Create a SubWindow in a View

Vaadin 6 / 7 / 8
1

I use vaadin 8.
I have the following class, in which i want to create a SubWindow:

@CDIView("TitleView")
public class TitleView extends VerticalLayout implements View {
	private Button details;

	public TitleView(TitleService service) {
		Button details = new Button("details");
		details.addClickListener(event -> showDetails());

		HorizontalLayout tb = new HorizontalLayout(details);
		addComponent(tb);
	}

	private void showDetails() {
        // Create a sub-window and set the content
        Window subWindow = new Window("Sub-window");
        VerticalLayout subContent = new VerticalLayout();
        subWindow.setContent(subContent);

        // Put some components in it
        subContent.addComponent(new Label("Meatball sub"));
        subContent.addComponent(new Button("Awlright"));

        // Center it in the browser window
        subWindow.center();

        // Open it in the UI, but not work
        addWindow(subWindow);
		=> Error !!!!!!!!!!!!!!!!!!!!!!!
	}

How can i add the Window to the View?

2

In Vaadin you cannot add Window into view. Windows are always added via UI. In your case this means that you need to change
addWindow(subWindow); → getUI().addWindow(subWindow);

3

Thanks
Now it works

4

Hi, any idea on how it needs to be done in Vaadin 14. Tried this getUI().get().add(windowScreen);
But this doesn’t work.