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
Swift 4.2
let backItem = UIBarButtonItem()
backItem.title = ""
navigationItem.backBarButtonItem = backItem
其他回答
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。 要修改返回按钮，你应该在按之前更新它，在启动segue的视图控制器上:
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let backItem = UIBarButtonItem()
backItem.title = "Something Else"
navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}
Swift 3,4和5:
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
let backItem = UIBarButtonItem()
backItem.title = "Something Else"
navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}
OR
// in your viewDidLoad or viewWillAppear
navigationItem.backBarButtonItem = UIBarButtonItem(
title: "Something Else", style: .plain, target: nil, action: nil)
自我。标题= "" 之前self.navigationController ?。pushViewController(vc, animated: true)。
你可以在故事板中修改NavigationItem
在后退按钮中添加一个空格并按Enter。
注意:在之前的VC中这样做。
你可以把这3行代码放到ViewController中你想要改变返回按钮的标题。
在你的重载函数中viewDidLoad(){}。
let backButton = UIBarButtonItem()
backButton.title = "My Back Button Title"
self.navigationController?.navigationBar.topItem?.backBarButtonItem = backButton
Swift 4.2
let backItem = UIBarButtonItem()
backItem.title = ""
navigationItem.backBarButtonItem = backItem
