UICollectionView didSelectItemAtIndexPath not called when tapped on UITextView

I would suggest to use UIGestureRecognizer for each cell and when it taped to send it to UITextView or whatever , perhaps there maybe a better solutions , but I would use this 1 because of simplicity reasons.

didSelectItemAtIndexPath is called when none of the subView of collectionViewCell respond to that touch. As the textView respond to those touches, so it won't forward those touches to its superView, so collectionView won't get it.

override hitTest:withEvent method of your collectionViewCell or CollectionView subclass and always return self from them.so it explicitly makes collectionView as first responder.