title: Android ExpandableListView about arrays
body: <p>I'm planning to add expandablelistview in my activity. I did some researches on the Internet but none of them fits what I want. I read also that expandablelistview has parent and child elements. What I want to do is that the parent would be the categories let's say it's fruits, then its children are Apple, Lemon, Almonds, etc. I'd like to try that by using arrays, but am not so familiar with List and Hash.. Please give me some snippets of codes to start with.. appreciate any help. Thanks.</p>