TableView cell select event not triggering

Question

I have created a component in XIB file. This file includes 2 components

Label
TableView

I have then linked and set it's File's Owner class to SampleView. I have attached the XIB file view with SampleView.swift file and this file have only following code in it's class:

@IBOutlet var view: UIView!

I have now created a controller file SampleController with protocols UIViewController, UITableViewDelegate and UITableViewDataSource. I have placed the following code in it's init() func to display the custom component:

init() {
        super.init(nibName: nil, bundle: nil)

        modalPresentationStyle = UIModalPresentationStyle.Custom
        view.addSubview(SampleView())
}

I am using this SampleController to programmatically display as a Modal.

These codes does display as the Modal showing Label and TableView. It also populates the data in TableView. The problem is:

When I tap the cell in table, it doesn't trigger the event on first attempt. When I tap another cell then it trigger the previous cell event.

Any idea why is this happening?

Here are 2 functions used for populating and handling cell tap:

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {

        var cell = tableView.dequeueReusableCellWithIdentifier("CELL")
        if (cell == nil) {
            cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: "CELL")
        }
        cell!.textLabel?.text = sampleData[indexPath.row]["title"]
        return cell
}

func tableView(tableView: UITableView, didDeselectRowAtIndexPath indexPath: NSIndexPath) {
       print("tapped")
}

Souds like a re-use of cells issue. Have you implemented the required `UITableViewDataSource` methods? And if so, can you post them in your question? — koen, Mar 30 '16 at 16:15
@Koen I have mentioned that I have used UIViewController, UITableViewDataSource and UITableViewDelegate in `SampleController` file. Data is also populating well but the tap event is triggered after tapping the second cell. — codelearner, Mar 30 '16 at 16:19
Ok, so what's in your `cellForRowAtIndexPath` and `didSelectRowAtIndexPath` functions? — koen, Mar 30 '16 at 16:23
Darn it! I was using `didDeselectRowAtIndexPath` instead of `didSelectRowAtIndexPath`. That's what will happen when you are programming after midnight. — codelearner, Mar 30 '16 at 17:07

score 3 · Answer 1 · answered Mar 30 '16 at 17:06

3

Darn it! I was using didDeselectRowAtIndexPath instead of didSelectRowAtIndexPath. That's what will happen when you are programming after midnight.

answered Mar 30 '16 at 17:06

codelearner

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This is such a common mistake. Look at upvotes counts on this post http://stackoverflow.com/a/12587624/3077831 – Wujo Mar 30 '16 at 17:13

score 0 · Answer 2 · answered Mar 30 '16 at 16:51

0

You need to use a different method to dequeue the cell:

var cell = tableView.dequeueReusableCellWithIdentifier("CELL", forIndexPath: indexPath)

The check for a nil cell is unnecessary, by the way.

answered Mar 30 '16 at 16:51

TotoroTotoro

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I have received this error now: `unable to dequeue a cell with identifier CELL - must register a nib or a class for the identifier or connect a prototype cell in a storyboard` – codelearner Mar 30 '16 at 16:54
Yes, you will have to fix that. Search SO and you'll find many similar problems. – koen Mar 30 '16 at 16:59
That's not required when you have to create a dynamic cell and using `UITableView` instead of `UITableViewController`. – codelearner Mar 30 '16 at 17:03

TableView cell select event not triggering

2 Answers2