drawer = Drawer.newDrawer(jfram)
        .background(new Color(90, 90, 90))
        .enableScroll(true)
        .header(new JLabel("Header"))
        .space(3)

        .addChild(new DrawerItem("User ").icon(new ImageIcon(getClass().getResource("/icon/user.png"))).build())
        .addChild(new DrawerItem("Contacts").icon(new ImageIcon(getClass().getResource("/icon/cont.png"))).build())

        .addFooter(new DrawerItem("Exit").icon(new ImageIcon(getClass().getResource("/icon/exit.png"))).build())

        .event(new EventDrawer() {
            @Override
            public void selected(int index, DrawerItem item) {
                if (drawer.isShow()) {
                    drawer.hide();
                }
                //  More code here
            }
        })
        .build();

if (drawer.isShow()) {
    drawer.hide();
} else {
    drawer.show();
}