General view of a multilevel list using an array adapter in the box layout and passing JSON data

I am creating a general view of a multi-level list box in a navigation drawer layout.

The idea is to pass an array to represent a list, which generates a new array or adds a list of arrays and passes it every time the user taps a list item.

problems and possible solutions in this idea:

• Each text view looks the same because there is only one text view in the list view. Solution: tweak the style of the text view each time by overriding the getter method of the array adapter.

• Collecting data in multilevel dimensional form from a JSON object solution: an iterative search or data structure to serve a purpose.

• There is a main activity and an asynchronous task that retrieves a JSON object. The problem is that I am calling the select item method from my main activity, I cannot access the data as the connection class does not complete even after the post method does.