Dynamic Height Calculation of UITableViewCell depend upon TextView's height

Question

I have given the leading and trailing to textview inside content of tableview . I want to dynamically calculate the height of Tableviewcell. the height calculation is working fine sometimes but sometimes not working particular devices like 5c.

i have used following code to estimate the height of text :

func estimateFrameForText(text: String) -> CGRect {
    let size = CGSize(width: self.view.frame.size.width, height: 10000000)
    let options = NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin)
    return NSString(string: text).boundingRect(with: size, options: options, attributes: [NSFontAttributeName: UIFont.init(name: FontStyle.FontName.kDefault, size: 15.0)!], context: nil)
}

The important thing here is the text is HTML text, I have converted it into plain text. then that plain text is passed to above functions.

Answer 1

1. Give top,bottom,leading and trailing to textview inside content of tableview cell.
2. Disable the scrolling of textview. Then and then, this method works. It is generally used in chat cells, wherein we want the property of automatic Data detection of links, phone numbers minus the scrolling of uitextview.

3. Set automatic row height calculation using below methods of table view

   func tableView(_ tableView: UITableView,heightForRowAt indexPath: IndexPath) -> CGFloat
   {
      return UITableViewAutomaticDimension
   }
   
   func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat
   
   {
      return 100
   }