public ListUsersForm()
    {
        setTitle("list Users");
        List<User> list = userService.getAllUsers();
        setLayout(new BoxLayout(BoxLayout.Y_AXIS));
        for(User user : list)
        {
           Container container = userContainer(user) ;
           add(container);
        }

    }


    public Container userContainer(User user)
    {
        Container container = new Container(new BoxLayout(BoxLayout.X_AXIS)) ;
        Container containery = new Container(new BoxLayout(BoxLayout.Y_AXIS)) ;
        Label labelNom = new Label("Nom :" + user.getNom()) ;
        Label labelPrenom = new Label("Prenom : " + user.getPrenom()) ;
        EncodedImage placeholder = EncodedImage.createFromImage(com.codename1.ui.Image.createImage(400,300), true);
        URLImage background = URLImage.createToStorage(placeholder, "im.jpg",
                "http://lofrev.net/wp-content/photos/2017/05/user_logo.png");
        background.fetch();
        containery.addAll(labelNom,labelPrenom) ;
        ImageViewer imageViewer = new ImageViewer(background);
        container.addAll(imageViewer,containery) ;

        labelNom.addPointerReleasedListener((evt) -> {
                   UserInfoForm userInfoForm = new UserInfoForm(user) ;
                   userInfoForm.show();
        });

        container.setLeadComponent(labelNom);

        return container ;
    }