Вторая часть статьи про анимацию в RecyclerView
https://medium.com/@patrick_iv/enter-animation-using-recyclerview-and-layoutanimation-part-2-grids-688829b1d29b
https://medium.com/@patrick_iv/enter-animation-using-recyclerview-and-layoutanimation-part-2-grids-688829b1d29b