Solution 1 :

Make image size static,In wrap content it cause compress. set fix size to your root view it solve problem.

Solution 2 :

I believe your items root width is wrap_content, try it with match_parent.

I have a RecyclerView with GrideLayoutManger. When I rotate the phone, the RecyclerView item card size changes.

How can I solve this problem?

Actual card size before rotating phone:

After rotating the phone:

Please add your code so we can see what you did so far.

Try to use setHasFixedSize(true) on your recyclerview

Please add your recyclerview and adapter code

change the width of the card to match_parent