如何删除后退按钮的文本。

当前返回按钮:

<返回

需要的后退按钮:

< 其他任何东西

这些都没有奏效:

self.navigationItem.backBarButtonItem?.title = "Back"
self.backItem?.title = ""
self.navigationController?.navigationBar.backItem?.title = ""
self.navigationItem.backBarButtonItem?.title = ""
self.navigationController?.navigationItem.backBarButtonItem?.title="Back"
self.navigationController?.navigationBar.backItem?.title = ""
self.navigationController?.navigationItem.backBarButtonItem?.title

当前回答

这对我很管用。斯威夫特5

navigationItem.backButtonTitle = ""

其他回答

有两种不同的方法来植入那部分,  

1.

navigationItem.backButtonTitle = "Title Goes Here"

(5)迅速

  2.

 let backButton = UIBarButtonItem()

backButton。title = "标题在这里" self.navigationController .navigationBar.topItem ?。backBarButtonItem = backButton

 

back按钮属于前一个视图控制器,而不是当前显示在屏幕上的那个。 要修改后退按钮,你应该在按之前更新它,添加viewdidload:

斯威夫特4:

self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: self, action: nil)
override func viewWillAppear(_ animated: Bool) {

    self.tabBarController?.navigationItem.title = "Notes"

    let sendButton = UIBarButtonItem(title: "New", style: .plain, target: self, action: #selector(goToNoteEditorViewController))

    self.tabBarController?.navigationItem.rightBarButtonItem = sendButton
}

func goToNoteEditorViewController(){
   // action what you want
}

希望能有所帮助!!3 #迅速

如果你对任何多星建议有问题,确保你在viewDidLoad()中注册你的UITableViewCells,而不是从init()

有两种方法。

1.在previousViewController.viewDidLoad()中

let backBarBtnItem = UIBarButtonItem()
backBarBtnItem.title = "back"
navigationItem.backBarButtonItem = backBarBtnItem

2.在currentviewcontroller。viewdidappear()中

let backBarBtnItem = UIBarButtonItem()
backBarBtnItem.title = "back"      
navigationController?.navigationBar.backItem?.backBarButtonItem = backBarBtnItem

原因:backButton来自navigationBar.backItem。backBarButtonItem,第一种方法很明显。在currentViewController.viewDidLoad()中,我们无法获得backItem的引用,因为在viewDidAppear()中,navigationBar将navigationView推入了它的堆栈。因此我们可以在currentViewController.viewDidAppear()中对backItem进行更改

更多细节,你可以看到文档:UINavigationBar