override func viewDidLoad() {
        super.viewDidLoad()
        self.backgroundImage = UIImage(named: "bg2.jpeg")! //设置背景图
        //self.transformWithScale = false	//不缩放，默认缩放
        //self.allowSpringAnimation = false		//不允许弹簧效果, 默认有弹簧效果
        //self.leftMenuBarItemTitle = "Menu"	//设置导航栏的菜单按钮文字，如果不设置，会使用默认的
        //self.leftMenuBarItemImage = ""	//设置导航栏的菜单按钮的图片，如果不设置，会使用默认的
        
        let rootView = HUFirstViewController()
        let secView = HUSecondViewController()
        let thirdView = HUThirdViewController()
        
        self.viewControllers = [rootView, secView, thirdView]   //设置左侧所有要显示的控制器，不要添加NavigationViewcontroller
    }

    override func numberOfItems() -> Int {	//左侧菜单数目
        return menuItems.count
    }

    override func leftMenu(menu: HULeftMenu, menuItemAtIndex index: Int) -> AnyObject {
        let item = menu.menuItemAtIndex(index) as! HUMenuItenCell
        /**
		*	这里设置菜单样式，标题，图标，选中颜色等
        */
        return item
    }

	func headerViewForLeftMenu(menu: HULeftMenu) -> UIView? {
        var view = UIView(frame: CGRect(x: 0, y: 0, width: self.view.bounds.width, height: 120))
   
        var icon = UIImageView(frame: CGRect(x: 40, y: 40, width: 60, height: 60))
        icon.image = UIImage(named: "user.jpg")
        icon.layer.cornerRadius = 30
        icon.layer.masksToBounds = true
        view.addSubview(icon)
        
        return view
    }