双击需要选择带有搜索栏的TableView项 [英] Double tap necessary to select TableView item with Search Bar

问题描述

我有一个带有搜索栏作为标题的UITableView.当用户在搜索栏中进行搜索时，我使用此功能来更新我的数据.

I have a UITableView with a search bar as header. I use this function to update my data when the user does a search in the search bar.

func updateSearchResults(for searchController: UISearchController) {

    if let searchText = searchController.searchBar.text {
        if (searchText.characters.count > 0) {
            self.filteredResults  = [];
            self.locationManager?.geocodeAddressString(addressString: searchText, completionHandler: { (results, error) in
                if error == nil && results != nil {
                    self.filteredResults = results!;
                    self.tableView.reloadData();
                }
            });
        }
        else {
            self.filteredResults  = [];
            self.tableView.reloadData();
        }
    }
}

以及当我在UITableView中选择一个单元格时的此功能.

and this function when I select a cell in my UITableView.

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

    self.delegate?.setCity(city: str);
    self.dismiss(animated: true, completion: nil);
}

这是我的问题:在单元的第一次轻按时，视图控制器不会关闭.我轻按一次，搜索栏将响应者辞职.而且我需要轻按两次以执行解雇.

Here is my problem : the view controller doesn't dismiss at the first taps on the cell. I taps once, the search bar resign responder. And I need to tap twice for the dismiss to execute.

这是在viewDidLoad中链接表视图和搜索栏的方式:

Here is how I link my tableview and my search bar in viewDidLoad:

// Search Bar componants
self.searchController = UISearchController(searchResultsController: nil);
self.searchController.delegate = self;
self.searchController.searchResultsUpdater = self;
self.searchController.hidesNavigationBarDuringPresentation = false
self.searchController.dimsBackgroundDuringPresentation = false;

self.searchBar = self.searchController.searchBar;
self.searchBar.searchBarStyle = .default;
self.searchBar.delegate = self;
self.searchBar.placeholder = NSLocalizedString("search.city", comment: "search.city").capitalized;

self.tableView = UITableView(frame: CGRect.zero, style: .plain);
self.tableView.translatesAutoresizingMaskIntoConstraints = false;
self.tableView.delegate = self;
self.tableView.backgroundColor = UIColor.white;
self.tableView.dataSource = self;
self.tableView.tableHeaderView = self.searchBar;
self.view.addSubview(self.tableView);

如果有人可以帮助我，那就太好了:)

If someone could help me, that would be great :)

推荐答案

您可以向视图中添加点击手势识别器，以使其在发射时会

You can add a tap gesture recognizer to your view that when fired would

1. 辞去搜索栏响应者
2. 将点击位置转换为表格视图中的一个点
3. 获取点击位置的单元格
4. 手动调用 didSelectRowAt ，它不是最佳"解决方案，但用于演示目的.

1. resign the search bar responder
2. convert the tap location to a point in you table view
3. get the cell that tap location
4. manually call didSelectRowAt which isn't the "best" solution but for demonstration purposes.

以下是其实现方式:

override func viewDidLoad() {
        super.viewDidLoad()

        // Add a tap gesture to our view
        let gesture = UITapGestureRecognizer(target: self, action: #selector(TestTableViewController.didTap(_:)))
        self.view.addGestureRecognizer(gesture)
    }

    // Called when the tap gesture fires
    func didTap(gesture: UITapGestureRecognizer) {

        // We get rid of our keyboard on screen
        searchBar.resignFirstResponder()

        // Find the location of the touch relative to the tableView
        let touch = gesture.locationInView(self.tableView)

        // Convert that touch point to an index path
        if let indexPath = tableView.indexPathForRowAtPoint(touch) {

            // Here I am just calling the delegate method directly which you shouldn't do.
            // You should just do whatever you want to do with the indexPath here.
            tableView(tableView, didSelectRowAtIndexPath: indexPath)
        }
    }

这篇关于双击需要选择带有搜索栏的TableView项的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！