BackBarButton将无法显示正确的标题 [英] BackBarButton won't display correct title

问题描述

我正在尝试将backButton设置为简单的<"像这样:

I am trying to set my backButton to a simple "<" like this:

self.navigationItem.backBarButtonItem = UIBarButtonItem(title:"", style:.Plain, target:nil, action:nil)
print(self.navigationItem.backBarButtonItem?.title)

打印将显示"，但是在模拟器上运行我的应用程序将始终显示先前VC的标题.

The printing will display "", but running my app on the simulator will always display the title of the previous VC.

尽管我测试了

 navigationController?.navigationBar.tintColor = UIColor(red:0.60, green:0.60, blue:0.60, alpha:1.0)

将更改按钮的颜色.

注意:

我正在从嵌入在UINavigationController中的UIViewController推动 只是一个UIViewController

I am pushing from a UIViewController embedded in a UINavigationController to just a UIViewController

推荐答案

您需要在整个应用中隐藏backbarbutton标题，对吗?

You need to hide the backbarbutton title through out your app,right?

• 然后，这个技巧可能会帮助您实现目标.

• Then this trick may help you in achieving that.

快捷键:

UIBarButtonItem.appearance().setTitlePositionAdjustment(UIOffsetMake(0, -100), forBarMetrics: UIBarMetrics.Default)

目标C:

[[UIBarButtonItem appearance] setBackButtonTitlePositionAdjustment:UIOffsetMake(0, -100)
                                                 forBarMetrics:UIBarMetricsDefault];

在您的appdelegate didFinishLaunchingWithOptions中添加以上代码，我们将标题从框架中隐藏(隐藏):p.

Add the above code in your appdelegate didFinishLaunchingWithOptions,we are pushing the title out of the frame(hidden) :p.

结果:

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