'Why UICollectionView didSelect method does not work?

I've created my UICollectionView programmatically and in this case my didSelectItemAtIndexPath method does not call at all.

let collectionView = UICollectionView(frame: CGRect(x: 0, y: 0, width: CGRectGetWidth(self.view.frame), height: 360), collectionViewLayout: layout)
collectionView.delegate = self
collectionView.dataSource = self
collectionView.userInteractionEnabled = true

So, what is a problem? Why when I tap on the cells I do not get my response?

func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
    print("Selected Cell: \(indexPath.row)")
}

Solution 1:^[1]

i Know this may be late, but for the sakes of feature purpose, CollectionView[didSelectItem] not responding to touch could be as a result of you also enalbing addGestureRecognizer so check if you have set a gesture recognizer on your CollectionView like so collectionView?.addGestureRecognizer(tapGestRecognizer)

Solution 2:^[2]

I just encountered this case.

Did you put a button or an interactive view in a collection view cell? Your touch is handled by it, then didSelect isn't called.

Turn off User Interaction Enabled property by Interface builder, or set false programmatically.

Solution 3:^[3]

check in UiCollectionviewCell subclass isUserInteractionEnabled property or set it programaticaly to true

self.contentView.isUserInteractionEnabled = true

Solution 4:^[4]

Be sure that you don't have UICollectionViewDelegate and UICollectionViewDelegateFlowLayout together.

Solution 5:^[5]

Select ViewController.swift in Project Navigator. Update the class declaration with this:

class ViewController: UIViewController, UICollectionViewDelegateFlowLayout, UICollectionViewDataSource 


//After class declaration create a new variable:

 var collectionView: UICollectionView!



  override func viewDidLoad() {
   super.viewDidLoad()
     // Do any additional setup after loading the view, typically from a nib.
   let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
   layout.sectionInset = UIEdgeInsets(top: 20, left: 10, bottom: 10, right: 10)
   layout.itemSize = CGSize(width: 90, height: 120)

   collectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: layout)
   collectionView.dataSource = self
   collectionView.delegate = self
   collectionView.registerClass(UICollectionViewCell.self, forCellWithReuseIdentifier: "Cell")
   collectionView.backgroundColor = UIColor.whiteColor()
   self.view.addSubview(collectionView)
}



func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {
    print("Selected Cell: \(indexPath.row)")
}

Solution 6:^[6]

I discovered a strange edge case where I had accidentally specified a class for the cell’s container view (and a class that was not valid for the container view), and everything looked fine, I did not receive any warnings, but didSelectItemAt would not be called.

That's 5 hours of my life I would like back.

Solution 7:^[7]

In my case, I was implementing hitTest in UICollectionView's parent view to intercept hit event, so didSelectItemAt did not call.

override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
    let p = convert(point, to: v)
    if v.point(inside: p, with: event) {
        return v.hitTest(p, with: event)
    }
    return super.hitTest(point, with: event)
}

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution	Source
Solution 1	Milad Faridnia
Solution 2	Ito Katsuyoshi
Solution 3	Dimitar Stefanovski
Solution 4	Massimo Pavanel
Solution 5	Dravidian
Solution 6	Rob
Solution 7	pqteru

'Why UICollectionView didSelect method does not work?

Solution 1:[1]

Solution 2:[2]

Solution 3:[3]

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Solution 5:[5]

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