CollectionView Move to Section Swift 4.1

collectionviewmovetosection.swift

//Swift 4.1

func moveToSection(section:Int){
        if let sec = self.collectionView?.numberOfSections{
            if sec > section{
                let indexP = IndexPath(item: 0, section: section)
                
                if let cv = self.collectionView{
                    if section == 0{
                        cv.scrollToItem(at: indexP, at: .centeredVertically, animated: true)
                    }else{
                        if let attributes =  cv.layoutAttributesForSupplementaryElement(ofKind: UICollectionElementKindSectionHeader, at: indexP) {
                            let topOfHeader = CGPoint(x: 0, y: attributes.frame.origin.y - cv.contentInset.top)
                            cv.setContentOffset(topOfHeader, animated:true)
                        }
                    }
                }
            }
        }
        
        
    }