Android fix font size

Many users like go to phone setting and set their font size dislay to large, even extra large. If you don’t fix it in your app, a button in nomal font size will look like this. 

But in extra large font size it will look like this.

To fix it, we do this in code.

Textview.setTextSize(android.util.TypedValue.COMPLEX_UNIT_DIP, 15);

Or with a Button

Button.setTextSize(android.util.TypedValue.COMPLEX_UNIT_DIP, 15);

You can also choose another TypedValue like COMPLEX_UNIT_PT for pixel, and COMPLEX_UNIT_IN for inches

Now text size will be preserve even when user change their font size.