How to set Floating Action Button image to fill the button?

Question

Usually icons are set for floating action buttons, but I need to set an image, so I can make a circular image.

I added it to the project (using Android Studio-> New

Answer 1

1. Override image size dimension for nested image in FAB by adding below line in dimens.xml

56dp

     (I used 56dp cause fab size in guidelines is 56dp)

2. add app:tint="@null" and android:scaleType="fitCenter" in FAB.