How to create static cells with dynamic cell heights with Swift

For Swift 3

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

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

UILabel:

Set numberOfLines = 0 via programmatically or set lines to zero in attributes inspector of the UILabel.

UITextView:

Let's select your text view and uncheck the scrolling enabled like as below image.

Add the below code to your view controller:

Swift 5:

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
    return UITableView.automaticDimension
}

func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
    return UITableView.automaticDimension
}

Swift 2.2:

 func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
   return UITableViewAutomaticDimension
 }

 func tableView(tableView: UITableView, estimatedHeightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
   return UITableViewAutomaticDimension
 }

All you have to do is set proper AutoLayout inside the cell, so the height increases based on the length of the description text. Then you need to set the following in your viewDidLoad

tableview.rowHeight = UITableViewAutomaticDimension
tableview.estimatedRowHeight = 44

Please note: you need to set the numberOfLines of UILabel to 0