Hopefully, when they fix the Droid it won't report 240.  That's what
the emulator reports with a screen size of 3.7 (diagonal) and
WVGA854.  I tried 240 on my Droid, and it's definitely not as accurate
as 264.  At 240 pixels/inch, the Droid would have a 2 inch wide
screen.  The actual width is 1.8 inches.

On Aug 10, 12:41 am, Rob <[email protected]> wrote:
> Thanks, Mark.  That seems to work.  I'm using this:
>
>         float pixels_per_X_inch = displayMetrics.xdpi;
>         float pixels_per_Y_inch = displayMetrics.ydpi;
>
>         if(Build.DEVICE.equals("sholes") && Build.MODEL.equals("Droid"))
>         {
>                 pixels_per_X_inch = 264; // 480/(9*3.7/sqrt(337)) = 264.613474
>                 pixels_per_Y_inch = 264; // 854/(16*3.7/sqrt(337)) = 
> 264.820203
>         }
>
> The 3.7 is the diagonal of the screen in inches (from the device
> specification).  It's supposed to be a 16:9 display with a resolution
> of 480x854.  If somebody knows for certain what the device should
> return for the xdpi/ydpi, please, post it.  I'm sure that 3.7 inches
> is not exact, so maybe I'm off by a few pixels, but for sizing my
> tiles to 1 cm it works quite well.
>
> On Aug 9, 4:48 pm, Mark Murphy <[email protected]> wrote:
>
> > On Mon, Aug 9, 2010 at 7:24 AM, Rob <[email protected]> wrote:
> > > How do I detect what hardware my app is running on?  I mean the
> > > specific brand and model.
>
> > android.os.Build has that information.
>
> > --
> > Mark Murphy (a Commons 
> > Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> > _The Busy Coder's Guide to *Advanced* Android Development_ Version 1.9
> > Available!
>
>

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