从EDT调用invokeAndWait

Question

我之前的问题出现问题.我还在代码库中的SwingUtillities.invokeAndWait其他地方有代码,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();
 }

调试时屏幕上的线程图像不显示: 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

答案不是拨打电话

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

从EDT开始,使它在新的(非EDT)线程上执行,以便稍后invokeAndWait调用时它的运行正常,因为运行该命令的线程不是EDT.修订后的代码如下:

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

   });
t.start();

Answer 2

invokeAndWait()旨在从非 GUI 线程调用。它将一个Runnable对象发送到将在那里执行的 GUI 线程。

将Runnable对象从 GUI 线程发送到自身是没有意义的。它与调用同样的效果run()上Runnable直接对象。