表格视图的每个单元格的Alamofire请求

Question

I want to populate a table view by parsing JSON data received thanks to several Alamofire requests. However, the thing is that each cell has a different request from the others. Each cell makes a request based on IndexPath. Since the calls are asynchronous, not all requests are achieved...

My code:

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
    var name = ""
    let url = "https://........"+items[indexPath.section][indexPath.row]+"......"

    Alamofire.request(url).responseJSON { (responseData) -> Void in
        if((responseData.result.value) != nil) {
            let swiftyJsonVar = JSON(responseData.result.value!)
            let object = swiftyJsonVar["results"][0]
            print(object)
            name = object["name"].stringValue
            cell.textLabel?.text = name
        }
    }
    return cell
}

How would it be possible to achieve every request? Thanks in advance!

Answer 1

You should keep track of hooking indexpath with every request so you know what the value returned is for

 struct Item
{
    var indexPath:NSIndexPath!

  func getData(index:NSIndexPath)
  {

      let url = "https://........"+items[indexPath.section][indexPath.row]+"......"

      Alamofire.request(url).responseJSON { (responseData) -> Void in
    if((responseData.result.value) != nil) {
        let swiftyJsonVar = JSON(responseData.result.value!)
        let object = swiftyJsonVar["results"][0]

         globalArr// store indexpath and value

         /// remove indexoath from allDownloads

         /// send refresh to table

      }
     }

  }

}

in cell for row

     if(indexPath in globalArr)
      {
         // show it
      }
      else
      { 

           // check whether it's download is in progress to avoid multiple same requests when scroll because of dequeuing 
         if(allDownloads doesn't contain inexpath)
         {

              // create object of item and start download

              // allDownloads.add(object)

          }

       }

globalArr: keep track of all downloaded objects

allDownloads : keep track of in progress downloads