Question

所以我目前正在做一个项目，我想知道我正在做的事情是否可行。我的想法是创建 3 个框架，每个数据库表一个。然后我会有一个带有“Customer”的按钮，当点击它时，它将使所有其他框架及其组件不可见，同时保持它自己的框架可见。这是可能的还是有更简单的方法？是否可以为每个框架创建 3 个不同的类并将它们链接起来？我把我的代码留在下面，这样你就可以更好地了解我正在尝试的东西。

public class Main extends JFrame {

    public Main(){
        // Attach window listener
        addWindowListener(new WindowCloser()); // Just in-case it's needed

        // Adding first customer panel
        JPanel pCustomerL = new JPanel();
        pCustomerL.setBounds(0,0,750,750);
        pCustomerL.setBackground(Color.BLUE);
        // Adding second customer panel
        JPanel pCustomerR = new JPanel();
        pCustomerR.setBounds(750,0,750,750);
        pCustomerR.setBackground(Color.BLACK);
        // Adding first product panel
        JPanel pProductL = new JPanel();
        pProductL.setBounds(0,0,750,750);
        pProductL.setBackground(Color.YELLOW);
        // Adding second product panel
        JPanel pProductR = new JPanel();
        pProductR.setBounds(750,0,750,750);
        pProductR.setBackground(Color.GREEN);
        // Adding first invoice panel
        JPanel pInvoiceL = new JPanel();
        pInvoiceL.setBounds(0,0,750,750);
        pInvoiceL.setBackground(Color.BLUE);
        // Adding second invoice panel
        JPanel pInvoiceR = new JPanel();
        pInvoiceR.setBounds(750,0,750,750);
        pInvoiceR.setBackground(Color.BLACK);

        // Button Listener
        ButtonListener listener = new ButtonListener();
        // Adding "Customer" Button
        JButton b = new JButton("Invoice");
        b.addActionListener(listener);
        add(b);
        b.setBounds(1300,10,150,35);
        // Adding "Product" Button
        b = new JButton("Product");
        b.addActionListener(listener);
        add(b);
        b.setBounds(1150,10,150,35);
        // Adding "Invoice" Button
        b = new JButton("Customer");
        b.addActionListener(listener);
        add(b);
        b.setBounds(1000,10,150,35);

        // Frame Settings
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLayout(null);
        this.setSize(1500,750);

        // Customer Panel
        this.add(pCustomerL);
        this.add(pCustomerR);
        // Product Panel
       // this.add(pProductL);
       // this.add(pProductR);
        // Invoice Panel
        this.add(pInvoiceL);
        this.add(pInvoiceR);

        // Customer Panel Settings
        pCustomerL.setVisible(false);
        pCustomerR.setVisible(false);
        // Product Settings
        pProductL.setVisible(true);
        pProductR.setVisible(true);
        // Invoice settings
        pInvoiceL.setVisible(false);
        pInvoiceR.setVisible(false);
        this.setVisible(true);
    }

    // Listener for buttons
    class ButtonListener implements ActionListener {
        public void actionPerformed(ActionEvent evt) {
            String buttonLabel = evt.getActionCommand();
        }
    }

    // Listener for window
    class WindowCloser extends WindowAdapter {
        public void windowClosing(WindowEvent evt) { System.exit(0);}
    }
public static void main(String[] args) {
    new Main();
}

}

Answer 1

当您必须在 Java 中的同一个 Windows 应用程序中控制多个面板时，最推荐的选项是使用 JTabedPane 组件。在其中，您可以根据需要设置不同的面板并更轻松地隐藏/显示它们。

 // In this case the look and feel renders the title for the tab.
 tabbedPane.addTab("Tab", myComponent);
 // In this case the custom component is responsible for rendering the
 // title of the tab.
 tabbedPane.addTab(null, myComponent);
 tabbedPane.setTabComponentAt(0, new JLabel("Tab"));

如果您有兴趣，请尝试对此进行更多研究。

https://docs.oracle.com/javase/7/docs/api/javax/swing/JTabbedPane.html

我可以使用按钮使框架在可见和不可见之间切换吗？

1 个答案: