Method changeView

src/main/java/org/swdc/reader/ui/MainView.java:86–96

()

    }

    private void changeView() {
        ToggleButton view = (ToggleButton) group.getSelectedToggle();
        BorderPane root = this.findById("content");
        Class userData = (Class) view.getUserData();
        if (ReaderView.class.equals(userData)) {
            root.setCenter(readerView.getView());
        } else if (ConfigureView.class.equals(userData)) {
            root.setCenter(configureView.getView());
        }
        root.requestLayout();
    }

    private void onToggleChange(Observable toggleObs, Toggle old, Toggle toggle){
        if (toggle == null) {