从后退按钮中删除以前的视图控制器文本

Question

我想从后退按钮中删除 "previous view controller's text"。正如您在示例中看到的那样，我有 "corals anatomy" 我想删除，如果可能的话只有 "Back"，甚至删除人字形。

我试过很多像：

    navigationItem.backBarButtonItem?.title = "Test"
    navigationItem.backBarButtonItem = UIBarButtonItem(title: "Test", style: .Plain, target: nil, action: nil)
    navigationItem.leftBarButtonItem?.title = "Test"

None 个有效。

有什么想法吗？

Answer 1

你可以这样试试：

let newBackButton: UIBarButtonItem = UIBarButtonItem(title: "Back", style: .Plain, target: self, action: "btnBack")
self.navigationItem.backBarButtonItem = newBackButton

//handle the back click 

func btnBackClicked() {
   self.navigationController?.popToRootViewControllerAnimated(true)
}

Answer 2

我用Objective-C:

UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:IS_IOS7?@"":@"返回" style:UIBarButtonItemStylePlain target:nil action:nil];

[controller.navigationItem setBackBarButtonItem:backButton];

Answer 3

您可以通过在 viewDidLoad() 中设置导航项的 leftBarButtonItem 来自定义后栏按钮项，如下所示

override func viewDidLoad() {
        super.viewDidLoad()

        let backButton:UIBarButtonItem = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.Done, target: self, action: "backBtnAction:")
        self.navigationItem.leftBarButtonItem = backButton
    }

    @IBAction func backBtnAction(sender:UIBarButtonItem)
    {
       //your code here
    }

从后退按钮中删除以前的视图控制器文本

Remove previous view controller text from back button

ios

swift