Animate cell when pressed using Swift 3

Question

My problem is really simple. I would like to animate a cell within a collectionView. Indeed, I would like to show a grey background behind the cell and scale down the image

Answer 1

Swift : 4 You need to implement custom UICollectionViewCell, change the contentView OR imageView transform when the cell is selected

override var isSelected: Bool {
                didSet{
                       UIView.animate(withDuration: 1.0, animations: 
                        {
                             self.contentView.transform = self.isSelected ? CGAffineTransform(scaleX: 0.95, y: 0.95) : CGAffineTransform.identity
                             self.contentView.backgroundColor = UIColor(red: 0.95, green: 0.95, blue: 0.95, alpha: 1)
                        }) { (true) in
                        UIView.animate(withDuration: 0.5, animations:
                        {
                             self.contentView.transform = self.isSelected ?  CGAffineTransform(scaleX: 1.0, y: 1.0) : CGAffineTransform.identity
                             self.contentView.backgroundColor = UIColor.clear
                        })
                    } 
                 }
             }