im new to this forum and new to android, i'm doing a project on my school and i need some help here, since im new to android i waa know what type of component i should use to show those dropdown lists(Where it says Projeto 1, etc...). And after i click on the project it expands and creates another compenent (listview?) which shows the members associated with that project: Project Page
And when i click on the icon/button near Peter Parker it changes it fragment to this view which is a form that assigns a ranking to a person after applying it: Ranking Page
Im sorry if my english is bad, i'm portuguese and i'm new to programming. Thanks for viewing my post and awsnering.