Q:

How to get File Navigator View in MacOS App

I have seen in many apps a simple tree navigator view, like this in Xcode:

I am creating my own IDE and would like to know if there is there a view for this?

A:

As @TheNextman said, I need NSOutlineView, which was perfect. I followed this tutorial:
https://www.raywenderlich.com/1201-nsoutlineview-on-macos-tutorial

