提高线程速度[关闭]

每次调用线程后，其速度都会增加（特别是 - FirstCircleRepaintThread、SecoundCircleRepaintThread、LineRepaintThread）。但主线程速度正常。我读了this https://stackoverflow.com/questions/17116344/losing-accuracy-as-thread-speed-increases问题，但我的线程的速度是always增加。GitHub https://github.com/rberla/rest5min, Dropbox 上的 JAR https://www.dropbox.com/s/26iwcnbftqgh3y5/Rest5MinsV0.32_SOF.jar附：对不起，我的英语不好

问题是，每次你unblock您正在创建线程的新实例，但您没有停止旧线程，因此它们仍在运行，更新您的 UI

public void block() {
    setVisible(true);

    // Create a bunch of new threads...        
    firstCircleThr = new FirstCircleRepaintThread();
    firstCircleThr.setPriority(Thread.MAX_PRIORITY);
    firstCircleThr.start();
    secoundCircleThr = new SecoundCircleRepaintThread();
    secoundCircleThr.setPriority(Thread.MAX_PRIORITY);
    secoundCircleThr.start();
    lineThr = new LineRepaintThread();
    lineThr.setPriority(Thread.MAX_PRIORITY);
    lineThr.start();
}

public void unblock(){

    setVisible(false);
    // Dereference the old ones, but they are still running...        
    firstCircleThr = null;
    secoundCircleThr = null;
    lineThr = null;
    System.out.println("Yeah! OFF IT!");
}

例如...

public class FirstCircleRepaintThread extends Thread{


    public static final long SPEED_OF_ROTATING = 25L;

    @Override
    public void run(){
        //while(true){

            MainCycle.frame.panel.startAngleFirst = 34;
            int i = 0;

            Random r = new Random();

            // To infinity and beyond...                
            while(true){

你需要提供一些方法来停止这些线程......而不调用stop...

例如...

public class FirstCircleRepaintThread extends Thread{

    private volatile boolean keepRunning = true;

    public static final long SPEED_OF_ROTATING = 25L;

    public void kull() {

        keepRunning = false;
        interrupt();
        try {
            join();
        } catch (InterruptedException ex) {
        }

    }

    @Override
    public void run(){
        //while(true){

            MainCycle.frame.panel.startAngleFirst = 34;
            int i = 0;
            Random r = new Random();

            while(keepRunning){

现在在你身上block方法，你应该调用firstCircleThr.kull()，这将停止Thread回来之前...

如果您使用调试器或在周期之间保持框架可见，您可能会看到这一点......

现在，说了这么多，您违反了 Swing 的单线程规则，从除事件调度线程之外的每个线程更新 UI 的状态。

看一眼Swing 中的并发 http://docs.oracle.com/javase/tutorial/uiswing/concurrency/并考虑使用SwingWorker http://docs.oracle.com/javase/tutorial/uiswing/concurrency/worker.html or Swing Timer http://docs.oracle.com/javase/tutorial/uiswing/misc/timer.html.

您应该考虑维护尽可能少的后台进程，以保持性能并降低更改模型和接口的复杂性