change font of all textviews

Question

is there a way to change the fonts of all textviews in a layout?

currently im using this to change fonts manually.

TextView txtAppName = (TextView) f         


        

Answer 1

All system default fonts you can get are in:

android/res/values/styles.xml

You can change them only through system applications such as Settings. Maybe you can call some system function that does it. But it seems inprobable, as that would cause problems to all other aplications.