There doesn't appear to be any official documentation on the required
size.

However, from my testing on the emulator and real devices, it seems
that the clearest/sharpest thumbnail images are obtained by doubling
the resolution of the icon size for each density.

So for HDPI which has an icon size of 72x72, use 144x144 for the
wallpaper thumbnail.
For MDPI with an icon size of 48, use 96.
For LDPI with icon size of 36, use 72.

Following this pattern, if XHDPI is double the density of MDPI, it
should have an icon size of 96, hence I would expect 192x192 for the
thumbnail, at least one dimension of you are reporting below.

Do they really not appear square on your Xoom? Or is it possible that
they are using 192x192 and adding extra padding?


On Sep 8, 1:25 am, nadam <a...@anyro.se> wrote:
> I can't find any documentation or examples oflivewallpaperthumbnail
> sizes. On my Motorola Xoom the thumbnails are displayed as 208x192,
> but other mdpi-devices (phones) use much smaller thumbnails. What are
> the recommended sizes for ldpi, mdpi, hdpi and xhdpi?

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