一. 左右跳转:
//实例化一个将要跳转的 viewController
let secondView = SecondViewController()
//跳转
self.navigationController?.pushViewController(secondView , animated: true)
返回上一级:
self.navigationController?.popViewController(animated: true)
返回顶级(根页面):
self.navigationController?.popToRootViewController(animated: true)
override func viewDidLoad() {
super.viewDidLoad()
//插入这两句,所有这个页面对应的子页面的"<Back"都改成中文的"<返回"了
let item = UIBarButtonItem(title: "返回", style: .plain, target: self, action: nil)
self.navigationItem.backBarButtonItem = item
...
}
原文：http://www.cnblogs.com/zrcx/p/7229091.html