the listener(iconifiedProperty) not be invoke after user click taskbar to Deiconified the window.

primaryStage.initStyle(StageStyle.TRANSPARENT);
......... ....
primaryStage.iconifiedProperty().addListener(new ChangeListener<Boolean>() {

@Override
public void changed(ObservableValue<? extends Boolean> arg0,
Boolean arg1, Boolean arg2) {
// TODO Auto-generated method stub
System.out.println("----------------------------------");
System.out.println("arg0 =" + arg0);
System.out.println("arg1 =" + arg1);
System.out.println("arg2 =" + arg2);
}
});