Dynamic row heights of a UITableView inside a UITableViewCell

Question

I have a \'master\' UITableView, in which I use different cells that are loaded from .xib\'s. Some of these cells themselves also have a UITableView.

For now I have

Answer 1

First Approach:

1. Create a subclass for child tableView and override intrinsicContentSize.

        class MyOwnTableView: UITableView {
       override var intrinsicContentSize: CGSize {
           self.layoutIfNeeded()
           return self.contentSize
       }
   
       override var contentSize: CGSize {
           didSet{
               self.invalidateIntrinsicContentSize()
           }
       }
   
       override func reloadData() {
           super.reloadData()
           self.invalidateIntrinsicContentSize()
       }
   }
   

2. In Interface builder change the class of your child tableView to MyOwnTableView (subclass UITableView).

3. Set automatic row height for both the parent and child table view.

       tableView.estimatedRowHeight = 60.0;
       tableView.rowHeight = UITableViewAutomaticDimension;
   

Second Approach: 1. Create a height constraint with any value for child tableView and conect an IBOutlet that sets the child tableView height. 2. Set the height constraint's constant to tableView.contentSize.height

    self.tableViewHeight.constant = self.tableView.contentSize.height