Android: How to have different text sizes for different screen sizes with dynamic TextViews?

Question

I have a TableLayout on my app where I am adding rows programatically by getting data from the local SQLite DB. Since I also create the TextViews on each row programatically I need to specify one text size for them, and that size won't be suitable for all screen sizes. If I pick one that looks good on a smartphone, for instance, it will look too small on large tablets.

If I had the TextViews on the XML I could simply create a different layout for each screen size, but how can I achieve that flexibility in text size creating the TextViews programatically?

Thanks a lot in advance.

Do this: http://stackoverflow.com/questions/9494037/how-to-set-text-size-of-textview-dynamically-for-diffrent-screens — jsimon, Dec 14 '12 at 02:52
You should read this: http://stackoverflow.com/questions/5033012/auto-scale-textview-text-to-fit-within-bounds It may helps you. — VAdaihiep, Dec 14 '12 at 03:00

Daniel Scocco · Accepted Answer · 2012-12-14T13:15:43.490

I ended up solving it with the approach below. Not the most elegant, but worked pretty well:

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);

int textsize = 0;

if(screenInches<5)
        textsize = 16;
else if(screenInches<7.5)
        textsize = 22;
else
        textsize = 24;

Android: How to have different text sizes for different screen sizes with dynamic TextViews?

1 Answers1