Swift - NavigationBar Tips

设置导航栏背景色为透明

navigationController?.navigationBar.setBackgroundImage(UIImage(), for: .default)

隐藏导航栏下方的线条

navigationController?.navigationBar.shadowImage = UIImage()

设置导航栏的背景色

 navigationController?.navigationBar.barTintColor = UIColor.white

设置导航栏背景不为半透明

 navigationController?.navigationBar.isTranslucent = false