Question

我在UIViewController中嵌入了UINavigationController，其中UICollectionView填满了屏幕。在UINavigationBar我有一个按钮，在选中时会在UISearchBar下显示UINavigationBar。我这一切都很好。问题是，在UISearchBar上选择取消按钮时，我无法让搜索栏解除。这是我的代码：

var searchController = UISearchController()

override func viewDidLoad() {
    super.viewDidLoad()

    searchController = UISearchController(searchResultsController: nil)
    searchController.searchResultsUpdater = self
    searchController.delegate = self
    searchController.searchBar.delegate = self
    searchController.hidesNavigationBarDuringPresentation = false
    searchController.dimsBackgroundDuringPresentation = false
    searchController.searchBar.placeholder = "Search for Title"

    self.navigationItem.searchController = searchController
}

@IBAction func searchSelected(_ sender: UIBarButtonItem) {
    searchController.isActive = true
}

func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
    print("cancel clicked")
    searchController.isActive = false
}

Answer 1

使用：

navigationItem.searchController = nil

如何从UINavigationItem中解除UISearchController？

1 个答案: