android - drawable vs. drawable-ldpi/drawable-mdpi -


all android docs mention "drawable" directory. however, when create android project in eclipse, doesn't create "/res/drawable" directory, create "/res/drawable-ldpi" , "/res/drawable-mdpi". imagine have pixel resolution, what's going on here? when i've stepped through tutorials, i've manually created "drawable" directory , put resources in there, did need to? references "/res/drawable/" work if "drawable-{l|m}dpi" present?

i believe added in android 1.6. it's explained here: http://developer.android.com/guide/practices/screens_support.html


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