Improving spanned/spannable performance in setting TextView RecylcerView

I have a RecyclerView with a number of TextViews. One of these TextViews is populated with a Spanned, via a marked up String taken from an ArrayList<Object>. After reading this tutorial by Florina Muntenescu, I realize I can likely improve my performance by using Spannable Factory. My biggest problem is that her code is written in Kotlin (and I'm not quite there yet).

As far as I can tell, this is the key information,

Let’s say that we want to reuse a TextView and set the text multiple times, like in a RecyclerView.ViewHolder...

val spannableFactory = object : Spannable.Factory() {
    override fun newSpannable(source: CharSequence?): Spannable {
        return source as Spannable
    }
}`

Set the Spannable.Factory object once right after you get a reference to your TextView. If you’re using a RecyclerView, do this when you first inflate your views.

textView.setSpannableFactory(spannableFactory)

So, suppose I have this simple RecyclerView adapter setting a single Spanned TextView.

@Override
public void onBindViewHolder(RecyclerViewHolder rvh, int position){

    String string =arrayList.get(position).getValue();
    Spanned spanned = getSpannedValue(string);
    rvh.tv.setText(spanned);
}

How can I change my code to utilize the recommendation from Florina?

In java you should just override method newSpannable, in its implementation cast source (CharSequence) to Spannable and set this factory to TextView (tvText in my case)

       tvText.setSpannableFactory(new Spannable.Factory(){
            @Override
            public Spannable newSpannable(CharSequence source) {
                return (Spannable) source;
            }
        });

Keep in mind, it should be set from ViewHolder's constructor, not onBindViewHolder. When you get reference to it by findViewById.