sdk - Anyone know of an iphone tutorial for managing hierarchical data? -

For example, suppose you have the element {A, B, C}

There is a list and you click on A and it gives you a list of elements that are of A (J, K, Z), and if you click on B, then you gave a list of elements of B. Which is {D, E}, etc.

Any advice would be grateful. Thank you.

To store the data, you can use NSDictionary to create UI, Can be used in recursively.