swift - 为什么我的 UISearchBar 没有更新结果？

Question

我的 UISearchBar 的实现有问题。它没有更新我的 tableView 中的结果，我不知道为什么它不起作用。 Here是我类(class)的完整源代码。

---

var searchBar = UISearchBar()

    func updateSearchResults(for searchController: UISearchBar) {
        searchBarText = searchController.text?.lowercased()
        searchBarScope = searchController.selectedScopeButtonIndex
        showList()
    }

    func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
        self.searchBar.showsScopeBar = true
        if (navigationItem.title != nil) {
            self.searchBar.scopeButtonTitles = [String(format: "gesamte %@", ci("project_s")),  String(format: "in %@", navigationItem.title!)]
        }
    }

    func searchBar(_ searchBar: UISearchBar, selectedScopeButtonIndexDidChange selectedScope: Int) {
        updateSearchResults(for: searchBar)
    }

    override func viewDidLayoutSubviews() {
        self.searchBar.sizeToFit()
    }

    public override func viewDidLoad() {

        self.navigationController?.setNavigationBarHidden(false, animated: false)
        navigationItem.title = navigationItem.title ?? ci("plan_p")

        guard let projectId = GlobalState.selectedProjectId, let byProject : Results<Structure> = self.by(projectId: projectId) else {
            return
        }

        //search bar
        tableView.rowHeight = 100.0
        tableView.tableHeaderView = searchBar


        self.searchBar.showsCancelButton = true
        self.searchBar.sizeToFit()
        self.definesPresentationContext = true
        self.searchBar.delegate = self

        tableView.allowsMultipleSelectionDuringEditing = true

我错过了什么？感谢你们的任何意见!

Answer 1

在 viewDidLoad 中设置 tableView 委托(delegate)和数据源，如下所示:

tableView.delegate = self;
table.dataSource = self;

我认为你上面遗漏了。