Android Question Hierarchical View

[EduardoElias]

Does anyone know if a library that draw like this:

I need to connect at least 3 levels, the drawing format does not matter (there are some horizontal others vertical)

Commonly called hierarchical view, grapho view, etc

 

[klaus]

You may have a look at this thread:
https://www.b4x.com/android/forum/t...nodes-connected-by-arrows.143069/#post-906810