I come with 2 questions:

First one is about Shared Preferences. I have a login page that requests data from the server everytime I do the login. I was wondering if I can store that data (most of them are URL's and Name) in Shared Preferences to load them faster if nothing changed.

I have searched about Shared Preferences and I found that it basically is an XML file stored in local path so I don't think there is a problem.

My second problem that I have searched and didn't find anything: Is there a way to hide the Activity while doing an auto login? I already implemented the auto login but I need to hide the activity and pass through the next one without the user interacting with the login one.