> My problem is basically this; If my monitors dpi stays static why is
> the emulated dpi changing between emulator skins?

It has *nothing* to do with your monitor. It's a choice we made
because these densities (120, 160, 240) are the ones likely to be used
by future devices. Like we mentioned earlier, to keep the same density
as a Dream in WVGA, you would need a 5" display. I doubt that many
phones will ship with a 5" display.

It's all about *emulating* phone hardware. The density of your
computer display remains the same, but the emulators emulates the
display density of phones by scaling the pixels accordingly. Actually,
if you know the density of your monitor, you can even pass a flag to
the emulator to set it up so that it will have the same physical size
as an actual phone. For instance, on my Dell 30" monitor, I can use a
monitor density of 96 dpi to make h...@160dpi an w...@240dpi emulators
show up with the same physical size as my Dream (holding the device
next to the emulators is a simple comparison :).

> To me it would make more sense if the dpi of the emulators display
> doesn't change unless the developer explictly states they want to
> emulate a device with a different DPI.

No. Like I said, 160 dpi at other resolutions means a very different
screen size. I mentioned WVGA/5" already, but now imagine the size of
a q...@160dpi display... it would be very tiny. The point is that it
wouldn't help you at all.

-- 
Romain Guy
Android framework engineer
[email protected]

Note: please don't send private questions to me, as I don't have time
to provide private support.  All such questions should be posted on
public forums, where I and others can see and answer them

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