Demo App

[ghost]

Hi,

I noticed the following in the demo.

class Node: NSObject, TreeNodeProtocol {
    var identifier: String
    var isExpandable: Bool {
        return children != nil
    }

It might be worth adding this additional check. Not sure if this solves issues some others have reported.

class Node: NSObject, TreeNodeProtocol {
    var identifier: String
    var isExpandable: Bool {
        guard children != nil, children!.count > 0 else {
            return false
          }
      return true
    }

[gringoireDM]

Children can be an empty array. This would mean that the parent IS a folder but that for now it's empty.