Setting the text of a TextView when the desired input is larger than ~4000 in String length()

Question

I am trying to setText(string) on a TextView component and I am not seeing the text I set. The input String is larger than 4000 in length(). I find that if I reduce the text size, the text will display.

How can I setText(string) on a TextView with all of the input String visible without changing the text size of the TextView?

Do I have to split the input String and use multiple TextView objects?

How will I know if the input String will be too large and not be seen, as my TextView may be filled with dynamic text?