Android Question “Label” automatic resize text depending on length of input

I have a “label” into which I display random data. Usually, is from one character to a max of 20 or so, in one or two lines within the label box which by the way occupies 90% of the device screen.

How do I make it so that when it is only displaying one letter or number it will make the font super big to fit the size of the “label” box, and that when I am displaying the 20 letters or numbers it will shrink the font so that it will fit in the “label” box, even if the font is very small?


Thanks.