无法使用setVisible（boolean true / false）隐藏JFrame；

时间：2018-12-18 03:02:00

标签： java swing user-interface jframe

我正在使用Netbeans Swing Gui构建器。

我创建了一个简单的菜单，我想在按热键时显示/消失。

这是菜单的代码：

package overlay;

import java.util.Properties;
import javax.swing.JOptionPane;
import static overlay.Overlay.flags;

public class Menu extends javax.swing.JFrame {

static boolean isVisible = true;

/**
 * Creates new form Menu
 */
public Menu() {
    initComponents();
}

/**
 * This method is called from within the constructor to initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is always
 * regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {

    jSeparator4 = new javax.swing.JSeparator();
    jPanel1 = new javax.swing.JPanel();
    jLabel3 = new javax.swing.JLabel();
    jSeparator1 = new javax.swing.JSeparator();
    jLabel1 = new javax.swing.JLabel();
    jLabel2 = new javax.swing.JLabel();
    jSeparator2 = new javax.swing.JSeparator();
    jSeparator3 = new javax.swing.JSeparator();
    jSeparator5 = new javax.swing.JSeparator();
    jCheckBox1 = new javax.swing.JCheckBox();
    jCheckBox2 = new javax.swing.JCheckBox();

    setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
    setUndecorated(true);
    setOpacity(0.9F);
    setResizable(false);
    setType(java.awt.Window.Type.POPUP);

    jLabel3.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
    jLabel3.setText("Foo");

    javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
    jPanel1.setLayout(jPanel1Layout);
    jPanel1Layout.setHorizontalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(jPanel1Layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 204, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
    );
    jPanel1Layout.setVerticalGroup(
        jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
            .addGap(0, 11, Short.MAX_VALUE)
            .addComponent(jLabel3))
    );

    jSeparator1.setOrientation(javax.swing.SwingConstants.VERTICAL);

    jLabel1.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
    jLabel1.setText("Foo");

    jLabel2.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N
    jLabel2.setText("Foo");

    jSeparator3.setOrientation(javax.swing.SwingConstants.VERTICAL);

    jCheckBox1.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
    jCheckBox1.setText("Foo");
    jCheckBox1.setActionCommand("JFoo");
    jCheckBox1.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jCheckBox1ActionPerformed(evt);
        }
    });

    jCheckBox2.setFont(new java.awt.Font("Arial", 1, 12)); // NOI18N
    jCheckBox2.setText("Foo");
    jCheckBox2.addActionListener(new java.awt.event.ActionListener() {
        public void actionPerformed(java.awt.event.ActionEvent evt) {
            jCheckBox2ActionPerformed(evt);
        }
    });

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
    getContentPane().setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(layout.createSequentialGroup()
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE)
                                .addComponent(jCheckBox2))
                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 280, Short.MAX_VALUE)
                            .addComponent(jSeparator1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                        .addGroup(layout.createSequentialGroup()
                            .addGap(0, 0, Short.MAX_VALUE)
                            .addComponent(jSeparator3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 86, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addComponent(jCheckBox1))
                    .addGap(261, 261, 261))
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                    .addComponent(jSeparator2)
                    .addContainerGap())
                .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                    .addComponent(jSeparator5)
                    .addContainerGap())))
    );
    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(jSeparator5, javax.swing.GroupLayout.PREFERRED_SIZE, 10, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addGap(2, 2, 2)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(layout.createSequentialGroup()
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jLabel2)
                        .addComponent(jLabel1))
                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                    .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addComponent(jCheckBox1)
                        .addComponent(jCheckBox2))
                    .addGap(0, 104, Short.MAX_VALUE))
                .addComponent(jSeparator1))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(jSeparator2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(jSeparator3, javax.swing.GroupLayout.PREFERRED_SIZE, 179, javax.swing.GroupLayout.PREFERRED_SIZE)
            .addContainerGap())
    );

    jCheckBox1.getAccessibleContext().setAccessibleName("JFooB");

    pack();
}// </editor-fold>                        

private void jCheckBox1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
    // TODO add your handling code here: Foo
    Overlay.Foo = !Overlay.Foo;
}                                          

private void jCheckBox2ActionPerformed(java.awt.event.ActionEvent evt) {                                           
    // TODO add your handling code here: //Foo1
    Overlay.Foo1 = !Overlay.Foo1;
}                                          

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */

    try {
        Properties props = new Properties();
        props.put("windowDecoration", "off");
        props.put("textAntiAliasing", "on");
        props.put("backgroundPattern", "off");
        props.put("backgroundColor", "60 63 65");
        props.put("windowBorderColor", "255 255 255");

        //   props.put("selectionForegroundColor", "255 255 255"); 
        //   props.put("selectedTexture", "255 255 255"); 
        props.put("focusColor", "60 63 65");

        com.jtattoo.plaf.hifi.HiFiLookAndFeel.setCurrentTheme(props);

        javax.swing.UIManager.setLookAndFeel("com.jtattoo.plaf.hifi.HiFiLookAndFeel");

    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(Menu.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }

    //</editor-fold>


    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {

            new Menu().setVisible(true);

        }
    });
}

public void toggleMenu() {
    isVisible = !isVisible;

    if (isVisible) {

      setVisible(true);
        //JOptionPane.showMessageDialog(null, String.valueOf(isVisible), String.valueOf(isVisible), JOptionPane.INFORMATION_MESSAGE);
    } else {

        //JOptionPane.showMessageDialog(null, String.valueOf(isVisible), String.valueOf(isVisible), JOptionPane.INFORMATION_MESSAGE);

        setVisible(false);

        dispose();
    }
}

// Variables declaration - do not modify                     
private javax.swing.JCheckBox jCheckBox1;
private javax.swing.JCheckBox jCheckBox2;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JSeparator jSeparator2;
private javax.swing.JSeparator jSeparator3;
private javax.swing.JSeparator jSeparator4;
private javax.swing.JSeparator jSeparator5;
// End of variables declaration                   
}

我正在做的是在按键时从我的Main类（名为Overlay）调用toggleMenu（）方法，它翻转了isVisible布尔值。问题是，当我按下按钮时，它什么也没做。然后，当我再次按下它时，它将创建一个具有不同外观（不是我最初指定的外观）的新窗口。 我也尝试使用hide（）;和show（）;方法，但没有成功。

那我做错了什么？我不太熟悉Netbeans如何处理gui创建，尽管我认为这应该可行。

1 个答案:

答案 0 :(得分：-1)

固定，在运行方法中，更改此：

public void run() {

        new Menu().setVisible(true);

    }

对此：

  public void run() {
            m = new Menu();
            m.setVisible(true);
        }

（创建一个名为m的静态Menu对象，然后在toggleMenu（）方法中，使用

m.setVisible(true);

或错误。关闭。

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