f***a
发帖数: 7 | 1 //the pop-up windows should better be Dialog or JDialog
// suppose your owner is a subclass of JFrame
class YourPopUp extends JDialog
{
private JFrame parent;
//or private OwnerClass parent
public YourPopUp(JFrame parent)
{
super(parent,"your title", true);
this.parent = parent;
}
// do anything on the parent
// might need casting somewhere
} | p*a
发帖数: 592 | 2 why not try firePropertyChange?
jFrame1 listens to PropertyChangeEvent of jFrame2
before jFrame2 closes, it fires a PropertyChange Event,
and jFrame1 gets it. | p*a
发帖数: 592 | 3 Java也有消息传递呀，只是你碰巧不知道罢了
这个问题完全可以用Property Change Event来
解决。
主窗口implements PropertyChangeListener
子窗口加一个PropertyChangeSupport Object,
然后用addPropertyChangeListener()把主窗口
加到它的PropertyChangeListener list里去
什么时候想要通知主窗口，调用firePropertyChange()
就可以了 |
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