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
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
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)
这对我很管用。斯威夫特5
navigationItem.backButtonTitle = ""
如果你正在为视图控制器使用xib文件，那么在你的视图控制器类中这样做。
class AboutUsViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
edgesForExtendedLayout = []
setUpNavBar()
}
func setUpNavBar(){
//For title in navigation bar
self.navigationController?.view.backgroundColor = UIColor.white
self.navigationController?.view.tintColor = UIColor.orange
self.navigationItem.title = "About Us"
//For back button in navigation bar
let backButton = UIBarButtonItem()
backButton.title = "Back"
self.navigationController?.navigationBar.topItem?.backBarButtonItem = backButton
}
}
结果将是:
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。
