Question

如何对 NavigationController 的返回按钮自定义

Answer 1

在B视图的viewDidLoad中设置给NavigationController设置一个新的左边bar，添加一个处理点击返回按钮的方法

override func viewDidLoad {
super.viewDidLoad()
self.navigationItem.hidesBackButton = true
let newBackButton = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.Plain, target: self, action: "back:")
self.navigationItem.leftBarButtonItem = newBackButton;
}

func back(sender: UIBarButtonItem) {
// Perform your custom actions
// ...
// Go back to the previous ViewController
self.navigationController?.popViewControllerAnimated(true)
}