Dynamic Text size change according to tablet

Question

With all effort,I finally reached to the end of my first app in android. And thanks to all. But after coming to end, I realized one thing that my app text size is common in

Answer 1

It's quite an old question, but another modern solution can be really handy.
With the Support library, 26+ new text auto sizing is available.
In simple words, you define TextView size and text size gets automatically increased/decreased to match it's bounds:

More on Autosizing TextViews

Add here the ability to set TextView size in a percentage of the screen with the ConstraintLayout, and you can create layouts which look almost identically on any device.