Calculating screen size

Question

So I used this code to calculate screen size, but it returns wrong results. It returns a screen size of 4'33" but in reality the screen is 5'.0" So the value 4.33" corresponds to what? Current activity size?

DisplayMetrics metrics = new DisplayMetrics(); getWindowManager().getDefaultDisplay().getMetrics(metrics);


        float height=metrics.heightPixels/metrics.xdpi;
        float width=metrics.widthPixels/metrics.ydpi;

And then, the view

 "The screen size is:"+(float)Math.sqrt(height*height+width*width) +"\n"

Possible duplicate of [Is there a way to determine android physical screen height in cm or inches?](https://stackoverflow.com/questions/2193457/is-there-a-way-to-determine-android-physical-screen-height-in-cm-or-inches) — Andrew Churilo, Apr 07 '19 at 11:18

score 0 · Accepted Answer · answered Apr 07 '19 at 11:47

0

Use double instead of float and see the results. :)

answered Apr 07 '19 at 11:47

Rezaul Karim

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Calculating screen size

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