//设置导航栏背景色
self.navigationController?.navigationBar.barTintColor = kNavColor
//设置标题背景色
let dict:NSDictionary = [NSAttributedString.Key.foregroundColor: UIColor.white]
self.navigationController?.navigationBar.titleTextAttributes = dict as? [NSAttributedString.Key :AnyObject ]
self.navigationController?.navigationBar.isTranslucent = false
