我想将另一个类的JPanel添加到JPanel:
retry
这是我的第二个JPanel:
class FirstPanel extends JPanel
{
private JButton button;
FirstPanel()
{
setLayout(null);
setVisible(true);
button = new JButton();
button.setBounds(x, y, width, height);
button.setFocusPainted(false);
button.setIcon(new ImageIcon(SecondPanel.class.getResource(filePath)));
button.setBackground(bgColor);
button.setForeground(Color.white);
button.setVisible(true);
Border emptyBorder = BorderFactory.createEmptyBorder();
button.setBorder(emptyBorder);
add(button);
ButtonActionHandler buttonActionHandler = new ButtonActionHandler();
}
public class ButtonActionHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
setVisible(true);
add(new SecondJPanel());
new SecondJPanel().setVisible(true);
}
} }
}
通过JFrame(来自另一个类)启动第一个面板有效,但是向第一个面板添加第二个JPanel无效。
真的很感谢任何帮助
答案 0 :(得分:0)
对不起,但您似乎不明白我在告诉您什么。
作曲是你的朋友。
我会这样:
public class JPanel1 extends JPanel {
private JButton button;
public JPanel1(ActionListener buttonListener) {
this.button = new Button("Push me");
this.button.addActionListener(buttonListener);
// do what's needed to add the button to the display.
}
}
public class JPanel2 extends JPanel {
private JButton button;
public JPanel2(ActionListener buttonListener) {
this.button = new Button("Push me");
this.button.addActionListener(buttonListener);
// do what's needed to add the button to the display.
}
}
public class TwoPanelFrame extends JFrame {
public TwoPanelFrame(JPanel p1, JPanel p2) {
// add the two panels to your frame and display.
}
}