【发布时间】：2014-05-18 14:15:07
【问题描述】：
我已使用 JOptionpane 作为错误消息，该消息由 JDialog 上的错误用户输入调用。
模态类型：应用模态
modalExclusionType : APPLICATION_EXCLUDE
问题是当 JOptionpane 出现时，JDialog 仍然有效。 下面是调用 JOptionpane 的代码
JOptionPane.showMessageDialog(JDialog's name, "you must fill in all required fields", "Error!", 0);
有没有办法解决这个问题？
这是一个最小的示例程序
import javax.swing.JOptionPane;
public class Modality extends javax.swing.JFrame {
public Modality() {
initComponents();
}
private void initComponents() {
jDialog1 = new javax.swing.JDialog();
jTextField1 = new javax.swing.JTextField();
jButton2 = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
jButton1 = new javax.swing.JButton();
jDialog1.setModalExclusionType(java.awt.Dialog.ModalExclusionType.APPLICATION_EXCLUDE);
jDialog1.setModalityType(java.awt.Dialog.ModalityType.APPLICATION_MODAL);
jButton2.setText("JOptionpane");
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jLabel1.setText("Type in the textfield while the jdialog is visible");
javax.swing.GroupLayout jDialog1Layout = new javax.swing.GroupLayout(jDialog1.getContentPane());
jDialog1.getContentPane().setLayout(jDialog1Layout);
jDialog1Layout.setHorizontalGroup(
jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jDialog1Layout.createSequentialGroup()
.addGroup(jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jDialog1Layout.createSequentialGroup()
.addGap(109, 109, 109)
.addComponent(jButton2))
.addGroup(jDialog1Layout.createSequentialGroup()
.addGap(76, 76, 76)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 154, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jDialog1Layout.createSequentialGroup()
.addGap(50, 50, 50)
.addComponent(jLabel1)))
.addContainerGap(82, Short.MAX_VALUE))
);
jDialog1Layout.setVerticalGroup(
jDialog1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jDialog1Layout.createSequentialGroup()
.addGap(111, 111, 111)
.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jButton2)
.addGap(18, 18, 18)
.addComponent(jLabel1)
.addContainerGap(96, Short.MAX_VALUE))
);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jButton1.setText(" View JDialog");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(97, 97, 97)
.addComponent(jButton1)
.addContainerGap(122, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(101, 101, 101)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 51, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(105, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
jDialog1.pack();
jDialog1.setVisible(true);
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(jDialog1, "Hello World! What's wrong with focus?");
}
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Modality.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Modality.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Modality.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Modality.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Modality().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JDialog jDialog1;
private javax.swing.JLabel jLabel1;
private javax.swing.JTextField jTextField1;
}
【问题讨论】：
-
是的。除了模态问题它工作正常
-
你确定吗？：
JOptionPane.showMessageDialog(JDialog name,在我看来有点恶心。您不能以这种方式调用方法。无论如何，您应该发布一个small compilable example program，向我们展示您的问题。 -
对不起，这是我的错。通过“JDialog 名称”，我试图表示 JDialog 的名称
-
请edit your question，更正您的问题代码，然后考虑创建并发布您的minimal code example。
-
好的，我发布了一个工作示例
标签： java swing modal-dialog joptionpane jdialog