I have seen a lot of answers with my query, but nothing solved mine. I am opening a new question here.
I have an API, which returns data. I am showing it in the header and the cell. And, there is a load more button too, if the API returns 1 for has_more key. So, when I tap on the load more button I call that API again so that I can get the leftover data, but it refreshes the entire table view as well because I reload the table view.
So, now, what I want to do is I want to append the new cells and headers without reloading the existing table view so that the previous headers and cell in the tableView are not affected.
This is the API function:
func getOverallWinners(has: Int)
{
let params = ["api_token": Constants.USER_INFO["api_token"].rawValue,"has_more": has]
ServiceHelper.sharedInstance.sendRequest(path: "contest-overall-winning", params: params, showSpinner: true)
{ (response, error) in
if error != nil
{
print("Error: \(error.debugDescription)")
}
else
{
self.winnerArr = response["result"].arrayObject as? Array<Dictionary<String,Any>>
self.overallL.text = "$\(String(describing: response["overall"].rawString()!))"
self.winningTbl.beginUpdates()
let indexPath:IndexPath = IndexPath(row:((self.winnerArr?.count)! - 1), section:0)
self.winningTbl.insertRows(at: [indexPath], with: .left)
self.winningTbl.endUpdates()
self.winningTbl.scrollToRow(at: indexPath, at: .bottom, animated: true)
let loadMore = response["has_more"].rawValue as? Int
if loadMore == 0
{
self.constantHeight4LoadMore.constant = 0
}
else
{
self.constantHeight4LoadMore.constant = 40
}
}
}
}
Here are te tableView Delegate:
func numberOfSections(in tableView: UITableView) -> Int {
return (winnerArr?.count)!
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let rowArray = winnerArr![section]["response"] as? Array<Dictionary<String,Any>>
return rowArray!.count
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return 60
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 60
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView?
{
self.prizeArr.removeAll()
let header = tableView.dequeueReusableHeaderFooterView(withIdentifier: cellReuseIdentifier) as! OverallHeaderCell
let resArr = self.winnerArr![section]["response"]! as? Array<Dictionary<String,Any>>
for prize in resArr!
{
let doubleStr = prize["prize"] as? NSString
self.prizeArr.append((doubleStr?.doubleValue)!)
}
let sumedStr = prizeArr.reduce(0, +)
header.textL[0].text = winnerArr![section]["name"] as? String
header.textL[1].text = "$\(sumedStr)"
header.textL[3].text = "\(String(describing: resArr!.count))"
return header
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "owCell", for: indexPath) as! OWCell
let response = winnerArr![indexPath.section]["response"] as? Array<Dictionary<String,Any>>
cell.collectionL[0].text = (response![indexPath.row]["name"] as! String)
cell.collectionL[1].text = "$\(String(describing:response![indexPath.row]["prize"]!))"
cell.collectionL[2].text = "WIN"
cell.selectionStyle = .none
return cell
}
I tried the beginUpdates() above but nothing worked as every time I will click the load more button I will receive new headers. In those headers there will be the new cells. Can anyone help?
This is not a duplicate beacause that solution is for inserting new rows in a section, but here I have to first create new sections and then add new rows in them. I do not watnt to touch the old sections.
