swift 2 search bar will be not hidden after unwind segue

Question

in my swift 2 app i have a table view controller with a search bar. i setup the search bar in my viewDidLoad. and in the viewWillAppear i set the offset of my tableView, because i would like to hide the search bar on start. this works finde.

but if I switch to another view controller and go back to the TableViewController with an exit unwind segue, the search bar will be directly visible.

if I go back to my TableViewController from another view controller with an normal modal segue (not unwind), the search bar will be hidden, because the tableview.setContentOffset will be active.

any ideas what i do wrong?

class TableViewController: UITableViewController, ADBannerViewDelegate, UISearchBarDelegate, UISearchResultsUpdating {

    let managedObjectContext = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
    var items = [CoreData_ITEMS]()


    func updateSearchResultsForSearchController(searchController: UISearchController) {}

    func DatenAbrufen() {

            let fetchRequest = NSFetchRequest(entityName: "ITEMS")      
            do {
                try self.items = self.managedObjectContext!.executeFetchRequest(fetchRequest) as! [CoreData_ITEMS]
            } catch { }

            self.tableView.reloadData()
        }




/*************** VIEW DID LOAD ***************/
    override func viewDidLoad() {
        super.viewDidLoad()

        let searchController = UISearchController(searchResultsController: nil)
        searchController.searchBar.delegate = self
        searchController.searchResultsUpdater = self
        searchController.hidesNavigationBarDuringPresentation = false
        searchController.dimsBackgroundDuringPresentation = false
        tableView.tableHeaderView = searchController.searchBar
    }






    override func viewWillAppear(animated: Bool) {
        DatenAbrufen()
        tableView.contentOffset = CGPointMake(0,44) 
    }



    /*************** ANZAHL DER ZELLEN ERMITTELN ***************/
    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return items.count
    }


    /*************** ZELLEN MIT INHALT FÜLLEN ***************/
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        let cell = self.tableView.dequeueReusableCellWithIdentifier("Cell") as! ModifyCells


        var ITEM:CoreData_ITEMS
        ITEM = items[indexPath.row]

        cell.Name.text = ITEM.name
        return cell
    }



    /*************** EXIT FUNKTIONEN ***************/
    @IBAction func exit_to_TViewController(segue: UIStoryboardSegue) {}


}

Answer 1

I had a similar problem. The thing is that tableView.contentOffset does not get set unless the tableview is displayed on the screen. I don't know why it has this behaviour. So what fixed it for me was moving the tableView.contentOffset call to vieDidAppear but then the scrolling is a bit visible. This wasn't a problem for me. If you don't want that you could try moving the call to viewDidLayoutSubviews .