I\'m using TextInputLayout from android design library version 25.1.1. With the following code:
TextInputLayout
I know its been a while, but adding this to your TextInputLayout works:
app:boxCornerRadiusBottomEnd="20dp" app:boxCornerRadiusBottomStart="20dp" app:boxCornerRadiusTopEnd="20dp" app:boxCornerRadiusTopStart="20dp"