Ios 搜索栏在点击时隐藏

嗨，我在UIView上添加了搜索栏。当我运行我的代码时，我可以看到我的搜索栏，但当我点击搜索栏内部时，它隐藏了自己，当我再次点击屏幕上的某个地方时，它是可见的。我现在没有遇到这个问题。请帮助

 var searchView:UIView = {
        var search = UIView()
        search.translatesAutoresizingMaskIntoConstraints = false
        search.backgroundColor = UIColor.gray
        return search
    }()

   lazy var searchController : UISearchController = {
        var searchController = UISearchController(searchResultsController: nil)
        //searchController.searchResultsUpdater = self
        searchController.hidesNavigationBarDuringPresentation = false
        searchController.searchBar.barTintColor = UIColor.gray
        searchController.searchBar.layer.borderWidth = 1
        searchController.searchBar.layer.borderColor = UIColor.gray.cgColor
        //searchController.dimsBackgroundDuringPresentation = false
        searchController.definesPresentationContext = true
        searchController.searchBar.sizeToFit()
        searchController.searchBar.translatesAutoresizingMaskIntoConstraints = false
        return searchController
    }()
func setUpView(){
    view.addSubview(searchView)
    searchView.addSubview(searchController.searchBar)

    searchView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
    searchView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
    searchView.topAnchor.constraint(equalTo: view.topAnchor,constant:64).isActive = true
    searchView.heightAnchor.constraint(equalToConstant: 65).isActive = true

    searchController.searchBar.leftAnchor.constraint(equalTo: searchView.leftAnchor).isActive = true
    searchController.searchBar.rightAnchor.constraint(equalTo: searchView.rightAnchor).isActive = true
    searchController.searchBar.topAnchor.constraint(equalTo: searchView.topAnchor,constant:10).isActive = true
    searchController.searchBar.widthAnchor.constraint(equalTo: searchView.widthAnchor).isActive = true
    }

我还在ViewDidLoad（）-：

self.extendedLayoutIncludesOpaqueBars = true

---

我发现当UISearchController的搜索栏设置为translatesAutoResizengMaskintoConstraints=false时，它的工作不正常。作为一种解决方法，我将搜索栏嵌入到具有所需约束的占位符视图中：

let searchBarPlaceholderView = UIView()
searchBarPlaceholderView.addSubview(searchController.searchBar)
searchBarPlaceholderView.translatesAutoresizingMaskIntoConstraints = false
searchBarPlaceholderView.heightAnchor.constraint(equalToConstant: 56).isActive = true
stackView.addArrangedSubview(searchBarPlaceholderView)

---

请注意，searchController.searchBar的translatesAutoresizingMaskIntoConstraints属性保留为true。

我不理解这个问题，所以您希望它在点击外部时可见，还是不希望它可见？您的评论：“我现在不明白这个问题。”这让我更加困惑。@brw59我的观点是，当我点击UISearchBar字段内部时，UISearchBar会隐藏自己，我看不到它，但当我再次点击控制器屏幕上的某个位置时，它会再次显示。所以我不想让它隐藏。