If you want to create cell as per you image aspect ratio

[mahendra-lariya]

func collectonView(_ collectionView: UICollectionView, mozaik layoyt: ADMozaikLayout, geometryInfoFor section: ADMozaikLayoutSection) -> ADMozaikLayoutSectionGeometryInfo {
let W = self.view.frame.size.width/2 // - 10
let rowHeight: CGFloat = self.view.frame.size.width/12 //W //93
let columns = [ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W), ADMozaikLayoutColumn(width: W)]
let geometryInfo = ADMozaikLayoutSectionGeometryInfo(rowHeight: rowHeight,
columns: columns,
minimumInteritemSpacing: 1,
minimumLineSpacing: 1,
sectionInset: UIEdgeInsets(top: 5, left: 0, bottom: 5, right: 0),
headerHeight: 1, footerHeight: 1)
return geometryInfo
}

func collectionView(_ collectionView: UICollectionView, mozaik layout: ADMozaikLayout, mozaikSizeForItemAt indexPath: IndexPath) -> ADMozaikLayoutSize {
    let image = photos[indexPath.row].image
    let aspectratio = image.size.width/image.size.height
    
    if aspectratio == 1/1 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 6)
    }
    if aspectratio == 2/3 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 9)
    }
    if aspectratio == 3/2 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 4)
    }
    if aspectratio == 2/1 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 3)
    }
    if aspectratio == 1/2 {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 12)
    }
    else {
        return ADMozaikLayoutSize(numberOfColumns: 1, numberOfRows: 6)
    }
}