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更改UINavigationBar后退按钮 Headers

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31

在我的应用程序中，我想使用'Back'文本作为每个viewcontroller的后退按钮 Headers . 我已经在stackoverflow上阅读了这么多帖子但什么也没得到 .

我不想设置leftbarbuttonitem .

任何人都可以帮我完成这个简单的任务 .

谢谢，

ios uinavigationcontroller title back-button

11 回答

  • 1
    self.navigationController.navigationBar.topItem.title = @"";
    回复于
  • 0

    在父视图控制器中执行此操作，而不是在子视图中

    Swift

    navigationItem.backBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: nil, action: nil)

    Objetive-C

    self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:nil action:nil];
    回复于
  • 88

    如果您使用的是故事板，则可以在父视图控制器中选择导航项，并在“ Back Button ”字段中设置所需的按钮文本 . 请记住在 parent 视图控制器中设置此项，而不是在推送的子项中 .

    enter image description here

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  • 8

    试试这个希望它会起作用

    UIBarButtonItem *btn = 
        [[UIBarButtonItem alloc] initWithTitle:@"New Title" 
                                         style:UIBarButtonItemStyleBordered 
                                        target:nil 
                                        action:nil];
[[self navigationItem] setBackBarButtonItem:btn];
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  • 3

    我需要使用 self.navigationController.navigationBar.backItem.title = @""; ，区别在于我使用 backItem 而不是 topItem .

    回复于
  • 5
    navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
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  • 34

    swift 2.0:

    override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    self.navigationController?.navigationBar.topItem?.title = ""
}

    注意：仅当storyboard具有一系列导航堆栈时才有效 .

    其他选项/更改 Headers ：

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

    删除navigationItem：

    navigationItem.setLeftBarButtonItem(nil, animated: true)
    回复于
  • -1

    在 AppDelegate 中 DidFinishLaunchingWithOptions 添加此代码：

    [[UIBarButtonItem appearance] 
setBackButtonTitlePositionAdjustment:UIOffsetMake(-1000.0, 0.0) 
forBarMetrics:UIBarMetricsDefault];
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  • 1

    更改当前可见的后退按钮

    extension UIViewController {
func setCurrentBackButton(title: String) {
    guard let vcCount = self.navigationController?.viewControllers.count else {
        return
    }

    let priorVCPosition = vcCount - 2

    guard priorVCPosition >= 0 else {
        return
    }

    self.navigationController?.viewControllers[priorVCPosition].navigationItem.backBarButtonItem = UIBarButtonItem(title: title, style: .plain, target: self, action: nil)
}
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  • -1

    要删除所有视图控制器的后退按钮 Headers ，请添加新的swift文件并将此消息复制到它

    import UIKit

extension UIViewController {
    static func swizzle(){


        let orginalSelector = #selector(viewDidLoad)
        let swizzledSelector = #selector(swizzledViewDidLoad)

        let orginalMethod = class_getInstanceMethod(UIViewController.self, orginalSelector)
        let swizzledMethod = class_getInstanceMethod(UIViewController.self, #selector(swizzledViewDidLoad))

        let didAddMethod = class_addMethod(UIViewController.self, orginalSelector, method_getImplementation(swizzledMethod!), method_getTypeEncoding(swizzledMethod!))

        if didAddMethod {
            class_replaceMethod(UIViewController.self, swizzledSelector, method_getImplementation(orginalMethod!), method_getTypeEncoding(orginalMethod!))
        }else{
            method_exchangeImplementations(orginalMethod!, swizzledMethod!)
        }

    }

    @objc func swizzledViewDidLoad(){
        navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
        swizzledViewDidLoad()
    }


}

    在AppDelegate里面的didFinishLaunchingWithOptions之后，调用swizzle func .

    UIViewController.swizzle()

    这个func使用目标c运行时将 viewDidLoad 方法与另一个删除后退按钮 Headers 的方法交换，然后在里面调用原来的 viewDidLoad

    回复于
  • 0

    带后箭头的后退按钮

    Objective-C

    self.navigationController.navigationBar.topItem.backBarButtonItem = 
[[UIBarButtonItem alloc] initWithTitle:@"Title" style:UIBarButtonItemStylePlain
target:nil action:nil];

    斯威夫特

    self.navigationController?.navigationItem.backBarButtonItem = 
UIBarButtonItem(title:"Title", style:.plain, target:nil, action:nil)

    没有后箭头的普通按钮

    Objective-C

    self.navigationItem.leftBarButtonItem = 
[[UIBarButtonItem alloc] initWithTitle:@"Title" 
style:UIBarButtonItemStylePlain target:nil action:nil];

    斯威夫特

    self.navigationItem.leftBarButtonItem = UIBarButtonItem(title:"Title", 
style:.plain, target:nil, action:nil)

    没有后箭头的粗体按钮

    Objective-C

    self.navigationItem.leftBarButtonItem = 
[[UIBarButtonItem alloc] initWithTitle:@"Title" 
style:UIBarButtonItemStyleDone target:nil action:nil];

    斯威夫特

    self.navigationItem.leftBarButtonItem = UIBarButtonItem(title:"Title", 
style:.done, target:nil, action:nil)
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