in android 3.0, there automatic screenshots taken of applications use in "recent apps" list. looks surfaceflinger responsible taking these screenshots based on following log output:
d/surfaceflinger( 133): screenshot: sw=216, sh=135, minz=0, maxz=21020 d/surfaceflinger( 133): screenshot: result = ok where (if @ all) on filesystem these images cached? ios has similar feature screenshots automatically taken when application sent background, , images cached in /private/var/root/library/caches/snapshots, , i'd know if android keeps these images somewhere accessible.
these thumbnails not accessible applications.
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