我正在用JTabbedPane和JButton编写一个交互式程序。到目前为止，我已经做到了，因此，当单击“预订航班”选项卡时，将显示以下面板：
我想要一个在单击任一按钮时也将使用MouseListener来显示的图像。该代码是什么样的？
这是我目前的方法：
显示图像：
protected JComponent makeImagePanel(String path)
{
try{
JPanel panel = new JPanel(false);
BufferedImage myPicture = ImageIO.read(new File(path));
JLabel picLabel = new JLabel(new ImageIcon( myPicture ));
panel.add(picLabel);
return panel;
}catch (IOException e)
{
throw new IllegalArgumentException("Unable to load" + path);
}
}
和鼠标事件：
protected JComponent FlightOptions()
{
JPanel panel= new JPanel(false);
JButton international= new JButton("International Flights");
JButton domestic= new JButton("Domestic Flights");
international.setVerticalTextPosition (AbstractButton.CENTER);
international.setHorizontalTextPosition(AbstractButton.LEADING);
domestic.setVerticalTextPosition (AbstractButton.CENTER);
domestic.setHorizontalTextPosition(AbstractButton.LEADING);
international.setActionCommand("international");
domestic.setActionCommand("domestic");
international.setEnabled(true);
MouseAdapter2 mouse= new MouseAdapter2();
international.addMouseListener(mouse);
domestic.addMouseListener(mouse);
panel.setLayout(new GridLayout(1, 1));
panel.add(international);
panel.add(domestic);
return panel;
}
class MouseAdapter2 extends MouseAdapter {
public void mousePressed(MouseEvent e) {
JButton buttonpressed = (JButton)e.getSource();
if(buttonpressed==international)
{
reservation= makeImagePanel("international_1.gif");
overview.addTab("International Flight", reservation);
}
}
谢谢！
最佳答案
你可以通过使用
jButton2.setPressedIcon(new javax.swing.ImageIcon(getClass().getResource("/newpackage/Water lilies.jpg")));
运行这段代码，看看它如何工作
升级2
import javax.swing.JFrame;
import javax.swing.JOptionPane;
public class Sample extends javax.swing.JFrame {
public Sample() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jTabbedPane1 = new javax.swing.JTabbedPane();
jPanel2 = new javax.swing.JPanel();
jButton1 = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel2.setLayout(new java.awt.GridLayout());
jButton1.setText("jButton1");
jButton1.setPressedIcon(new javax.swing.ImageIcon(getClass().getResource("/newpackage/Blue hills.jpg"))); // NOI18N
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jPanel2.add(jButton1);
jButton2.setText("jButton1");
jButton2.setPressedIcon(new javax.swing.ImageIcon(getClass().getResource("/newpackage/Water lilies.jpg"))); // NOI18N
jButton2.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton2ActionPerformed(evt);
}
});
jPanel2.add(jButton2);
jTabbedPane1.addTab("tab2", jPanel2);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jTabbedPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jTabbedPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 300, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
ImagePanel panel = new ImagePanel();
// display the jpanel in a joptionpane dialog, using showMessageDialog
JFrame frame = new JFrame("JOptionPane showMessageDialog component example");
JOptionPane.showMessageDialog(frame, panel);
}
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
ImagePanel2 panel = new ImagePanel2();
// display the jpanel in a joptionpane dialog, using showMessageDialog
JFrame frame = new JFrame("JOptionPane showMessageDialog component example");
JOptionPane.showMessageDialog(frame, panel);
}
public static void main(String args[]) {
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
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(Sample.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Sample.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Sample.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Sample.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Sample().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JPanel jPanel2;
private javax.swing.JTabbedPane jTabbedPane1;
// End of variables declaration
}
ImagePanel.java
public class ImagePanel extends javax.swing.JPanel {
public ImagePanel() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/newpackage/Blue hills.jpg"))); // NOI18N
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, 609, Short.MAX_VALUE)
);
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
// End of variables declaration
}
ImagePanel2.java
public class ImagePanel2 extends javax.swing.JPanel {
public ImagePanel2() {
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/newpackage/Water lilies.jpg"))); // NOI18N
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
// End of variables declaration
}
关于java - JTabbedPane中的JButton，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/15847156/