Why is the font in the TextView changing?

Question

iOS

I have a TextView named GameHistory. And there is this loop:

for i in 0...20 
{
 var str = "\(i) \n"
GameHistory.text = GameHistory.text + str
}

By default, GameHistory has a large font, but after the first iteration, the font becomes almost the minimum size. How to fix it?

Answer 1

Is the container size enough? Isn't the container's font size set to auto-reduce?