android - I want change the textSize but I don't want change thickness,how can I do?

I used the textview to display the temperature, it should
be like this

href="https://i.stack.imgur.com/X0kl9.png" rel="nofollow noreferrer"> src="https://i.stack.imgur.com/X0kl9.png" alt="enter image description
here">

when I change the textSize,
it display like this

href="https://i.stack.imgur.com/cGwlB.png" rel="nofollow noreferrer"> src="https://i.stack.imgur.com/cGwlB.png" alt="enter image description
here">

I just want change the size
of the textview, but I don't want it to be more thicker,how should I do with this
problem?