When you bump the dp value up — say, from 411 to 502 — you're essentially telling Android your screen is "wider" than it physically is. The operating system responds by shrink ...
Hack is designed to be a workhorse typeface for source code. It has deep roots in the free, open source typeface community and expands upon the contributions of the Bitstream Vera & DejaVu projects.
Sometimes we want some text to have a fixed width, and it will automatically reducing the font size when the number of characters is too large, so that the text is always in one line without wrapping.