Dynamic UITableView height

1. Subclass your UITableView to override the intrinsicContentSize to be its contentSize, like this:

   override var intrinsicContentSize: CGSize {
       return contentSize
   }
   

2. Then use automatic row heights for your table, so your exampleViewController's viewDidLoad would have:

   tableView.estimatedRowHeight = 44
   

   And the UITableViewDelegate function:

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

3. When you receive data from your API and reload your table, just call:

   tableView.invalidateIntrinsicContentSize()
   

   This will tell your table to resize itself to the same size as its contents (because of the override), and move your bottom image as needed.

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If your storyboard throws an error saying that your UIScrollView has an ambiguous height because there's no height constraint on the UITableView, select your UITableView and give it a placeholder intrinsic size in the Size Inspector.

The answers using the subclassing technique are incomplete. You should also override layoutSubviews() like this.

public class DynamicSizeTableView: UITableView
{
    override public func layoutSubviews() {
        super.layoutSubviews()
        if bounds.size != intrinsicContentSize {
            invalidateIntrinsicContentSize()
        }
    }

    override public var intrinsicContentSize: CGSize {
        return contentSize
    }
}