Swift: How to reload row height in UITableViewCell without reloading data

Question

I have a case in which I have to reload only height of a UITableViewCell.

but if I call the function

tableView.reloadRowsAtIndexPaths([NSIndexPath(forRow: webView.tag, inSection: 0)], withRowAnimation: .Automatic) 

it reloads the height as well as the data of the cell. How can i just control the height of cell in Swift?

This is my cellForRow block :

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {     if indexPath.row == 0 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! CustomTableViewCell1     cell.heading.text = headerText         return cell     }      else if indexPath.row == 1 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell2", forIndexPath: indexPath) as! CustomTableViewCell2         ImageLoader.sharedLoader.imageForUrl(self.headerImage , completionHandler:{(image: UIImage?, url: String) in             cell.mainImage.image = image         })         return cell     }     else if indexPath.row == 2 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell3", forIndexPath: indexPath) as! CustomTableViewCell3         //cell.aurthorImage.image = UIImage(named : "obama")         ImageLoader.sharedLoader.imageForUrl(self.headerImage , completionHandler:{(image: UIImage?, url: String) in             cell.aurthorImage.image = image         })         cell.aurthorImage.tag = aurthorID         cell.aurthorImage.layer.cornerRadius = cell.aurthorImage.frame.height/2         cell.aurthorImage.clipsToBounds = true         cell.aurthorImage.userInteractionEnabled = true         cell.aurthorImage.addGestureRecognizer(aurthorImageTapRecignizer)         cell.aurthorName.text = self.authorName         cell.time.text = self.time         self.followButton = cell.followButton         return cell     }      else if indexPath.row == 3 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell4", forIndexPath: indexPath) as! CustomTableViewCell4         let htmlHeight = contentHeights[indexPath.row]          cell.webElement.tag = indexPath.row         cell.webElement.delegate = self         cell.webElement.loadHTMLString(HTMLContent, baseURL: nil)         cell.webElement.frame = CGRectMake(0, 0, cell.frame.size.width, htmlHeight)          return cell     }     else if indexPath.row == 4 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! CustomTableViewCell1         cell.heading.text = "Related Posts"         return cell     }     else if indexPath.row == 5{         let cell = tableView.dequeueReusableCellWithIdentifier("cell6", forIndexPath: indexPath) as! CustomTableViewCell6         return cell      }     else if indexPath.row == 6 {         let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! CustomTableViewCell1         cell.heading.text = "Comments"         return cell     }     else if indexPath.row == 7 {          let cell = tableView.dequeueReusableCellWithIdentifier("cell5", forIndexPath: indexPath) as! CustomTableViewCell5           let htmlHeight = contentHeights[indexPath.row]         self.commentSection = cell.commentsView         self.commentSection.tag = indexPath.row         self.commentSection.delegate = self         let url = NSURL(string: commentsURL)         let requestObj = NSURLRequest(URL: url! )         self.commentSection.loadRequest(requestObj)         self.commentSection.frame = CGRectMake(0, 0, cell.frame.size.width, htmlHeight)             commentSectionDidNotLoad = false              return cell     }     else {         let cell = tableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! CustomTableViewCell1         cell.heading.text = headerText         return cell     } 

Answer 1

You can use this code to update the cell's height without reloading their data:

tableView.beginUpdates() tableView.endUpdates() 

You can also use this method followed by the endUpdates method to animate the change in the row heights without reloading the cell.

UITableView Class Reference