performDrop - Drag and Drop

performDrop.swift

func dropInteraction(_ interaction: UIDropInteraction, performDrop session: UIDropSession) {
        
        if session.canLoadObjects(ofClass: String.self) {
            
            session.loadObjects(ofClass: String.self) { (items) in
                let values = items as [String]
                self.dropTextView.text = values.last
                                                       
            }
        } else if session.canLoadObjects(ofClass: UIImage.self) {
            
            session.loadObjects(ofClass: UIImage.self) { (items) in
                let images = items as! [UIImage]
                self.dropImageView.image = images.last
                                                        
            }
        }
    }