How to remove stroke on image button?

Question

Java

After assigning a picture to the image button element (as far as I noticed the format does not matter, but I used png), the part of the button that is not filled with the image is painted over with a white background, which looks extremely unaesthetic. Is there a way to get rid of this?

Answer 1

android:scaleType="centerCrop"
android:padding="0dp"