如何在swift3中更改导航控制器上的后退按钮标题？ [英] How to Change back button title on navigation controller in swift3?

问题描述

我想将backbutton的标题更改为swift 3中的任何名称。我尝试了很多方法，但它们都没有为我工作。

I want to change the title of backbutton to any name in swift 3.I tried many ways but none of them worked for me.

self.navigationItem.backBarButtonItem?.title="Title"
self.navigationController?.navigationItem.backBarButtonItem?.title="Title"

仅供我在appdelegate中编写以下代码的信息。

Just for information i have written below code in appdelegate.

let backImage : UIImage = UIImage(named:"backArrow")!
UINavigationBar.appearance().barTintColor = UIColor(red: 0.0/255.0, green: 0.0/255.0, blue: 0.0/255.0, alpha: 1.0)
UINavigationBar.appearance().tintColor = UIColor.white
UINavigationBar.appearance().backIndicatorImage = backImage
UINavigationBar.appearance().backIndicatorTransitionMaskImage = backImage
UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName : UIColor.white]
UIBarButtonItem.appearance().setBackButtonTitlePositionAdjustment(UIOffsetMake(0, 0), for: .default)
IQKeyboardManager.sharedManager().enable = true
self.window?.backgroundColor = UIColor.white

推荐答案

您必须设置 backBarButtonItem 推送的 navigationController 的 navigationItem 的属性viewController from。

You will have to set the backBarButtonItem property of the navigationItem of the viewController that you push the said viewController from.

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

但是，你必须设置为每个 viewController 。

However, you must set this for each viewController.

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