didSelectRowAt Swift 3 Not Called even after delegate and dataSource are set

Question

This question seems to have been asked many times on StackOverflow, but after searching for hours, I still haven't found the solution to my issue.

I have a table view in SecondViewController.swift and I did make it delegate and dataSource SecondViewController.swift, but the didSelectRowAt method is still not fired when a table cell is clicked. I am trying to apply a segue to another view controller, but the didSelectRowAt method isn't working itself.

I have selected Single Selection in my storyboard in the table view properties, and I have made sure that user interaction is enabled for the table view and the prototype cell.

For the SecondViewController.swift below, please assume that allEvents are populated into the allEvents array. I was able to successfully populate them and display them in the table. The only problem is clicking on the row to perform a segue. Also, please ignore the awkward indentation below.

SecondViewController.swift

import UIKit

class SecondViewController: UIViewController, UITableViewDataSource,    UITableViewDelegate {

  @IBOutlet var tableView: UITableView!

  var allEvents: Array<JSON> = []

  override func viewDidLoad() {

    super.viewDidLoad()

    tableView.delegate = self
    tableView.dataSource = self

    //self.tabBarItem.image = myTabImage
    self.tabBarController?.tabBar.isTranslucent = false
    self.tabBarController?.tabBar.barTintColor = UIColor(red:0.25, green:0.25, blue:0.25, alpha:1.0)
    self.tabBarController?.tabBar.tintColor = UIColor.white

    //ASSUME ALL EVENTS ARE POPULATED INTO allEvents

  }

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


// MARK: Tableview Datasource
func numberOfSections(in tableView: UITableView) -> Int {
    return 1
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

    return allEvents.count
}

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {

    return 150
}

func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    print("SEGUE")
    self.performSegue(withIdentifier: "oneSegue", sender: allEvents[indexPath.row])
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "eventViewTableCell", for: indexPath) as! EventViewTableCell        

    return cell
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
   // let detailController = segue.destination as! EventDetailsController


}
}

I have been on this for hours and still have not found out the problem. I would greatly appreciate any help!

I really don't see anything in your code that would indicate that type of issue. Check the frame of your tableView - make sure you don't have any other transparent views stacked on top that would prevent touch events from being handled on the tableView. — Pierce, Jan 28 '17 at 18:01
Don't forget to set your table view as dataSource and delegate in the Interface Builder like here: http://stackoverflow.com/a/41350632/5327882 — ronatory, Jan 28 '17 at 18:03
In my storyboard, there is tableView with the prototype cell inside it, and a contentView inside the prototype cell. The contentView comes with the prototype cell by default. Also, the dataSource and delegate are already set in the Interface Builder. — Sriharsha Guduguntla, Jan 28 '17 at 18:04
Have you tried the solution found here? https://stackoverflow.com/questions/44906854/how-can-i-make-my-cells-selectable-when-there-is-an-uiview-below-the-uicollectio — Elhoej, Jul 11 '17 at 03:22

score 11 · Answer 1 · answered Jan 28 '17 at 18:02

11

You may want to check your tableview again, do choose single selection.

I'm assuming you are selecting No Selection as the picture bellow

Hope it helps.

answered Jan 28 '17 at 18:02

Xuan-Gieng Nguyen

816
6
9

Yes, I have selected Single Selection as I mentioned in the original post, but it still doesn't work. – Sriharsha Guduguntla Jan 28 '17 at 18:08
How about enabling user interaction for the view? – Xuan-Gieng Nguyen Jan 28 '17 at 18:35
Yes, I've done that also, as mentioned in my original post, but still doesn't work... – Sriharsha Guduguntla Jan 28 '17 at 18:37
This one was it for me. Thanks – andrewcar Aug 03 '17 at 05:02

score 1 · Answer 2 · answered Jul 11 '17 at 02:40

I had the same problem on a Controller within a TabBarController.

What fixed it for me was this:

Disable the User Interaction for the Content view

My guess is that it was becoming the responder so it removed the event from the TableView

Note: Since the viewDidLoad assignments to delegate and dataSource became redundant after setting it up in the StoryBoard, I removed them, although leaving them does no harm.

score 0 · Answer 3 · answered Jan 28 '17 at 18:00

If you do nothing else than calling the segue in didSelectRowAt remove the entire method and connect the segue in Interface Builder to the table view cell (rather than to the controller). The sender parameter will contain the reference to the selected table view cell.

score 0 · Answer 4 · answered Jan 28 '17 at 19:49

I suspect when you collected and populated your allEvents array did you collect any touch events in there ? or have you used UIGestureRecognizer in this or it's super view ? If you have intercepted any touch event to populate your array or any other purpose comment it out and test it with a simple preloaded array like :

let dataSource = ["1", "2", "3", "4"]

let me know if this is not your case so I can find another solution.

didSelectRowAt Swift 3 Not Called even after delegate and dataSource are set

4 Answers4