防止 UISearchDisplayController 隐藏导航栏

Prevent a UISearchDisplayController from hiding the navigation bar(防止 UISearchDisplayController 隐藏导航栏)

问题描述

每当用户开始编辑 UISearchDisplayController 的搜索栏时，搜索控制器就会激活并隐藏视图的导航栏，同时呈现搜索表视图.是否可以防止 UISearchDisplayController 隐藏导航栏而不重新实现它?

Whenever a user begins editing a UISearchDisplayController's search bar, the search controller becomes active and hides the view's navigation bar while presenting the search table view. Is it possible to prevent a UISearchDisplayController from hiding the navigation bar without reimplementing it?

推荐答案

iOS 8 引入的新 UISearchController 类有一个属性 hidesNavigationBarDuringPresentation 可以设置为 false，如果你想让导航栏保持可见(默认情况下它仍然是隐藏的).

The new UISearchController class introduced with iOS 8 has a property hidesNavigationBarDuringPresentation which you can set to false if you want to keep the navigation bar visible (by default it will still be hidden).

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