java - 从 EDT 调用 invokeAndWait

Question

我的 previous problem 有问题.我在代码库的其他地方也有代码 SwingUtillities.invokeAndWait，但是当我删除它时，gui 不会刷新。如果我不删除它，我得到的错误是:

Exception in thread "AWT-EventQueue-0" java.lang.Error: Cannot call invokeAndWait from the event dispatcher thread
 at java.awt.EventQueue.invokeAndWait(Unknown Source)
 at javax.swing.SwingUtilities.invokeAndWait(Unknown Source)
 at game.player.humanplayer.model.HumanPlayer.act(HumanPlayer.java:69)

HumanPlayer.act 中的代码是:

public Action act(final Action[] availiableActions) {
  try {

   SwingUtilities.invokeAndWait(new Runnable() {
    @Override
    public void run() {
     gui.update(availiableActions);
    }
   });
  }
  catch (InterruptedException e) {
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   e.printStackTrace();
  }

  synchronized(performedAction){
   while(!hasPerformedAction()){
    try {
     performedAction.wait();
    } catch (InterruptedException e) {
     e.printStackTrace();
    }
   }
   setPerformedAction(false); 
  }

  return getActionPerfomed();
 }

由于屏幕不绘制而处于调试状态时的线程图像: alt text http://img684.imageshack.us/img684/6669/69288941.png

堆栈的文本版本:

ui.startup.LoginScreen at localhost:51050
 -> Deamon Thread [AWT-Windows] (Running)
 -> Thread [AWT-Shutdown] (Running)
 -> Thread [AWT-EventQueue-0] (Running)
 -> Thread [DestroyJavaVM] (Running)

Answer 1

答案是而不是打电话

new GameInitializer(userName, player, Constants.BLIND_STRUCTURE_FILES.get(blindStructure), handState);

从 EDT 开始，让它在新的(非 EDT)线程上执行，以便稍后在调用 invokeAndWait 时它可以正常运行，因为运行该命令的线程不是 EDT。修改后的代码如下:

Thread t = new Thread(new Runnable() {
    @Override
    public void run() {
       new GameInitializer(userName, player, Constants.BLIND_STRUCTURE_FILES.get(blindStructure), handState);       
    }

   });
t.start();