How to implement Login Activity?

Question

Java

Hello! There is a start Activity in which the user is prompted to enter a username and password. At the bottom there are two buttons "registration" and "restore" how best to implement the functions? When you click on the button, open an Activity or a fragment? How right?

Answer 1

depends on your architecture, but purely functionally, no matter
what, I would do it on fragments

Answer 2

Activate is better.

Answer 3

If I were you, I would create one common authorization activity, where by default the login / password entry fragment is launched. And when you click on the recovery / registration buttons, he substituted the necessary fragments. Navigation will be easier, and fragments will be faster than activation. In general, try to make activities for a large group of tasks, and use fragments to display subgroups. Easier IMHO.