How this "effect/view" is called?

I'd like to do something simmilar to it:

https://www.youtube.com/watch?v=ch5U-bO5trg

And the first question is:

What is the name of this view??

And the second question is :

Question its 2015, what is the best way to display images to android device. There will be 300+ pictures (with short description) I have seen questions like this here, but not satisfied myself.

Thanks for answers cheers :)