Android Java recycle View scrolling: will it redownload images?

Question

I am using picasso in my recycler view. I am wondering about the caching: When I scroll down the images disappear and when I scroll up again, they show again. But its displaying the progress bar for downloading and it takes like a second to show it.

my code

                Picasso.get().load(profileUrl).placeholder(R.drawable.placeholder_image).fit().into(postViewHolder.profileImg);

I want to avoid downloading the same images multiple times. Or is it just the caching that takes some time to display the already cached image again?

question from:https://stackoverflow.com/questions/65887497/android-java-recycle-view-scrolling-will-it-redownload-images

Answer 1

Picasso should cache images automatically. You can can check if it's cached by using the setIndicatorsEnabled method on the Picasso singleton instance.

• Red: Downloading over the network.
• Blue: Image was cached on disc.
• Green: Image was cached in memory.