使用后退按钮样式创建 UIBarButtonItem [英] Create UIBarButtonItem with back button style

问题描述

我正在寻找一种以编程方式创建 UIBarButtonItem 的方法，它看起来像 UINavigationBar 的后退按钮.显然，后退按钮只有在按下 UINavigationController 后才会出现.

I'm looking for a way to create programmatically an UIBarButtonItem that looks like a back button of UINavigationBar. Apparently seems like that the back button appears only after a push on the UINavigationController.

所以我只能插入一个取消"样式的按钮.但我的目标是创建一个具有New Item"样式的按钮.

So I'm able to insert only a button with the "cancel" style. But my goal is to create a button with the "New Item" style.

想法?

推荐答案

简单的回答是你做不到.

the short answer is you cannot do it.

你可以保存一张图片，你可以把图片放到那个位置，但是后退按钮是由UINavigationBar的私有部分管理的.

you can save an image and you can put the image to that position, but the back button is managed by private part of the UINavigationBar.

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