENTER); 
     { 
      JPanel buttonPane = new JPanel(); 
      buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT)); 
      getContentPane().add(buttonPane, BorderLayout.SOUTH); 
      { 
       JButton okButton = new JButton("OK"); 
       okButton.setActionCommand("OK"); 
       buttonPane.add(okButton); 
       getRootPane().setDefaultButton(okButton); 
          okButton.addActionListener(new java.awt.event.ActionListener() { 
        public void actionPerformed(java.awt.event.ActionEvent e) { 
         try{ 

          int x=Integer.parseInt(textField.getText()); 
          saver.saveN(x); 

         }catch(Exception ecc){ 
          JOptionPane.showMessageDialog(Test.this,"error"); 
         } 
        } 
       }); 
      } 

     } 
    } 

} 

Answer 1

要么使用Window#dispose或Window#setVisible(false)。

Answer 2

如果您打算与所有的字段值和组件状态离开相同，当你关闭它再次使用一个JDialog，使用调用setVisible（假）。

在任何其他情况下，呼叫处理（），以避免残留在所述存储器中的的JDialog当不再需要它。

Answer 3

• 如果你使用这个对话框只有一次一次再有就是同使用dispose()为setVisible(false)

• 的情况下，你调用这个方法比一次时间更多，那么你可以使用HIDE_ON_CLOSE 或setVisible(false) ，better would be re_use this JDialog

编辑

import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import javax.swing.Timer; 
import javax.swing.border.EmptyBorder; 
public class Test { 

    private static final long serialVersionUID = 1L; 
    private JDialog dialog = new JDialog(); 
    private final JPanel contentPanel = new JPanel(); 
    private Timer timer1; 
    private JButton killkButton = new JButton("Kill JDialog"); 

    public Test() { 
     contentPanel.setLayout(new FlowLayout()); 
     contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5)); 

     JPanel buttonPane = new JPanel(); 
     JButton okButton = new JButton("OK"); 
     okButton.setActionCommand("OK"); 
     buttonPane.add(okButton); 

     killkButton.setActionCommand("Kill JDialog"); 
     buttonPane.add(killkButton); 

     dialog.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE); 
     dialog.addWindowListener(new WindowListener() { 

      public void windowOpened(WindowEvent e) { 
      } 

      public void windowClosing(WindowEvent e) { 
       startTimer(); 
      } 

      public void windowClosed(WindowEvent e) { 
      } 

      public void windowIconified(WindowEvent e) { 
      } 

      public void windowDeiconified(WindowEvent e) { 
      } 

      public void windowActivated(WindowEvent e) { 
      } 

      public void windowDeactivated(WindowEvent e) { 
      } 
     }); 
     dialog.setLayout(new BorderLayout()); 
     dialog.getRootPane().setDefaultButton(okButton); 
     dialog.add(buttonPane, BorderLayout.SOUTH); 
     dialog.add(contentPanel, BorderLayout.CENTER); 
     dialog.pack(); 
     dialog.setLocation(100, 100); 
     dialog.setVisible(true); 
     setKeyBindings(); 
    } 

    private void setKeyBindings() { 
     killkButton.getInputMap(
       JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(
       KeyStroke.getKeyStroke("ENTER"), "clickENTER"); 
     killkButton.getActionMap().put("clickENTER", new AbstractAction() { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       System.exit(0); 
      } 
     }); 
    } 

    private void startTimer() { 
     timer1 = new Timer(1000, new AbstractAction() { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       SwingUtilities.invokeLater(new Runnable() { 

        @Override 
        public void run() { 
         dialog.setVisible(true); 
        } 
       }); 
      } 
     }); 
     timer1.setDelay(500); 
     timer1.setRepeats(false); 
     timer1.start(); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       Test test = new Test(); 
      } 
     }); 
    } 
}