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
在呈现控制器的viewDidLoad方法中添加:
// hide navigation bar title in the next controller
let backButton = UIBarButtonItem(title: "", style:.Plain, target: nil, action: nil)
navigationItem.backBarButtonItem = backButton
其他回答
Swift 4.2
let backItem = UIBarButtonItem()
backItem.title = ""
navigationItem.backBarButtonItem = backItem
这适用于Swift 5:
self.navigationItem.backBarButtonItem?.title = ""
请注意，它将对下一个被推送的视图控制器有效，而不是当前显示的视图控制器，这就是为什么它非常令人困惑!
同样，检查故事板并选择前一个视图控制器的导航项，然后在后退按钮(检查器)中键入一些内容。
Swift 4 -在按任何视图控制器之前配置后退按钮
// if you want to remove the text
navigationItem.backBarButtonItem = UIBarButtonItem()
// if you want to modify the text to "back"
navigationItem.backBarButtonItem = UIBarButtonItem(title: "back", style: .plain, target: nil, action: nil)
后退按钮文本和彩色文本:
navigationController?.navigationBar.tintColor = .red
navigationController?.navigationBar.topItem?.backButtonTitle = "Hi"
下面的代码可以添加到视图控制器中，从你想要更改返回按钮文本的视图控制器中
斯威夫特5
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: self, action: nil)
例如:-
ViewController1 ViewController2
假设我们想要更新回viewcontroller2的标题，我们从viewcontroller1推送viewcontroller2。
那么您可以使用以下代码:-
let vc2 = storyboard.instantiateViewController(withIdentifier: "ViewController2")
self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "your custom back button title", style: .plain, target: self, action: nil)
self.navigationController?.pushViewController(vc2, animated: true)
