Android : how do I re-show progressBar when a placeholder is shown using Piccaso?

I have an listView with an image in each of its items.

I want to have a progressBar whenever the image is not yet loaded in each item.

Including when the list is recycled and the placeholder is shown again.

In addition I when I used to download the images myself without Picasso

I used to set the imageUrl as the tag for each item and check the url is still there before I load the image (or it's replaced because of recycle and then there is no need to load the callbacked image).

How do Picasso handle this recycle?

How can I configure Picasso image cache?