UITableView-sectionIndexColor为选定的索引。-UITableView-sectionIndexColorfortheselectedindex

0  

I took a look through the documentation for UITableView and it does not appear as though there are any public APIs available to help achieve what you're trying to do. Furthermore, UITableView doesn't even expose a sectionIndex property so there's really no great way of even looping through its subviews (which would likely get you rejected from the app store anyway). I think your only option is to build a custom sectionIndex (by subclassing UIView) if you need to modify yours further than the text color or background color.

我查看了UITableView的文档，并没有出现任何可用的公共api来帮助实现您想要做的事情。此外，UITableView甚至没有公开一个sectionIndex属性，因此甚至没有很好的方法来通过它的子视图来循环(这可能会让你从应用程序商店中被拒绝)。我认为您唯一的选择是构建一个自定义的sectionIndex(通过子类化UIView)，如果您需要修改您的文本颜色或背景颜色。

Here's one example (though I haven't tried it myself): https://github.com/gdavis/GDIIndexBar

这里有一个例子(尽管我自己没有尝试过):https://github.com/gdavis/GDIIndexBar。