What is textview.setTextSize()?

Question

In my android game, there is a textview. I am setting the text size using following code.

textview.setTextSize(30);

30 is in pixels. But what exactly it is ? Is it the height or width of a character ? Is it ordinal no. ?

Answer 1

for set text size in android (java or kotlin) just use SP

textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14);