Why isn't my text field hint appearing correctly on the text field?

I have an email field that was designed by a graphic designer. I want to use it on my login page but I want to add a hint to the field to tell the user that their email/username goes there. However, when I try to use Android Studio's built-in hint attribute, it shows the hint off-center to the field. How can I use the PNG field the designer made for me and still be able to use hints?