MIT App Inventor: Different text sizes in the same button?

Question

I am making a dialer (phone) app in App Inventor. I wanted to put the ABC after the number (1 abc), so that people could dial stuff like 1-800-FLOWERS. I would like to know how to make the abc font size smaller in the same button?

Answer 1

In App Inventor you can't change the font size in the same button.text property.
Alternatively you could use an image with your text and put it as button.image.

Answer 2

You can set a Html String to a text view

text.setText(Html.fromHtml("<font size=\"32\">1</font><font size=\"20\">abc</font>"));

You can refer to this for details