What happens is that Android automatically scales drawables down to ldpi resolution, it's transparent to the application.

Works pretty well: hdpi drawables, on the other hand, often look better if created by hand (not always, but often).

Device compatibility is not affected by what resources you have (and don't have) in your application.

-- Kostya

21.11.2010 20:08, jotobjects пишет:
Hm.  So the sample apps don't support ldpi at all.  What happens if
you try to run such an app on an ldpi device?  Does it fail?  Is not
allowed to be installed in the first place (not sure how that could be
detected in advance)?

Is it true that there are hardly any (or none) ldpi Android devices or
is it important for an app to support ldpi screens?

Is it a reasonable alternative to put the mdpi graphics in the default
drawables directory and have those used for mdpi and scaled for ldpi?
Or have it in drawables-mdpi and in drawables?   I'm trying to weigh
the options, if any, of having our designer resource create the ldpi
images.

On Nov 19, 11:08 pm, Dianne Hackborn<[email protected]>  wrote:
The current base platform doesn't include ldpi images, so you'd need to make
them yourself.  If you are targeting>= 1.6, you don't need any drawables in
the base "drawable" folder, just for whatever density you want and the
system will pick and scale the drawable that best matches.



On Fri, Nov 19, 2010 at 6:05 PM, jotobjects<[email protected]>  wrote:
I'm copying some system Icons into my app - for instance
ic_menu_add.png.  There is one in drawable-mdpi and one in drawable-
hdpi, but not in drawable or drawable-ldpi.
What icon would be used on a ldpi device?  My understanding is that
you need a default version in drawable or one in each of the density
sub-directories.  Is that how it works?
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