java - Java GUI在两秒钟后马虎

我正在努力使用Eclipse WindowBuilder GUI。我已经做了一个布局并且它确实起作用了，但是它在2-3秒后开始滞后并且非常慢。我已经用谷歌搜索了，找到了revalidate()，validate()，update()之类的东西，但是效果却差不多。您能指出我的地方不便吗，所以我不知道是什么原因导致我这样做，现在我很困惑。

源代码：

package forum;

import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JSeparator;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

public class ForumView {

private JFrame frame;
private JTextField txtUsr;
private JTextField txtPasswd;
private JSeparator separator;
private JTextField txtUsr_1;
private JTextField txtPasswd_1;
private JButton btnNewButton_1;
private JSeparator separator_1;
private JButton btnNewButton;
private JButton btnNewButton_2;
private JButton btnNewButton_3;
private JButton btnAddPicture;
private JButton btnNewButton_4;
private JButton btnBack;
private JButton btnSortAlphabetically;
private JButton btnNewButton_5;
private JLabel lblNewLabel;


/**
 * Launch the application.
 */
public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run() {
            try {
                ForumView window = new ForumView();
                window.frame.setVisible(true);
                window.frame.update(window.frame.getGraphics());
                window.frame.revalidate();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });
}

/**
 * Create the application.
 */
public ForumView() {
    initialize();

}

public void redrawMethod() {
    frame.repaint();
    txtUsr.repaint();
    txtPasswd.repaint();
    btnNewButton.repaint();
    separator_1.repaint();
    separator.repaint();

    txtUsr_1.repaint();
    txtPasswd_1.repaint();
    btnNewButton_1.repaint();
    separator_1.repaint();
    btnNewButton.repaint();
    btnNewButton_2.repaint();
    btnNewButton_3.repaint();
    btnAddPicture.repaint();
    btnNewButton_4.repaint();
    btnBack.repaint();
    btnSortAlphabetically.repaint();
    btnNewButton_5.repaint();
    lblNewLabel.repaint();
}

/**
 * Initialize the contents of the frame.
 */
private void initialize() {
    frame = new JFrame();
    frame.setBounds(100, 100, 1318, 814);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().setLayout(null);

    txtUsr = new JTextField();

    txtUsr.setBounds(10, 11, 86, 28);
    frame.getContentPane().add(txtUsr);
    txtUsr.setColumns(10);

    txtPasswd = new JTextField();

    txtPasswd.setBounds(10, 42, 86, 28);
    frame.getContentPane().add(txtPasswd);
    txtPasswd.setColumns(10);

    btnNewButton = new JButton("Login");
    btnNewButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            System.out.println(txtUsr.getText());
        }
    });
    btnNewButton.setBounds(106, 10, 89, 23);
    frame.getContentPane().add(btnNewButton);

    separator = new JSeparator();
    separator.setOrientation(SwingConstants.VERTICAL);
    separator.setBounds(205, 11, 2, 51);
    frame.getContentPane().add(separator);

    txtUsr_1 = new JTextField();
    txtUsr_1.setText("usr");
    txtUsr_1.setBounds(217, 11, 86, 28);
    frame.getContentPane().add(txtUsr_1);
    txtUsr_1.setColumns(10);

    txtPasswd_1 = new JTextField();
    txtPasswd_1.setText("passwd");
    txtPasswd_1.setBounds(217, 42, 86, 28);
    frame.getContentPane().add(txtPasswd_1);
    txtPasswd_1.setColumns(10);

    btnNewButton_1 = new JButton("register");
    btnNewButton_1.setBounds(313, 10, 89, 23);
    frame.getContentPane().add(btnNewButton_1);

    separator_1 = new JSeparator();
    separator_1.setBounds(10, 73, 1282, 2);
    frame.getContentPane().add(separator_1);

    btnNewButton_2 = new JButton("Add topic");
    btnNewButton_2.setEnabled(false);

    btnNewButton_2.setBounds(10, 120, 100, 23);
    frame.getContentPane().add(btnNewButton_2);

    btnNewButton_3 = new JButton("Passwd change");
    btnNewButton_3.setEnabled(false);
    btnNewButton_3.setBounds(10, 154, 100, 23);
    frame.getContentPane().add(btnNewButton_3);

    btnAddPicture = new JButton("Add picture");
    btnAddPicture.setEnabled(false);
    btnAddPicture.setBounds(10, 186, 98, 26);
    frame.getContentPane().add(btnAddPicture);

    btnNewButton_4 = new JButton("Logout");
    btnNewButton_4.setBounds(106, 43, 89, 26);
    frame.getContentPane().add(btnNewButton_4);

    btnBack = new JButton("Back");
    btnBack.setEnabled(false);
    btnBack.setBounds(10, 223, 98, 26);
    frame.getContentPane().add(btnBack);

    btnSortAlphabetically = new JButton("Sort Alphabetically");
    btnSortAlphabetically.setEnabled(false);
    btnSortAlphabetically.setBounds(10, 257, 98, 26);
    frame.getContentPane().add(btnSortAlphabetically);

    btnNewButton_5 = new JButton("Add Comment");
    btnNewButton_5.setEnabled(false);
    btnNewButton_5.setBounds(10, 294, 98, 26);
    frame.getContentPane().add(btnNewButton_5);

    lblNewLabel = new JLabel("No Photo");
    lblNewLabel.setBounds(420, 11, 55, 51);
    frame.getContentPane().add(lblNewLabel);
    frame.validate();
    txtUsr.validate();
    txtPasswd.validate();
    separator.validate();
    txtUsr_1.validate();
    txtPasswd_1.validate();
    btnNewButton_1.validate();
    separator_1.validate();
    btnNewButton.validate();
    btnNewButton_2.validate();
    btnNewButton_3.validate();
    btnAddPicture.validate();
    btnNewButton_4.validate();
    btnBack.validate();
    btnSortAlphabetically.validate();
    btnNewButton_5.validate();
    lblNewLabel.validate();

    }
}

谢谢。

编辑：
现在，“主” GUI可以使用，但其他所有功能都处于冻结状态。我使用openfile对话框打开图像文件，但是该对话框也冻结了。这是我尝试过的代码：

btnAddPicture.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent arg0) {
            frame.createBufferStrategy(2);
            frame.validate();
            frame.repaint();
            final JFileChooser fc = new JFileChooser();
            //RepaintManager.currentManager(fc).setDoubleBufferingEnabled(true);
             System.out.println(RepaintManager.currentManager(fc).isDoubleBufferingEnabled());
            //returns true
            //fc.repaint();
            // in response to a button click:
            int returnVal = fc.showOpenDialog(frame);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = fc.getSelectedFile();

            } else {
                System.out.println("Open command cancelled by user.");
            }
        }
    });

编辑2：
在Linux机器上，所有东西都像魅力。

最佳答案

我测试了该代码，对我来说很好用。窗口将打开约2分钟，一切正常。滞后何时开始？单击按钮时？移动窗户？

关于java - Java GUI在两秒钟后马虎，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/22962829/