Pagination in IOS

gistfile1.txt

add ```UIScrollViewDelegate``` in tableview/collectionview
``` var isDataLoading:Bool=false
    var pageNo:Int=1
    var limit:Int=0
    var offset:Int=0
    var connectionCount:Int=0```
   

```override method  func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
        if scrollView == collectionView{
            
            if ((collectionView.contentOffset.y + collectionView.frame.size.height) >= collectionView.contentSize.height)
            {
                if !isDataLoading{
                    DispatchQueue.main.async {
                        self.activityIndicator.startAnimating()
                    }
                    isDataLoading = true
                    self.pageNo=self.pageNo+1
                    self.limit=self.limit+20
                    self.offset=self.limit * self.pageNo
                    loadCallLogs(offset: self.offset, limit: self.limit)
                }
            }
        }
        
    }```