Question

有没有比JFileChooser更好的选择。我想在我的应用程序和Java JFileChooser中查看窗口。有没有办法自定义JFileChooser或更改外观。我知道外观和感觉，但这将符合我的目的。 JFileChooser可以工作，但它有80年代的老版本，这不是我想要的，也不是程序的用户。

问题：您能否将JFileChooser变成Microsoft外观？

代码：

package TestMenu;

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class FileChooserDemo extends JPanel implements ActionListener {
    private static final long serialVersionUID = 1L;
    static private final String newline = "\n";
    JButton openButton;
    JButton saveButton;
    JTextArea log;
    JFileChooser fc;

    public FileChooserDemo() {
        super(new BorderLayout());

        log = new JTextArea(5,20);
        log.setMargin(new Insets(5,5,5,5));
        log.setEditable(false);
        JScrollPane logScrollPane = new JScrollPane(log);

        fc = new JFileChooser();

        openButton = new JButton("Open a File...");
        openButton.addActionListener(this);

        saveButton = new JButton("Save a File...");
        saveButton.addActionListener(this);

        JPanel buttonPanel = new JPanel(); //use FlowLayout
        buttonPanel.add(openButton);
        buttonPanel.add(saveButton);

        add(buttonPanel, BorderLayout.PAGE_START);
        add(logScrollPane, BorderLayout.CENTER);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == openButton) {
            int returnVal = fc.showOpenDialog(FileChooserDemo.this);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                log.append("Opening: " + file.getName() + "." + newline);
            } else {
                log.append("Open command cancelled by user." + newline);
            }
            log.setCaretPosition(log.getDocument().getLength());
        } else if (e.getSource() == saveButton) {
            int returnVal = fc.showSaveDialog(FileChooserDemo.this);
            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();
                log.append("Saving: " + file.getName() + "." + newline);
            } else {
                log.append("Save command cancelled by user." + newline);
            }
            log.setCaretPosition(log.getDocument().getLength());
        }
    }

    protected static ImageIcon createImageIcon(String path) {
        java.net.URL imgURL = FileChooserDemo.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
        }
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("FileChooserDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.add(new FileChooserDemo());

        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        createAndShowGUI();
     }
}

Answer 1

原因是，如果您使用的是Microsoft平台，请尝试使用JFrame类

try {
      UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (ClassNotFoundException ex) {
        Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
    } catch (UnsupportedLookAndFeelException ex) {
        Logger.getLogger(MainFrame.class.getName()).log(Level.SEVERE, null, ex);
    }

将JFileChooser更改为Microsoft外观？

1 个答案: