xml - Android Studio - how was this resource file structure trick achieved? -

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i checking out google i/o app source code in android studio, , came across ide layout of res/ folder - how achieved?

but if @ filesystem @ actual file structure, it's conventional values/styles.xml, values-v17/styles.xml, values-v21/styles.xml arrangement. how can achieve in own app?

http://i.imgur.com/obabnwr.png

this "android" project view, group different files in order minimise file differences vs folder differences.

this default in android 0.9.x

aside 0.9.3


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