Why an extension is blocking a touch event in tableViewCells? - ios

Question

My UITableView used to work and sudendly it stopped to act as it was intended. I've found the segues are still doable but not just touching the cell, you need to hold the button and slide and then it does the segue. The delegates methods aren't called when a single touch is done. After being researching for a while, I think the best idea is to post my issue here, because looking in stackoverflow, seems that nobody have a similar issue.
I can click on the shop and the shop gets selected, but I have to maintain the button pressed, not a lot of time, a few miliseconds, almost instantly. The row turns gray but nothing happen. If I release the button then nothing happens too. if I slide then it does the segue. There is nowhere in my code or even in my whole project were I have added a single gesture. I've found an extension in my code that actually adds a gesture to my father viewController custom class. Find it in below
This is my table view code:
//
// showShopsTableView.swift
// yuApp
//
// Created by Alfredo on 16/5/16.
// Copyright © 2016 Alfredo. All rights reserved.
//
import UIKit
import CoreLocation
import MapKit
class showShopsTableView : ViewController, UITableViewDelegate, UITableViewDataSource,UISearchBarDelegate, UISearchResultsUpdating {
var selectedRow : shopsTableViewCell!
var index : Int = 0
#IBOutlet var searchBar: UISearchBar!
#IBOutlet weak var currentTableView: UITableView!
let resultSearchController = UISearchController(searchResultsController:nil)
var searchActive : Bool = false
var filtered:[String] = []
override func viewDidLoad(){
self.currentTableView?.delegate = self;
self.currentTableView?.dataSource = self;
super.viewDidLoad()
//Retrieve data asynchronously
let call = webApi()
call.retrieveOneCityShops{(success) in
self.doTableRefresh()
}
viewDidLayoutSubviews()
}
override func viewDidLayoutSubviews() {
/*
if let rect = self.navigationController?.navigationBar.frame {
let y = rect.size.height + rect.origin.y
self.currentTableView.contentInset = UIEdgeInsetsMake( y, 0, 0, 0)
}*/
}
//Segue Method
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let destinationViewController = segue.destinationViewController as! detailViewShop
sendVariablesToDetailView(destinationViewController)
}
//Set variables in the next view controller before do a segue
func sendVariablesToDetailView(destinationViewController : detailViewShop){
destinationViewController.dataSend = self.selectedRow
destinationViewController.titleText = self.selectedRow.shopName.text
destinationViewController.descriptionText = self.selectedRow.shopDescription.text
destinationViewController.imageOutlet = self.selectedRow.shopImg
destinationViewController.shopCategory = self.selectedRow.label1.text
destinationViewController.brands = self.selectedRow.label2.text
}
//TableView Delegate Methods
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
selectedRow = tableView.cellForRowAtIndexPath(indexPath)! as! shopsTableViewCell
self.performSegueWithIdentifier("cell", sender: self)
}
func tableView(tableView:UITableView, numberOfRowsInSection section:Int) -> Int
{
/*
if(searchActive) {
return filtered.count
}
*/
return TableData.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell : shopsTableViewCell = tableView.dequeueReusableCellWithIdentifier("shopCell", forIndexPath: indexPath) as! shopsTableViewCell
cell.shopName.text = TableData[indexPath.row]
cell.shopDescription.text = values[indexPath.row].address
cell.label1.text = values[indexPath.row].city
cell.label2.text = values[indexPath.row].distance + "Km"
cell.shopImg = UIImageView.init(image: UIImage.init(named: "versace_shop.jpg"))
return cell
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return 125
}
//SearchBar Delegate Methods
func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
searchActive = true;
}
func searchBarTextDidEndEditing(searchBar: UISearchBar) {
searchActive = false;
}
func searchBarCancelButtonClicked(searchBar: UISearchBar) {
searchActive = false;
}
func searchBarSearchButtonClicked(searchBar: UISearchBar) {
searchActive = false;
}
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) {
filtered = TableData.filter({ (text) -> Bool in
let tmp: NSString = text
let range = tmp.rangeOfString(searchText, options: NSStringCompareOptions.CaseInsensitiveSearch)
return range.location != NSNotFound
})
if(filtered.count == 0){
searchActive = false;
} else {
searchActive = true;
}
self.currentTableView.reloadData()
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
}
func searchBar(searchBar: UISearchBar, selectedScopeButtonIndexDidChange selectedScope: Int) {
filterContentForSearchText(searchBar.text!, scope: searchBar.scopeButtonTitles![selectedScope])
}
func filterContentForSearchText(searchText: String, scope: String = "All") {
currentTableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func doTableRefresh(){
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.currentTableView.reloadData()
return
})
}
}
EDIT: to remove all images that were showing the property userInteractionEnabled to TRUE. I've finally found the source of the issue. It has nothing to do with storyBoard. Is an extension I wrote for my main custom class, viewController (and so parent of this window too). The extension is that one:
import Foundation
import UIKit
// Put this piece of code anywhere you like
extension ViewController {
func hideKeyboardWhenTappedAround() {
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(ViewController.dismissKeyboard))
view.addGestureRecognizer(tap)
}
func dismissKeyboard() {
view.endEditing(true)
}
}
It was called at the very beginning of my custom viewController class, right after super.viewDidLoad():
override func viewDidLoad() {
super.viewDidLoad()
// Hide keyboard when tap away
self.hideKeyboardWhenTappedAround()
I've commented super.viewDidLoad() in my showShopsTableView class and now is working just fine.
I'm not really sure to understand why this piece of code is blocking the touch event of my tableView, so if somebody wants to explain it, I will accept his answer. Also some points to my question would be very appreciated if you found it usefull.
In any case, thanks a lot to all that spend a minute here.