I've tried looking over the internet but I generally don't understand how to implement this at all.
What I have is a quiz app with many categories, and some categories are subcategories. Here is a typical example list:
Animals
- Dogs
 - Cats
 - Elephants
 
Countries
Fruits
Vegetables
- Carrots
 - Potatoes
 
I want to be able to expand and collapse Animals and Vegetables so that individual categories within can be selected. Categories without subitems can also be selected.
I thought it best to use an expandablelistview with checkedtextviews or checkboxes. Does anyone have a link to a tutorial that can show me how to do this or if it isn't too much bother show me how to do it?
Thank you very much