bump On Aug 4, 2:12 pm, sdphil <phil.pellouch...@gmail.com> wrote: > I am trying to determine the physical size of a screen in inches. > > Normally, I could do something like this: > > DisplayMetrics metrics = new DisplayMetrics(); > getWindowManager().getDefaultDisplay().getMetrics( metrics ); > > Then use metrics.widthPixels and metrics.heightPixels. Now that I > know the width and height in pixels, I should be able to calculate > size in inches if I know the density. Easy enough, metrics.xdpi and > metrics.ydpi. > > Then screen dimension in inches should be: > > widthInInches = metrics.widthPixels / metrics.xdpi; > heightInInches = metrics.heightPixels / metrics.ydpi; > > Seems simple enough except that it doesn't work. > > On a Motorola Droid, the system reports back: xdpi and ydpi as 96 > (which cannot be true). > > And the screen resolution as: 480 x 854. Which results in a width of > 5" x 8.9" -- which as I'm holding this in my hand right now, I must > say - cannot be correct. > > Any ideas on how to accurately calculate this?
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