What is the equivalent of “android:fontFamily=”sans-serif-light" in Java code?

Question

My question is quite simple:

In every of my textview, I am currently using the attribute

android:fontFamily=\"sans-serif-light\"

Answer 1

In my opinion there is still a way to apply system fonts programatically on TextView without having any memory issue and that is using textview.setTextAppearance method :

if(condition){
    textView.setTextAppearance(context,R.style.styleA);
}else{
    textView.setTextAppearance(context,R.style.styleB);
}