There is a RecyclerView in the form of a grid, the grid consists only of images. When you first load when you scroll down, images begin to appear in terms of animation (placeholder) from Picasso , but when you reach the end of the list, the images are all cached and you can safely scroll up and down (as all images are in the cache).
So this is how to make a printer so that when the activity starts with RecyclerView , all the images are immediately loaded into the cache, and there is no this animation (placeholder).