问JavaFX: WindowEvent.WINDOW_HIDDEN

EN

import javafx.event.EventHandler;
import javafx.stage.WindowEvent;

public class JavaFXMyWindowListener implements EventHandler<WindowEvent>{

    @Override
    public void handle(WindowEvent event) {

        System.out.println("WindowEvent: " +  event.getEventType());

        if(event.getEventType() == WindowEvent.WINDOW_CLOSE_REQUEST){
            System.out.println("Window closed");
            event.consume();
        }

        if(event.getEventType() == WindowEvent.WINDOW_SHOWING){
            System.out.println("Window activ");
        }

        if(event.getEventType() == WindowEvent.WINDOW_SHOWN){
            System.out.println("Window opened");
        }

        if(event.getEventType() == WindowEvent.WINDOW_HIDDEN){
            System.out.println("Window minimized");
        }

        if(event.getEventType() == WindowEvent.WINDOW_HIDING){
            System.out.println("Window is going to be minimized");
        }

    }

}

stage.addEventHandler(WindowEvent.ANY, new JavaFXMyWindowListener());

stage.iconifiedProperty().addListener(new ChangeListener<Boolean>() {
      @Override public void changed(ObservableValue<? extends Boolean> prop, Boolean oldValue, Boolean newValue) {
          if(newValue){
              System.out.println("Window minimized");
          }else{
              System.out.println("Window was minimized and gets back now");
          }
      }
});