导航栏中的UISearchController无法在iOS 11上正确隐藏

Question

我想点按

后隐藏导航栏

navigationController?.hidesBarsOnTap = true

点击后，navigationBar会正常隐藏

但是在添加了searchController（下面的代码）之后

let searchController = UISearchController(searchResultsController: nil)
navigationItem.searchController = searchController

我的视图（青色）无法正确延伸

我也试过旋转它。出现搜索栏。

Answer 1

终于找到了解决方案

MacBook-Pro-2:~ admin$ which python2
/usr/local/bin/python2
MacBook-Pro-2:~ admin$ 
MacBook-Pro-2:~ admin$ which python3
/usr/local/bin/python3
MacBook-Pro-2:~ admin$ 

example code