Mult-level list (Tree)

I have solved my last issues with your guys help. But then I ran into one that I'm having a bit of a hard time figuring out as well. I looked at all tutorials online and they half solve things, kinda.

Anyhow, does anyone know of a reliable way to have an editable multi-level list?
Basically like a directory tree?
1. Item A
1a. Item B
1b. Item C
1aa. Item D
2. Item E

etc.

I have thought of perhaps using a custom widget with maybe custom functions, by using animated_tree_view package from https://pub.dev/packages/animated_tree_view to achieve this, would you guys have any clue on what code I need to put into the custom code parts in widget and if necessary custom function?

1
10 replies