UITableView reload issue - ios

Question

I have UITableView inside UIScrollView and implemented paging with which I get 10 records in each page. I am facing a problem when after the IndexPath row is 9 then again UITableView reloads cells starting from row 2 due to which all the Pages are loaded once. Here is my code:
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if listData != nil{
print("list count in numberOfRowsInSection\(listData?.count)")
return (listData?.count)!
}
return 0
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
print("CellForRowIndexPath:\(indexPath.row)")
let cell: NewPostCell = tableView.dequeueReusableCell(withIdentifier: "NewPostCell") as? NewPostCell ??
NewPostCell(style: .default, reuseIdentifier: "NewPostCell")
cell.delegate = self
cell.updateWithModel(self.listData![indexPath.row] as AnyObject)
cell.tbleUpdateDelegate = self
cell.selectionStyle = .none
cell.accessoryType = .none
return cell
}
func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
print("in will display row - \(indexPath.row)")
if pageNumber >= totalPages {
return
}
else
{
if (listData?.count)! == 10*pageNumber{
if (listData?.count)! - 3 == indexPath.row{
if !boolHitApi{
boolHitApi = true
return
}
pageNumber += 1
self.callService()
}
}
}
}
override func viewWillAppear(_ animated: Bool) {
callService()
}
func callService(){
SVProgressHUD.show()
setPageToOne()
ProfileApiStore.shared.requestToGetProfile(loggedInUserId: UserStore.shared.userId, userId: UserStore.shared.userIdToViewProfile, limit: "10", page: String(self.pageNumber), completion: {(result) in
SVProgressHUD.dismiss()
self.totalPages = result.totalPages!
if self.listData?.count == 0 || (self.pageNumber as AnyObject) as! Int == (1 as AnyObject) as! Int{
self.listData = result.userdata?.newPostData
} else {
self.listData = self.listData! + (result.userdata?.newPostData)!
}
self.tableView.reloadData()
})
}

Answer 1

The code you mentioned in the comments adds 10 rows to the datasource (self.listData) but you are only calling insertRows with one row.
You could loop through them, adding an item to the array and adding a row each time:
func callService() {
ProfileApiStore.shared.requestToGetProfile(loggedInUserId: UserStore.shared.userId, userId: UserStore.shared.userIdToViewProfile, limit: "10", page: String(self.pageNumber), completion: {(result) in
SVProgressHUD.dismiss()
self.totalPages = result.totalPages!
let newItems = result.userdata?.newPostData
tableView.beingUpdates()
for item in newItems {
self.listData.append(item)
let indexPath = IndexPath(row:(self.listData!.count-1), section:0) // shouldn't this be just self.listData!.count as your adding a new row?
tableView.insertRows(at: [indexPath], with: .left)
}
tableView.endUpdates()
})
}