Java 外部多线程

Question

我有下一个问题：

我正在使用 Java 中的 2 个类，它们都扩展了 Thread，但我希望这些线程并行运行。

这是我的示例：带有用于进度条动画的线程的动画类和另一个带有用于启动应用程序启动画面的线程的类（12 秒），当我实现时，我看到了 Splash，但我没有看到动画进度条。

主类：

public class Run extends AppController {

    private final static Logger LOGGER = Logger.getLogger(Run.class.getName());
    public static Splash splash;

    public Run() {
    }

    /**
     * Application main class.
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        
        // application splash form
        splash = new Splash(I18n.CUSTOMERS.getString("App.Title"),
                ViewHelpers.ICONS16 + "app.png",
                ViewHelpers.IMAGES + "splash.png");
        
        splash.setVisible(true);

        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                
                try {
                    controller = new Run();
                    controller.setSplash(splash);
                    Thread.sleep(12000);
                    
                } catch (InterruptedException ex) {
                    LOGGER.log(Level.SEVERE, null, ex);
                }
                controller.start();
            }
        });
    }
}

Splash 类：

public class Splash extends JFrame {

    //Title of Splash form.
    private final String title;
    //Icon path of Splash form.
    private final String iconPath;
    //Image path of Splash form.
    private final String imagePath;
    
    static JProgressBar progressBar;

    /**
     * Create splash form
     * 
     * @param title title of splash form for taskbar
     * @param iconPath icon path for taskbar
     * @param imagePath image path for splash form
     */
    public Splash(String title, String iconPath, String imagePath) {
        this.title = title;
        this.iconPath = iconPath;
        this.imagePath = imagePath;

        initComponents();
    }

    private void initComponents() {
        setTitle(title);
        setIconImage(new ImageIcon(getClass().getResource(iconPath)).getImage());
        JLabel imgSplash = new JLabel(new ImageIcon(getClass().getResource(imagePath)));
        
        setResizable(false);
        setUndecorated(true);
        setAlwaysOnTop(true);
        
        progressBar = new JProgressBar(0, 100);
        progressBar.setValue(0);
        progressBar.setStringPainted(true);
        progressBar.setPreferredSize(new Dimension(40, 20));
        
        getContentPane().add(imgSplash, BorderLayout.CENTER);
        getContentPane().add(progressBar, BorderLayout.SOUTH);
        pack();
        setLocationRelativeTo(null);

            animation fill = new animation();
            fill.start();
    }
    
    // function to increase progress 
    public class animation extends Thread implements Runnable{

        public void run(){
             int i = 0;
                try { 
                     for(i=1; i <= 100; i++){ 
                        // fill the menu bar 
                        progressBar.setValue(i); 
                        progressBar.repaint(); 
                        // delay the thread 
                        Time.time(250); 
                    } 
                } 
                catch (Exception e) { 
                    e.printStackTrace();
                } 
        }
    }
}

最后是控制器类：

public abstract class AppController {

    public static AppController controller;
    protected AppView appView;
    private Splash splash;

    public AppController() {
    }

    /** Start the application and show the application view. **/
    public void start() {

        if (splash != null) {
            splash.setVisible(false);
            splash.dispose();
        }

        //launch the next window
        appView = new AppView(I18n.CUSTOMERS.getString("App.Title"));
        appView.setVisible(true);
    }

    public void setSplash(Splash splash) {
        this.splash = splash;
    }
}

Answer 1

与此相关，我插入打印件进行验证，我的打印件现在可以正常工作，但我的进度条是错误的。为什么？

    SwingUtilities.invokeLater(new Runnable() {
        @Override
        public void run() {
            controller = new Run();
            
            try {
                controller.setSplash(splash);
                System.out.println("SPLASH RUN");
                Thread.sleep(10000);
                
            } catch (InterruptedException ex) {
                LOGGER.log(Level.SEVERE, null, ex);
            }
            System.out.println("SPLASH END");
            controller.start();
        }
    });




// function to increase progress 
public class animation extends Thread implements Runnable{

    public void run(){
        int i = 0;
            while(i <= 100){
                if(i<100){
                    // fill the menu bar 
                    progressBar.setValue(i); 
                    progressBar.repaint(); 
                    // delay the thread 
                    Time.time(1000); 
                    System.out.println("ANIMATION RUN"+i);
                }
                else{
                    progressBar.setValue(100);
                    System.out.println("ANIMATION END");
                    break;
                }
            i=i+10;
            }
    } 
}

结果如下： 动画 RUN0, 飞溅运行 动画RUN10， 动画RUN20， 动画RUN30， 动画RUN40， 动画RUN50， 动画RUN60， 动画RUN70， 动画RUN80， 动画RUN90， 动画结束 飞溅结束