Display same size of text on every Android device

Asked Aug 16 '19 at 08:36

Active Aug 16 '19 at 10:15

Viewed 55 times

I am working on an eye testing app for android tv box. I want to display the same size of font or image on every size of tv.

I try using ppi but it does not work.in in and mm is not same in all devices so how i find actual size of inch or mm in pixel in android

DisplayMetrics dm=new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(dm);
        double x=Math.pow(dm.widthPixels/dm.xdpi,2);
        double y=Math.pow(dm.heightPixels/dm.ydpi,2);
        double screeninches=Math.sqrt(x+y);
        double ppi=Math.sqrt(Math.pow(dm.widthPixels,2)+Math.pow(dm.heightPixels,2))/screeninches;

For Example, 10 cm font size appears the same on 32-inch display and 40-inch display

edited Aug 16 '19 at 10:15

asked Aug 16 '19 at 08:36

Harsh Prajapati

Android support physical physical size of the screen (mm, in) Use the below anwser https://stackoverflow.com/questions/8656968/convert-mm-to-pixels?lq=1 – Tshunglee Aug 16 '19 at 08:44
this code does not worked – Harsh Prajapati Aug 16 '19 at 09:47

Display same size of text on every Android device

0 Answers0