Knowledge of layout features for mobile devices, tablets iOS, Android?

Question

Android

Where can I find these features? I know something, but I'm not sure that this knowledge covers this item in vacancies:
Knowledge of layout features for mobile devices, iOS, Android tablets

Answer 1

Go to interviews.
If you ask such a question, then ask what is the correct answer.
If they don't answer, you can laugh in their faces - "ha ha! You don't know yourself, but why the hell are you asking?"
If they answer, remember and go more, collect information

Answer 2

Hmmm, only knowledge gleaned from personal development experience comes to mind.
But, alternatively, Apple has Guidelines.