（快速）在外部视图中定义的UICollectionView中的didSelectItemAtIndexPath不起作用

Question

This is my problem. I have made a View Controller which inherited from UIViewController, UICollectionViewDataSource and UICollectionViewDelegate. So, I have this:

class myController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate {
...
}

And then, I made a custom view that it has a UICollectionView, something like this:

class externalCollectionView: UIView {
    var myCollection: UICollectionView?

    override init(frame: CGRect){
        super.init(frame: frame)
        let layout: UICollectionViewFlowLayout = UICollectionViewFlowLayout()
        layout.sectionInset = UIEdgeInsets(top: 10, left: 20, bottom: 10, right: 20)
        layout.itemSize = CGSize(width: 130, height: 130)
        layout.minimumLineSpacing = 10
        layout.minimumInteritemSpacing = 10

        myCollection = UICollectionView(frame: CGRectMake(0, 120, frame.size.width, frame.size.height - 120), collectionViewLayout: layout)
        myCollection!.registerNib(UINib(nibName: "customCellView", bundle: nil), forCellWithReuseIdentifier: "myItem")

        self.addSubview(myCollection!)
    }
}

So, into my view controller I set delegate methods and features with this code in the viewDidLoad method:

    customView = externalCollectionView(frame: self.view.frame)
    customView.myCollection!.dataSource = self
    customView.myCollection!.delegate = self
    customView.myCollection!.userInteractionEnabled = true
    customView.myCollection!.allowsMultipleSelection = true

with this, the method didSelectItemAtIndexPath never is called. Yes, I have a custom cell collection view (in a xib), but I even have made it without graphical elements (empty) and the method is not called. I have implemented several solutions that I have found on Internet but nothing works. Anyone have idea what is happen?

Answer 1

have you tried to connect from Storyboard or Xib your UICollectionViewCell to file's owner delegate and dataSource? maybe this could help

Answer 2

You just have to set userInteractionEnabled to true for the custom view. If the parent view has no user interaction enabled, then it's subviews won't recognise any touch events.