在UisearchController处于活动状态时，在TableView中选择单元格，则不会显示下一个视图

Question

我已经制作了一个tableView，您可以在其中选择一个单元格，然后ViewController将执行一个segue到下一个视图，当您不使用searchController时，该视图非常好。然后，当您使用searchController时，它会按照应有的方式过滤tableview，并且在didSelectRowatIndExpath中调用了segue，并调用了preparforsegue。问题是，它应该不应该提出的观点？我可以看到，连接到视图的类中的代码正在运行，因此执行了SEGUE，这只是未遵循的视图。我缺少什么

class CompanyListViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, UISearchResultsUpdating {
@IBOutlet weak var tableView: UITableView!
let objectMapper = AWSDynamoDBObjectMapper.defaultDynamoDBObjectMapper()
var activityIndicatorView: SWActivityIndicatorView!
var resultSearchController: UISearchController!
var allCompanies: [Company] = []
var filteredCompanies = [Company]()
override func viewDidLoad() {
    super.viewDidLoad()

    // set delegates
    tableView.delegate = self
    tableView.dataSource = self
    configureSearchController()

    // initialize activity indicator view
    self.activityIndicatorView = SWActivityIndicatorView(frame: CGRect(x: 0, y: 0, width: 30, height: 30))
    activityIndicatorView.hidesWhenStopped = true
    activityIndicatorView.color = UIColor.lightGrayColor()
    self.view.addSubview(activityIndicatorView)
    self.activityIndicatorView.center = self.view.center
    activityIndicatorView.startAnimating()
    // fetch all records from backend
    fetchAllRecords({(errors: [NSError]?) -> Void in if errors != nil {print(errors)}})
}
func configureSearchController() {
    // Initialize and perform a minimum configuration to the search controller.
    // Search Bar
    self.resultSearchController = UISearchController(searchResultsController: nil)
    self.resultSearchController?.searchBar.autocapitalizationType = .None
    self.tableView.tableHeaderView = self.resultSearchController?.searchBar
    resultSearchController?.dimsBackgroundDuringPresentation = false
    self.resultSearchController?.searchResultsUpdater = self
    definesPresentationContext = true
}


// search delegate method
func updateSearchResultsForSearchController(searchController: UISearchController) {
        self.filterContentForSearchText(searchController.searchBar.text!)
}

// Filter method, which filters by companyName, and reloads tableview
func filterContentForSearchText(searchText: String, scope: String = "All") {
    filteredCompanies = allCompanies.filter { company in
        return company._companyName!.lowercaseString.containsString(searchText.lowercaseString)
    }
    tableView.reloadData()
}
// fetch all records from backend
func fetchAllRecords(completionHandler: (errors: [NSError]?) -> Void) {
    let scanExpression = AWSDynamoDBScanExpression()
    objectMapper.scan(Company.self, expression: scanExpression) { (response: AWSDynamoDBPaginatedOutput?, error: NSError?) in
        dispatch_async(dispatch_get_main_queue(), {
            // if error
            if let error = error {
                completionHandler(errors: [error]);
            }
                //if success
            else {
                self.allCompanies = response!.items as! [Company]
                self.tableView.reloadData()
                self.activityIndicatorView.stopAnimating()
            }
        })
    }
}

func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    if resultSearchController.active && resultSearchController.searchBar.text != "" {
        return filteredCompanies.count
    }
    return allCompanies.count
}

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    // create a new cell if needed or reuse an old one
    let cell:CompanyListTableViewCell = self.tableView.dequeueReusableCellWithIdentifier("companyCell") as! CompanyListTableViewCell
    // set the text from the data model
    let company:Company?
    if resultSearchController.active && resultSearchController.searchBar.text != "" {
        company = self.filteredCompanies[indexPath.row]

    } else {
        company = self.allCompanies[indexPath.row]
    }
    cell.titleLabel.text = company!._companyName
    cell.imageview?.image = UIImage(named: "placeholder")
    return cell
}

func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.performSegueWithIdentifier("segueToProfile", sender: self)
}

// send selected company with segue to profile
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if(segue.identifier == "segueToProfile"){
        let indexPath = tableView.indexPathForSelectedRow
        //tableView.deselectRowAtIndexPath(indexPath!, animated: true)
        let selectedRow = indexPath!.row
        let profileVC = segue.destinationViewController as! ProfileViewController
        if resultSearchController.active{
            print(filteredCompanies[selectedRow])
            profileVC.company = filteredCompanies[selectedRow]
        } else {
            profileVC.company = allCompanies[selectedRow]
        }
    }
}

}

控制台在这么说，但是我不知道那是否与此有关吗？

2016-11-26 15：54：07.300 Lostandfound [949：2474251]警告：尝试出现已经在展示

Answer 1

以下是带有搜索栏控件的tableView的示例。

示例：

import UIKit
class ViewController: UIViewController,UITableViewDelegate,UITableViewDataSource,UISearchBarDelegate
{
@IBOutlet weak var SerchBar: UISearchBar!
@IBOutlet weak var TableView: UITableView!

var searchActive : Bool = false
var data = ["San Francisco","New York","San Jose","Chicago","Los Angeles","Austin","Seattle"]
var filtered:[String] = []
override func viewDidLoad()
{
    super.viewDidLoad()
}
private func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
    return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    if(searchActive)
    {
        return filtered.count
    }
    return data.count;
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
    let cell = self.TableView.dequeueReusableCell(withIdentifier: "Cell") as! TableViewCell
    if(searchActive)
    {
        cell.Label.text = filtered[indexPath.row]
    }
    else
    {
        cell.Label.text = data[indexPath.row]
    }
    return cell
}
override func prepare(for segue: UIStoryboardSegue, sender: Any!)
{
    if let cell = sender as? TableViewCell
    {
        let i = TableView.indexPath(for: cell)!.row
        if segue.identifier == "segue1"
        {
            if(searchActive)
            {
                let name1 = segue.destination as! SecondView
                name1.str = self.filtered[i]
            }
            else
            {
                let name1 = segue.destination as! SecondView
                name1.str = self.data[i]
            }
        }
    }
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String)
{
    filtered = data.filter({ (text) -> Bool in
        let tmp: NSString = text as NSString
        let range = tmp.range(of: searchText, options: .caseInsensitive)
        return range.location != NSNotFound
    })
    if(filtered.count == 0)
    {
        searchActive = false;
    }
    else
    {
        searchActive = true;
    }
    self.TableView.reloadData()
}
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar)
{
    searchActive = true;
}
func searchBarTextDidEndEditing(_ searchBar: UISearchBar)
{
    searchActive = false;
}
func searchBarCancelButtonClicked(_ searchBar: UISearchBar)
{
    searchActive = false;
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar)
{
    searchActive = false;
}
override func didReceiveMemoryWarning()
{
    super.didReceiveMemoryWarning()
}
}

您的第二视图类是：

import UIKit
class SecondView: UIViewController
{
@IBOutlet weak var label: UILabel!
var str:String!
override func viewDidLoad()
{
    super.viewDidLoad()
    self.label.text = str
}
override func didReceiveMemoryWarning()
{
    super.didReceiveMemoryWarning()
}
}

和您的tableviewcell是：

import UIKit
class TableViewCell: UITableViewCell
{
@IBOutlet weak var Label: UILabel!
override func awakeFromNib()
{
    super.awakeFromNib()
}
override func setSelected(_ selected: Bool, animated: Bool)
{
    super.setSelected(selected, animated: animated)
}
}