java - 动画线程和 EDT

Question

正如我在 earlier post 上与 Inerdia 讨论的那样,
事情仍然很奇怪当我在一些 JPanel 中(肯定是 EDT - 我用方法检查进行了检查)然后我调用一些动画线程(线程扩展线程)来启动时，在线程内部我没有通过检查进入 EDT .
所以我想我应该是因为动画应该在 EDT 上，所以我用 runnable 和 invokeAndWait() 包装了 animate 方法，但仍然在动画线程中得到了我不在 EDT 上的信息，同时调用了我之前所说的代码是在 EDT 上，所以，我的 invokeLater 似乎没有将该动画放在 EDT 上？这是为什么？

相关代码(在用 runnable 包装 animate 方法并传递给稍后调用之前:
因此，在 JPanel 上有一行:

Animate(trainRailRoadTrack);  

实现是:

void Animate(ArrayList<RailroadSquare> i_TrainRailRoadTrack) {
    ArrayList<JPanelRailoadSquare> playerRailoadPanelsTrack = getRelevantRailroads(i_TrainRailRoadTrack);
    new SuspendedAnimation(playerRailoadPanelsTrack).start();
    jPanelBoard1.GetGameManager().EmptyPlayerSolution();
}

private class SuspendedAnimation extends Thread
{
    private ArrayList<JPanelRailoadSquare> m_PlayerRailoadPanelsTrack;

    public SuspendedAnimation(ArrayList<JPanelRailoadSquare> i_PlayerRailoadPanelTrack)
    {
        m_PlayerRailoadPanelsTrack = i_PlayerRailoadPanelTrack;
    }

    @Override
    public void run()
    {
       m_IsAnimationNeeded = true;
       for (JPanelRailoadSquare currRailoadSquare: m_PlayerRailoadPanelsTrack)
       {
           System.out.println("Is on Event dispatch thread: "+SwingUtilities.isEventDispatchThread());
           currRailoadSquare.SetGoingTrain();
           repaint();                            
           try
           {
               Thread.sleep(150);

           }
           catch (InterruptedException e){}
           currRailoadSquare.UnSetGoingTrain();
           repaint();                       
    }
}

Answer 1

在 SuspishedAnimation.run() 内，您不在 EDT 上。这就是您需要使用 invokeLater() 的地方，而不是在调用 Animate() 时:

@Override
public void run()
{
    // We're outside the EDT in most of run()
    m_IsAnimationNeeded = true;
    for (JPanelRailoadSquare currRailoadSquare: m_PlayerRailoadPanelsTrack)
    {
        SwingUtilities.invokeAndWait(new Runnable() {
            // The code that "talks" to Swing components has to be put on
            // the EDT
            currRailoadSquare.SetGoingTrain();
            repaint();
        });

        // We want to keep sleeping outside the EDT.
        try
        {
            Thread.sleep(150);
        }
        catch (InterruptedException e){}

        SwingUtilities.invokeAndWait(new Runnable() {
            currRailoadSquare.UnSetGoingTrain();
            repaint();                       
        }
    }
}