Add "Learn more about wifi" view
I don't think carrie has proposed a UI for this yet, however it will need to be implemented at some point. This will be somewhat related to issue #9 (closed) which proposes moving info from the "join same wifi" screen to the "learn more about wifi" view.
The implementation of "Learn more about wifi" should be another fragment which is added by the SwapActivity. The recommented way to communicate info from the "join same wifi" fragment to the SwapActivity - telling it to display the "show more info about wifi" fragment - is to store a reference to the SwapActivity in the onAttach() method of the fragment. Then you can invoke methods on the activity (other than "next screen"). In this case, it would be a method such as "showMoreAboutWifi()".
Technically, people suggest making the activity implement an interface which defines communication methods, but these fragments will realisticly only live inside the SwapActivity anyhow.
