swift - MapKit 本地搜索结果填充表格

Question

我正在尝试加载更新的搜索结果，但它没有填充表格视图。我使用了这个链接https://www.thorntech.com/how-to-search-for-location-using-apples-mapkit/它属于以前的版本，但除了显示本地搜索结果外，它仍然很好用。请帮忙

class LocationSearchTable : UITableViewController, UISearchResultsUpdating {
    var matchingItems:[MKMapItem] = []
    var mapView: MKMapView? = nil
    
}

extension LocationSearchTable {
func updateSearchResults(for searchController: UISearchController) {
    guard let MapView = mapView,
        let searchBarText = searchController.searchBar.text else { return }
    let request = MKLocalSearch.Request()
    request.naturalLanguageQuery = searchBarText
    request.region = MapView.region
    let search = MKLocalSearch(request: request)
    search.start { response, _ in
        guard let response = response else {
            print("No response")
            return
        }
        self.matchingItems = response.mapItems
        self.tableView.reloadData()
    }
    }
}
extension LocationSearchTable {
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return matchingItems.count
    }

    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCell(withIdentifier: "cell")!
        let selectedItem = matchingItems[indexPath.row].placemark
        cell.textLabel?.text = selectedItem.name
        cell.detailTextLabel?.text = ""
        return cell
    }
}