swift 代码片段

• 设置导航栏颜色

UIApplication.sharedApplication().setStatusBarHidden(true,withAnimation: .None)
        self.navigationController?.navigationBar.lt_setBackgroundColor(UIColor.blackColor())
        self.navigationController?.navigationBar.tintColor = UIColor.whiteColor()
        self.navigationController?.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.whiteColor()]

• test